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• SSD: NTFS vs EXT4

  - by Joshua

  Always when I read about SSD usage under Linux, the advice is to disable journalling in Ext4 (or use Ext2), since it's too bad for your SSD. But in all articles about SSD tweaks for Windows, I never see any mentions that you should disable NTFS journalling, or that you should stick to FAT32. I know Ext4's journaling is more advanced, but is it so much more damaging to a SSD than that of NTFS? Or are Linux users just a little bit more cautious?

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• How to manually check Ubuntu version? (e.g. from hard drive)

  - by tkoomzaaskz

  There is a fast way to check ubuntu version of the system: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 11.10 Release: 11.10 Codename: oneiric But what are the files that store this information and how can I access them? Particularly, I've got an old partition with a dead Linux lying there and I would like to check what was its Ubuntu version. lsb_release -a shows my current Linux version only...

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• Mount network drive

  - by user971155

  I'm using linux(ubuntu), there's a linux(fedora) server, that I can log in with ssh, is there any possibility //server/dir /mnt/my_mount_dir cifs username=loginpassword=11111,uid=1000,iocharset=utf8,codepage=unicode,unicode 0 0 As far as I'm concerned, this construction uses SMB as primary tool. Is there any possibility to use NFS or any another approach, because in case of SMB it tends to have permission, symlink collisions. PS It would be great if you also provide some links. Thanks.

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• ERROR: Linux route add command failed: external program exited with error status: 4

  - by JohnMerlino

  A remote machine running fedora uses openvpn, and multiple developers were successfully able to connect to it via their client openvpn. However, I am running Ubuntu 12.04 and I am having trouble connecting to the server via vpn. I copied ca.crt, home.key, and home.crt from the server to my local machine to /etc/openvpn folder. My client.conf file looks like this: ############################################## # Sample client-side OpenVPN 2.0 config file # # for connecting to multi-client server. # # # # This configuration can be used by multiple # # clients, however each client should have # # its own cert and key files. # # # # On Windows, you might want to rename this # # file so it has a .ovpn extension # ############################################## # Specify that we are a client and that we # will be pulling certain config file directives # from the server. client # Use the same setting as you are using on # the server. # On most systems, the VPN will not function # unless you partially or fully disable # the firewall for the TUN/TAP interface. ;dev tap dev tun # Windows needs the TAP-Win32 adapter name # from the Network Connections panel # if you have more than one. On XP SP2, # you may need to disable the firewall # for the TAP adapter. ;dev-node MyTap # Are we connecting to a TCP or # UDP server? Use the same setting as # on the server. ;proto tcp proto udp # The hostname/IP and port of the server. # You can have multiple remote entries # to load balance between the servers. remote xx.xxx.xx.130 1194 ;remote my-server-2 1194 # Choose a random host from the remote # list for load-balancing. Otherwise # try hosts in the order specified. ;remote-random # Keep trying indefinitely to resolve the # host name of the OpenVPN server. Very useful # on machines which are not permanently connected # to the internet such as laptops. resolv-retry infinite # Most clients don't need to bind to # a specific local port number. nobind # Downgrade privileges after initialization (non-Windows only) ;user nobody ;group nogroup # Try to preserve some state across restarts. persist-key persist-tun # If you are connecting through an # HTTP proxy to reach the actual OpenVPN # server, put the proxy server/IP and # port number here. See the man page # if your proxy server requires # authentication. ;http-proxy-retry # retry on connection failures ;http-proxy [proxy server] [proxy port #] # Wireless networks often produce a lot # of duplicate packets. Set this flag # to silence duplicate packet warnings. ;mute-replay-warnings # SSL/TLS parms. # See the server config file for more # description. It's best to use # a separate .crt/.key file pair # for each client. A single ca # file can be used for all clients. ca ca.crt cert home.crt key home.key # Verify server certificate by checking # that the certicate has the nsCertType # field set to "server". This is an # important precaution to protect against # a potential attack discussed here: # http://openvpn.net/howto.html#mitm # # To use this feature, you will need to generate # your server certificates with the nsCertType # field set to "server". The build-key-server # script in the easy-rsa folder will do this. ns-cert-type server # If a tls-auth key is used on the server # then every client must also have the key. ;tls-auth ta.key 1 # Select a cryptographic cipher. # If the cipher option is used on the server # then you must also specify it here. ;cipher x # Enable compression on the VPN link. # Don't enable this unless it is also # enabled in the server config file. comp-lzo # Set log file verbosity. verb 3 # Silence repeating messages ;mute 20 But when I start server and look in /var/log/syslog, I notice the following error: May 27 22:13:51 myuser ovpn-client[5626]: /sbin/route add -net 10.27.12.1 netmask 255.255.255.252 gw 10.27.12.37 May 27 22:13:51 myuser ovpn-client[5626]: ERROR: Linux route add command failed: external program exited with error status: 4 May 27 22:13:51 myuser ovpn-client[5626]: /sbin/route add -net 172.27.12.0 netmask 255.255.255.0 gw 10.27.12.37 May 27 22:13:51 myuser ovpn-client[5626]: /sbin/route add -net 10.27.12.1 netmask 255.255.255.255 gw 10.27.12.37 And I am unable to connect to the server via openvpn: $ ssh [email protected] ssh: connect to host xxx.xx.xx.130 port 22: No route to host What may I be doing wrong?

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• Hot to fix nautilus desktop on linux mint

  - by user59530

  so I'm using Linux Mint 13 with Cinnamon and suddenly there are no icons on the desktop and the right click doesn't work, it's like the desktop doesn't start up at all, but the Cinnamon interface and everything else are working just fine. This happens only when I open the session with Cinnamon, if I start the session on the classic Gnome or MATE the desktop works. I tried to re-install Cinnamon but nothing changed. Then, I noticed that there are some little problems in Nautilus (sometimes menus aren't the color they're supposed to be), so I'm convinced that Nautilus might be the problem, but I don't know how to fix this, I've tried a few thing but I'm starting to fear that I'm only making it worse. Also, when I open the terminal and type in nautilus here's what's shows up, any help? (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:85:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:192:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:228:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:275:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:310:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:389:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:737:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1095:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1137:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1755:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1856:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1873:18: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1889:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1947:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1954:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1967:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:2025:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:2075:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:2090:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:2195:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: gnome-panel.css:92:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nautilus.css:15:15: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nautilus.css:15:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nautilus.css:79:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nautilus.css:84:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nautilus.css:113:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nautilus.css:118:18: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nemo.css:15:15: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nemo.css:15:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nemo.css:79:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nemo.css:84:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nemo.css:113:17: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING **: Theme parsing error: nemo.css:118:18: Not using units is deprecated. Assuming 'px'. (nautilus:2906): Gtk-WARNING *: Theme parsing error: unity.css:21:18: Not using units is deprecated. Assuming 'px'. Initializing nautilus-dropbox 1.4.0 Initializing nautilus-open-terminal extension * Message: Initializing gksu extension...

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• Oracle Database 11g now certified on Oracle Linux 6 and RHEL 6

  - by Chuck Speaks

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 DefSemiHidden="true" DefQFormat="false" DefPriority="99" LatentStyleCount="267" UnhideWhenUsed="false" QFormat="true" Name="Normal"/ UnhideWhenUsed="false" QFormat="true" Name="heading 1"/ UnhideWhenUsed="false" QFormat="true" Name="Title"/ UnhideWhenUsed="false" QFormat="true" Name="Subtitle"/ UnhideWhenUsed="false" QFormat="true" Name="Strong"/ UnhideWhenUsed="false" QFormat="true" Name="Emphasis"/ UnhideWhenUsed="false" Name="Table Grid"/ UnhideWhenUsed="false" QFormat="true" Name="No Spacing"/ UnhideWhenUsed="false" Name="Light Shading"/ UnhideWhenUsed="false" Name="Light List"/ UnhideWhenUsed="false" Name="Light Grid"/ UnhideWhenUsed="false" Name="Medium Shading 1"/ UnhideWhenUsed="false" Name="Medium Shading 2"/ UnhideWhenUsed="false" Name="Medium List 1"/ UnhideWhenUsed="false" Name="Medium List 2"/ UnhideWhenUsed="false" Name="Medium Grid 1"/ UnhideWhenUsed="false" Name="Medium Grid 2"/ UnhideWhenUsed="false" Name="Medium Grid 3"/ UnhideWhenUsed="false" Name="Dark List"/ UnhideWhenUsed="false" Name="Colorful Shading"/ UnhideWhenUsed="false" Name="Colorful List"/ UnhideWhenUsed="false" Name="Colorful Grid"/ UnhideWhenUsed="false" Name="Light Shading Accent 1"/ UnhideWhenUsed="false" Name="Light List Accent 1"/ UnhideWhenUsed="false" Name="Light Grid Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 1"/ UnhideWhenUsed="false" QFormat="true" Name="List Paragraph"/ UnhideWhenUsed="false" QFormat="true" Name="Quote"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Quote"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 1"/ UnhideWhenUsed="false" Name="Dark List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 1"/ UnhideWhenUsed="false" Name="Colorful List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 1"/ UnhideWhenUsed="false" Name="Light Shading Accent 2"/ UnhideWhenUsed="false" Name="Light List Accent 2"/ UnhideWhenUsed="false" Name="Light Grid Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 2"/ UnhideWhenUsed="false" Name="Dark List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 2"/ UnhideWhenUsed="false" Name="Colorful List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 2"/ UnhideWhenUsed="false" Name="Light Shading Accent 3"/ UnhideWhenUsed="false" Name="Light List Accent 3"/ UnhideWhenUsed="false" Name="Light Grid Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 3"/ UnhideWhenUsed="false" Name="Dark List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 3"/ UnhideWhenUsed="false" Name="Colorful List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 3"/ UnhideWhenUsed="false" Name="Light Shading Accent 4"/ UnhideWhenUsed="false" Name="Light List Accent 4"/ UnhideWhenUsed="false" Name="Light Grid Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 4"/ UnhideWhenUsed="false" Name="Dark List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 4"/ UnhideWhenUsed="false" Name="Colorful List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 4"/ UnhideWhenUsed="false" Name="Light Shading Accent 5"/ UnhideWhenUsed="false" Name="Light List Accent 5"/ UnhideWhenUsed="false" Name="Light Grid Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 5"/ UnhideWhenUsed="false" Name="Dark List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 5"/ UnhideWhenUsed="false" Name="Colorful List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 5"/ UnhideWhenUsed="false" Name="Light Shading Accent 6"/ UnhideWhenUsed="false" Name="Light List Accent 6"/ UnhideWhenUsed="false" Name="Light Grid Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 6"/ UnhideWhenUsed="false" Name="Dark List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 6"/ UnhideWhenUsed="false" Name="Colorful List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 6"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Book Title"/ /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} http://www.oracle.com/us/corporate/press/1563775  By popular demand....The Oracle 11g database is now certified on Oracle Linux 6 and RHEL 6.  See the link for details. Chuck Speaks @ChuckatOracle

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• Install Oracle Enterprise Linux 5 on VMWare

  - by TUFEKCIOGLU,FATIH

  In this article, we will try to install Install Oracle Enterprise Linux 5 on VMWare. To make the installation easier, I will show the screenshots of the whole steps. 1.   2.   3.   4.   5.   6. 7. 8.   9.   10.   11.   12.   13.   14.   15.   16.   17.   18.   19.   20.   21.   22.   23.   24.   25.   26.   27.   28.   29.   30.   31.   32.   33.   34.   35.   36.   37.   38.   39.   40.   41.   42.   43.   44.   45.   46.   47.   48.   49.   50.   51.   52.   53.   54.   55.   56.   57.   58.   59.   60.   61.   62.   The installation is completed, Thanks, Fatih Tufekcioglu  

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• No device file for partition on logical volume (Linux LVM)

  - by Brian

  I created a logical volume (scandata) containing a single ext3 partition. It is the only logical volume in its volume group (case4t). Said volume group is comprised by 3 physical volumes, which are three primary partitions on a single block device (/dev/sdb). When I created it, I could mount the partition via the block device /dev/mapper/case4t-scandatap1. Since last reboot the aforementioned block device file has disappeared. It may be of note -- I'm not sure -- that my superior (a college professor) had prompted this reboot by running sudo chmod -R [his name] /usr/bin, which obliterated all suid in its path, preventing the both of us from sudo-ing. That issue has been (temporarily) rectified via this operation. Now I'll cut the chatter and get started with the terminal dumps: $ sudo pvs; sudo vgs; sudo lvs Logging initialised at Sat Jan 8 11:42:34 2011 Set umask to 0077 Scanning for physical volume names PV VG Fmt Attr PSize PFree /dev/sdb1 case4t lvm2 a- 819.32G 0 /dev/sdb2 case4t lvm2 a- 866.40G 0 /dev/sdb3 case4t lvm2 a- 47.09G 0 Wiping internal VG cache Logging initialised at Sat Jan 8 11:42:34 2011 Set umask to 0077 Finding all volume groups Finding volume group "case4t" VG #PV #LV #SN Attr VSize VFree case4t 3 1 0 wz--n- 1.69T 0 Wiping internal VG cache Logging initialised at Sat Jan 8 11:42:34 2011 Set umask to 0077 Finding all logical volumes LV VG Attr LSize Origin Snap% Move Log Copy% Convert scandata case4t -wi-a- 1.69T Wiping internal VG cache $ sudo vgchange -a y Logging initialised at Sat Jan 8 11:43:14 2011 Set umask to 0077 Finding all volume groups Finding volume group "case4t" 1 logical volume(s) in volume group "case4t" already active 1 existing logical volume(s) in volume group "case4t" monitored Found volume group "case4t" Activated logical volumes in volume group "case4t" 1 logical volume(s) in volume group "case4t" now active Wiping internal VG cache $ ls /dev | grep case4t case4t $ ls /dev/mapper case4t-scandata control $ sudo fdisk -l /dev/case4t/scandata Disk /dev/case4t/scandata: 1860.5 GB, 1860584865792 bytes 255 heads, 63 sectors/track, 226203 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00049bf5 Device Boot Start End Blocks Id System /dev/case4t/scandata1 1 226203 1816975566 83 Linux $ sudo parted /dev/case4t/scandata print Model: Linux device-mapper (linear) (dm) Disk /dev/mapper/case4t-scandata: 1861GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 1861GB 1861GB primary ext3 $ sudo fdisk -l /dev/sdb Disk /dev/sdb: 1860.5 GB, 1860593254400 bytes 255 heads, 63 sectors/track, 226204 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000081 Device Boot Start End Blocks Id System /dev/sdb1 1 106955 859116006 83 Linux /dev/sdb2 113103 226204 908491815 83 Linux /dev/sdb3 106956 113102 49375777+ 83 Linux Partition table entries are not in disk order $ sudo parted /dev/sdb print Model: DELL PERC 6/i (scsi) Disk /dev/sdb: 1861GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 880GB 880GB primary reiserfs 3 880GB 930GB 50.6GB primary 2 930GB 1861GB 930GB primary I find it a bit strange that partition one above is said to be reiserfs, or if it matters -- it was previously reiserfs, but LVM recognizes it as a PV. To reiterate, neither /dev/mapper/case4t-scandatap1 (which I had used previously) nor /dev/case4t/scandata1 (as printed by fdisk) exists. And /dev/case4t/scandata (no partition number) cannot be mounted: $sudo mount -t ext3 /dev/case4t/scandata /mnt/new mount: wrong fs type, bad option, bad superblock on /dev/mapper/case4t-scandata, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so All I get on syslog is: [170059.538137] VFS: Can't find ext3 filesystem on dev dm-0. Thanks in advance for any help you can offer, Brian P.S. I am on Ubuntu GNU/Linux 2.6.28-11-server (Jaunty) (out of date, I know -- that's on the laundry list).

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• EMERGENCY - Major Problems After Perl Module Installed via WHM

  - by Russell C.

  I attempted to install the perl module Net::Twitter::Role::API::Lists using WHM and after doing so my whole site came down. It seems that something that was updated with the install isn't functioning correctly and since our website it written in Perl none of our site scripts will run. In almost 8 years of working with Perl I've never had any issues arise after installing a perl module so I have no idea how to even start troubleshooting. The error I see when trying to compile any of our Perl scripts is below. I'd appreciate any advice on what might be wrong and steps on how I can go about resolve it. Thanks in advance for your help! Attribute (+type_constraint) of class MooseX::AttributeHelpers::Counter has no associated methods (did you mean to provide an "is" argument?) at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Attribute.pm line 551 Moose::Meta::Attribute::_check_associated_methods('Moose::Meta::Attribute=HASH(0x9ae35b4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Class.pm line 303 Moose::Meta::Class::add_attribute('Moose::Meta::Class=HASH(0xa4d7718)', 'Moose::Meta::Attribute=HASH(0x9ae35b4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 142 Moose::Meta::Role::Application::ToClass::apply_attributes('Moose::Meta::Role::Application::ToClass=HASH(0xa4dfb38)', 'Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application.pm line 72 Moose::Meta::Role::Application::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4dfb38)', 'Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 31 Moose::Meta::Role::Application::ToClass::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4dfb38)', 'Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role.pm line 419 Moose::Meta::Role::apply('Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 132 Moose::Util::_apply_all_roles('Moose::Meta::Class=HASH(0xa4d7718)', 'undef', 'MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 86 Moose::Util::apply_all_roles('Moose::Meta::Class=HASH(0xa4d7718)', 'MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose.pm line 57 Moose::with('Moose::Meta::Class=HASH(0xa4d7718)', 'MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Exporter.pm line 293 Moose::with('MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 10 require MooseX/AttributeHelpers/Counter.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers.pm line 23 MooseX::AttributeHelpers::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/AttributeHelpers.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute/Role/Meta/Class.pm line 6 MooseX::ClassAttribute::Role::Meta::Class::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/ClassAttribute/Role/Meta/Class.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute.pm line 11 MooseX::ClassAttribute::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/ClassAttribute.pm called at /usr/lib/perl5/site_perl/5.8.8/Olson/Abbreviations.pm line 6 Olson::Abbreviations::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require Olson/Abbreviations.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTime/ButMaintained.pm line 10 MooseX::Types::DateTime::ButMaintained::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/Types/DateTime/ButMaintained.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTimeX.pm line 9 MooseX::Types::DateTimeX::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/Types/DateTimeX.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3/Client/Bucket.pm line 5 Net::Amazon::S3::Client::Bucket::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require Net/Amazon/S3/Client/Bucket.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3.pm line 111 Net::Amazon::S3::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require Net/Amazon/S3.pm called at /home/atrails/www/cgi-bin/main.pm line 1633 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require main.pm called at /home/atrails/cron/meetup.pl line 20 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 Attribute (+default) of class MooseX::AttributeHelpers::Counter has no associated methods (did you mean to provide an "is" argument?) at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Attribute.pm line 551 Moose::Meta::Attribute::_check_associated_methods('Moose::Meta::Attribute=HASH(0xa4df4b4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Class.pm line 303 Moose::Meta::Class::add_attribute('Moose::Meta::Class=HASH(0xa4d7718)', 'Moose::Meta::Attribute=HASH(0xa4df4b4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 142 Moose::Meta::Role::Application::ToClass::apply_attributes('Moose::Meta::Role::Application::ToClass=HASH(0xa4dfb38)', 'Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application.pm line 72 Moose::Meta::Role::Application::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4dfb38)', 'Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 31 Moose::Meta::Role::Application::ToClass::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4dfb38)', 'Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role.pm line 419 Moose::Meta::Role::apply('Moose::Meta::Role=HASH(0xa3dbdec)', 'Moose::Meta::Class=HASH(0xa4d7718)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 132 Moose::Util::_apply_all_roles('Moose::Meta::Class=HASH(0xa4d7718)', 'undef', 'MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 86 Moose::Util::apply_all_roles('Moose::Meta::Class=HASH(0xa4d7718)', 'MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose.pm line 57 Moose::with('Moose::Meta::Class=HASH(0xa4d7718)', 'MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Exporter.pm line 293 Moose::with('MooseX::AttributeHelpers::Trait::Counter') called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 10 require MooseX/AttributeHelpers/Counter.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers.pm line 23 MooseX::AttributeHelpers::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/AttributeHelpers.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute/Role/Meta/Class.pm line 6 MooseX::ClassAttribute::Role::Meta::Class::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/ClassAttribute/Role/Meta/Class.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute.pm line 11 MooseX::ClassAttribute::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/ClassAttribute.pm called at /usr/lib/perl5/site_perl/5.8.8/Olson/Abbreviations.pm line 6 Olson::Abbreviations::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require Olson/Abbreviations.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTime/ButMaintained.pm line 10 MooseX::Types::DateTime::ButMaintained::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/Types/DateTime/ButMaintained.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTimeX.pm line 9 MooseX::Types::DateTimeX::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require MooseX/Types/DateTimeX.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3/Client/Bucket.pm line 5 Net::Amazon::S3::Client::Bucket::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require Net/Amazon/S3/Client/Bucket.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3.pm line 111 Net::Amazon::S3::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require Net/Amazon/S3.pm called at /home/atrails/www/cgi-bin/main.pm line 1633 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 require main.pm called at /home/atrails/cron/meetup.pl line 20 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Counter.pm line 0 Attribute (+type_constraint) of class MooseX::AttributeHelpers::Number has no associated methods (did you mean to provide an "is" argument?) at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Attribute.pm line 551 Moose::Meta::Attribute::_check_associated_methods('Moose::Meta::Attribute=HASH(0xa4ea48c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Class.pm line 303 Moose::Meta::Class::add_attribute('Moose::Meta::Class=HASH(0xa4f778c)', 'Moose::Meta::Attribute=HASH(0xa4ea48c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 142 Moose::Meta::Role::Application::ToClass::apply_attributes('Moose::Meta::Role::Application::ToClass=HASH(0xa4f8014)', 'Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application.pm line 72 Moose::Meta::Role::Application::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4f8014)', 'Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 31 Moose::Meta::Role::Application::ToClass::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4f8014)', 'Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role.pm line 419 Moose::Meta::Role::apply('Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 132 Moose::Util::_apply_all_roles('Moose::Meta::Class=HASH(0xa4f778c)', 'undef', 'MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 86 Moose::Util::apply_all_roles('Moose::Meta::Class=HASH(0xa4f778c)', 'MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose.pm line 57 Moose::with('Moose::Meta::Class=HASH(0xa4f778c)', 'MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Exporter.pm line 293 Moose::with('MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 9 require MooseX/AttributeHelpers/Number.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers.pm line 24 MooseX::AttributeHelpers::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/AttributeHelpers.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute/Role/Meta/Class.pm line 6 MooseX::ClassAttribute::Role::Meta::Class::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/ClassAttribute/Role/Meta/Class.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute.pm line 11 MooseX::ClassAttribute::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/ClassAttribute.pm called at /usr/lib/perl5/site_perl/5.8.8/Olson/Abbreviations.pm line 6 Olson::Abbreviations::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require Olson/Abbreviations.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTime/ButMaintained.pm line 10 MooseX::Types::DateTime::ButMaintained::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/Types/DateTime/ButMaintained.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTimeX.pm line 9 MooseX::Types::DateTimeX::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/Types/DateTimeX.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3/Client/Bucket.pm line 5 Net::Amazon::S3::Client::Bucket::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require Net/Amazon/S3/Client/Bucket.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3.pm line 111 Net::Amazon::S3::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require Net/Amazon/S3.pm called at /home/atrails/www/cgi-bin/main.pm line 1633 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require main.pm called at /home/atrails/cron/meetup.pl line 20 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 Attribute (+default) of class MooseX::AttributeHelpers::Number has no associated methods (did you mean to provide an "is" argument?) at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Attribute.pm line 551 Moose::Meta::Attribute::_check_associated_methods('Moose::Meta::Attribute=HASH(0xa4f7804)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Class.pm line 303 Moose::Meta::Class::add_attribute('Moose::Meta::Class=HASH(0xa4f778c)', 'Moose::Meta::Attribute=HASH(0xa4f7804)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 142 Moose::Meta::Role::Application::ToClass::apply_attributes('Moose::Meta::Role::Application::ToClass=HASH(0xa4f8014)', 'Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application.pm line 72 Moose::Meta::Role::Application::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4f8014)', 'Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 31 Moose::Meta::Role::Application::ToClass::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa4f8014)', 'Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role.pm line 419 Moose::Meta::Role::apply('Moose::Meta::Role=HASH(0xa38b764)', 'Moose::Meta::Class=HASH(0xa4f778c)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 132 Moose::Util::_apply_all_roles('Moose::Meta::Class=HASH(0xa4f778c)', 'undef', 'MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 86 Moose::Util::apply_all_roles('Moose::Meta::Class=HASH(0xa4f778c)', 'MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose.pm line 57 Moose::with('Moose::Meta::Class=HASH(0xa4f778c)', 'MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Exporter.pm line 293 Moose::with('MooseX::AttributeHelpers::Trait::Number') called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 9 require MooseX/AttributeHelpers/Number.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers.pm line 24 MooseX::AttributeHelpers::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/AttributeHelpers.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute/Role/Meta/Class.pm line 6 MooseX::ClassAttribute::Role::Meta::Class::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/ClassAttribute/Role/Meta/Class.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute.pm line 11 MooseX::ClassAttribute::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/ClassAttribute.pm called at /usr/lib/perl5/site_perl/5.8.8/Olson/Abbreviations.pm line 6 Olson::Abbreviations::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require Olson/Abbreviations.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTime/ButMaintained.pm line 10 MooseX::Types::DateTime::ButMaintained::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/Types/DateTime/ButMaintained.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTimeX.pm line 9 MooseX::Types::DateTimeX::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require MooseX/Types/DateTimeX.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3/Client/Bucket.pm line 5 Net::Amazon::S3::Client::Bucket::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require Net/Amazon/S3/Client/Bucket.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3.pm line 111 Net::Amazon::S3::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require Net/Amazon/S3.pm called at /home/atrails/www/cgi-bin/main.pm line 1633 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 require main.pm called at /home/atrails/cron/meetup.pl line 20 main::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/Number.pm line 0 Attribute (+type_constraint) of class MooseX::AttributeHelpers::String has no associated methods (did you mean to provide an "is" argument?) at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Attribute.pm line 551 Moose::Meta::Attribute::_check_associated_methods('Moose::Meta::Attribute=HASH(0xa4fdae0)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Class.pm line 303 Moose::Meta::Class::add_attribute('Moose::Meta::Class=HASH(0xa4fd5c4)', 'Moose::Meta::Attribute=HASH(0xa4fdae0)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 142 Moose::Meta::Role::Application::ToClass::apply_attributes('Moose::Meta::Role::Application::ToClass=HASH(0xa5002d8)', 'Moose::Meta::Role=HASH(0xa42a690)', 'Moose::Meta::Class=HASH(0xa4fd5c4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application.pm line 72 Moose::Meta::Role::Application::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa5002d8)', 'Moose::Meta::Role=HASH(0xa42a690)', 'Moose::Meta::Class=HASH(0xa4fd5c4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role/Application/ToClass.pm line 31 Moose::Meta::Role::Application::ToClass::apply('Moose::Meta::Role::Application::ToClass=HASH(0xa5002d8)', 'Moose::Meta::Role=HASH(0xa42a690)', 'Moose::Meta::Class=HASH(0xa4fd5c4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Meta/Role.pm line 419 Moose::Meta::Role::apply('Moose::Meta::Role=HASH(0xa42a690)', 'Moose::Meta::Class=HASH(0xa4fd5c4)') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 132 Moose::Util::_apply_all_roles('Moose::Meta::Class=HASH(0xa4fd5c4)', 'undef', 'MooseX::AttributeHelpers::Trait::String') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Util.pm line 86 Moose::Util::apply_all_roles('Moose::Meta::Class=HASH(0xa4fd5c4)', 'MooseX::AttributeHelpers::Trait::String') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose.pm line 57 Moose::with('Moose::Meta::Class=HASH(0xa4fd5c4)', 'MooseX::AttributeHelpers::Trait::String') called at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Moose/Exporter.pm line 293 Moose::with('MooseX::AttributeHelpers::Trait::String') called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 10 require MooseX/AttributeHelpers/String.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers.pm line 25 MooseX::AttributeHelpers::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 require MooseX/AttributeHelpers.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute/Role/Meta/Class.pm line 6 MooseX::ClassAttribute::Role::Meta::Class::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 require MooseX/ClassAttribute/Role/Meta/Class.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/ClassAttribute.pm line 11 MooseX::ClassAttribute::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 require MooseX/ClassAttribute.pm called at /usr/lib/perl5/site_perl/5.8.8/Olson/Abbreviations.pm line 6 Olson::Abbreviations::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 require Olson/Abbreviations.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTime/ButMaintained.pm line 10 MooseX::Types::DateTime::ButMaintained::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 require MooseX/Types/DateTime/ButMaintained.pm called at /usr/lib/perl5/site_perl/5.8.8/MooseX/Types/DateTimeX.pm line 9 MooseX::Types::DateTimeX::BEGIN() called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 eval {...} called at /usr/lib/perl5/site_perl/5.8.8/MooseX/AttributeHelpers/String.pm line 0 require MooseX/Types/DateTimeX.pm called at /usr/lib/perl5/site_perl/5.8.8/Net/Amazon/S3/Client/Bucket.pm line 5 Net::Amazon::S3::Client::Bucket::BEGIN() called at /usr/lib/perl5/site_per

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• Why does Ubuntu (and other ubuntu based distros like lubuntu and linux mint) randomly shutdown on my laptop?

  - by Imran

  I have a lenovo g555 laptop and whenever I try and boot a ubuntu based distro off a usb, it randomly shuts off my PC (Not like a normal shutdown with shutdown loading screen but a like a sudden hard power off). This problem occurs even if I have installed the distro on my harddrive. In the past I've been able to use the distro for 10 min or so before it would it would do this. Now with the latest distros, It randomly pwers off even before it has fully booted up. My hardware specs are on this website.

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• Frequent Kernel Panic on CentOS 6.5

  - by Manuel Sopena Ballesteros

  I have a webserver with the configuration below: VMWare ESXi environemt CPanel installed CentOS release 6.5 (Final) 4 CPUs 2G RAM 2x VM disks 100G each LVM system My issue is I am getting kernel panic quite frequently. These is a list of some processes blocked I could see from the console: mysqld queueprocd httpd suphp vmtoolsd loop0 auditd this is my sar logs Linux 2.6.32-431.3.1.el6.x86_64 (test01) 08/22/2014 _x86_64_ (4 CPU) 12:00:01 AM CPU %user %nice %system %iowait %steal %idle 12:10:01 AM all 26.86 0.01 0.98 0.57 0.00 71.57 12:20:01 AM all 1.78 0.02 1.03 0.08 0.00 97.09 12:30:01 AM all 26.34 0.02 0.85 0.05 0.00 72.74 12:40:01 AM all 27.12 0.01 1.11 1.22 0.00 70.54 12:50:01 AM all 1.59 0.02 0.94 0.13 0.00 97.32 01:00:01 AM all 26.10 0.01 0.77 0.04 0.00 73.07 01:10:01 AM all 27.51 0.01 1.16 0.14 0.00 71.18 01:20:01 AM all 1.80 0.07 1.06 0.08 0.00 96.99 01:30:01 AM all 26.19 0.01 0.78 0.05 0.00 72.96 01:40:01 AM all 26.62 0.02 0.87 0.05 0.00 72.45 01:50:02 AM all 1.35 0.01 0.87 0.02 0.00 97.75 02:00:01 AM all 26.11 0.02 0.69 0.02 0.00 73.17 02:10:01 AM all 26.73 0.02 0.89 0.14 0.00 72.21 02:20:01 AM all 1.45 0.01 0.92 0.04 0.00 97.58 02:30:01 AM all 26.59 0.01 1.06 0.03 0.00 72.31 02:40:01 AM all 26.27 0.01 0.72 0.05 0.00 72.95 02:50:01 AM all 0.86 0.01 0.50 0.09 0.00 98.53 03:00:01 AM all 25.61 0.02 0.39 0.03 0.00 73.96 03:10:01 AM all 26.30 0.08 0.66 0.14 0.00 72.82 03:20:01 AM all 0.81 0.01 0.51 0.04 0.00 98.63 03:30:02 AM all 26.15 0.02 0.53 0.07 0.00 73.24 03:40:01 AM all 26.06 0.01 0.47 0.04 0.00 73.42 03:50:01 AM all 0.96 0.02 0.51 0.03 0.00 98.48 Average: all 17.69 0.02 0.79 0.14 0.00 81.36 06:58:14 AM LINUX RESTART 07:00:01 AM CPU %user %nice %system %iowait %steal %idle 07:10:01 AM all 1.04 0.02 0.57 0.95 0.00 97.42 07:20:02 AM all 0.66 0.01 0.39 0.06 0.00 98.87 07:30:01 AM all 25.71 0.01 0.45 0.16 0.00 73.67 07:40:01 AM all 25.88 0.01 0.35 0.08 0.00 73.68 As you can see the server became unresponsive at 03.50 AM and I had to reset the VM at 06.58 AM to fix it. sar -d 03:00:01 PM dev8-16 0.16 0.01 3.37 20.78 0.00 12.40 9.29 0.15 03:00:01 PM dev8-0 4.08 5.72 77.50 20.38 0.06 15.15 3.13 1.28 03:00:01 PM dev253-0 10.37 5.74 80.87 8.35 0.13 12.52 1.24 1.29 03:00:01 PM dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:10:01 PM dev8-16 0.27 0.17 3.17 12.22 0.00 11.49 7.95 0.22 03:10:01 PM dev8-0 6.37 18.98 136.19 24.34 0.05 7.25 2.18 1.39 03:10:01 PM dev253-0 17.91 19.15 137.94 8.77 0.13 7.11 0.78 1.41 03:10:01 PM dev253-1 0.18 0.00 1.41 8.00 0.00 9.09 0.52 0.01 03:10:01 PM DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util 03:20:01 PM dev8-16 0.17 0.23 2.04 13.39 0.00 6.07 5.29 0.09 03:20:01 PM dev8-0 3.83 18.57 78.45 25.35 0.05 13.25 2.73 1.05 03:20:01 PM dev253-0 10.30 18.80 80.49 9.64 0.14 13.89 1.03 1.06 03:20:01 PM dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:30:01 PM dev8-16 0.26 0.16 4.59 18.56 0.00 6.44 5.54 0.14 03:30:01 PM dev8-0 5.97 24.07 117.83 23.77 0.05 8.53 2.13 1.27 03:30:01 PM dev253-0 15.90 24.23 122.42 9.22 0.12 7.71 0.81 1.29 03:30:01 PM dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:40:01 PM dev8-16 0.20 0.00 2.32 11.44 0.00 8.35 5.90 0.12 03:40:01 PM dev8-0 4.39 19.58 77.94 22.24 0.06 12.87 2.12 0.93 03:40:01 PM dev253-0 10.25 19.58 80.25 9.74 0.12 11.63 0.91 0.94 03:40:01 PM dev253-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 03:50:01 PM dev8-16 0.23 0.50 2.32 12.44 0.00 6.27 5.13 0.12 03:50:01 PM dev8-0 5.09 9.00 95.04 20.45 0.04 7.36 2.10 1.07 03:50:01 PM dev253-0 12.47 9.50 96.82 8.53 0.08 6.76 0.87 1.08 03:50:01 PM dev253-1 0.07 0.00 0.54 8.00 0.00 14.10 0.40 0.00 04:00:01 PM dev8-16 0.21 0.00 2.04 9.89 0.00 7.00 5.87 0.12 04:00:01 PM dev8-0 4.68 1.64 94.70 20.57 0.05 10.71 2.41 1.13 04:00:01 PM dev253-0 12.27 1.64 96.74 8.02 0.12 9.95 0.93 1.14 sar -q 01:00:01 AM 6 205 2.02 1.32 0.81 01:10:01 AM 3 187 0.08 0.72 0.86 01:20:01 AM 2 187 0.04 0.18 0.49 01:30:01 AM 4 205 2.04 1.34 0.82 01:40:01 AM 2 185 0.02 0.68 0.83 01:50:02 AM 1 185 0.08 0.15 0.45 02:00:01 AM 5 202 2.02 1.30 0.78 02:10:01 AM 4 185 0.11 0.72 0.84 02:20:01 AM 1 183 0.17 0.15 0.45 02:30:01 AM 5 206 2.03 1.32 0.79 02:40:01 AM 2 184 0.08 0.70 0.83 02:50:01 AM 1 183 0.00 0.10 0.43 03:00:01 AM 7 205 2.03 1.32 0.78 03:10:01 AM 2 194 0.34 0.73 0.83 03:20:01 AM 1 184 0.00 0.13 0.44 03:30:02 AM 4 201 2.04 1.32 0.78 03:40:01 AM 2 193 0.06 0.67 0.81 03:50:01 AM 1 183 0.06 0.12 0.43 Average: 3 192 0.68 0.70 0.69 06:58:14 AM LINUX RESTART 07:00:01 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15 07:10:01 AM 2 181 0.00 0.09 0.11 07:20:02 AM 1 179 0.00 0.00 0.04 07:30:01 AM 4 197 2.12 1.33 0.58 sar -r Linux 2.6.32-431.3.1.el6.x86_64 (test01) 08/22/2014 _x86_64_ (4 CPU) 12:00:01 AM kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit 12:10:01 AM 227484 1694468 88.16 117444 917004 635308 10.50 12:20:01 AM 219692 1702260 88.57 119556 920540 630940 10.43 12:30:01 AM 196248 1725704 89.79 121376 923592 695048 11.49 12:40:01 AM 127524 1794428 93.36 125004 1016196 633048 10.46 12:50:01 AM 127156 1794796 93.38 128212 1014536 624992 10.33 01:00:01 AM 110764 1811188 94.24 129964 1001608 700016 11.57 01:10:01 AM 160560 1761392 91.65 132260 973472 628640 10.39 01:20:01 AM 133076 1788876 93.08 134144 982608 655524 10.83 01:30:01 AM 121512 1800440 93.68 135548 985676 700500 11.58 01:40:01 AM 140640 1781312 92.68 137220 988576 628280 10.38 01:50:02 AM 139160 1782792 92.76 138688 990672 625224 10.33 02:00:01 AM 106112 1815840 94.48 139940 993976 700360 11.57 02:10:01 AM 155400 1766552 91.91 142112 971864 625656 10.34 02:20:01 AM 154056 1767896 91.98 143732 975556 621352 10.27 02:30:01 AM 110856 1811096 94.23 145032 978288 709360 11.72 02:40:01 AM 140200 1781752 92.71 146568 980656 624872 10.33 02:50:01 AM 137600 1784352 92.84 148940 984484 621948 10.28 03:00:01 AM 105032 1816920 94.54 150208 985736 706060 11.67 03:10:01 AM 168996 1752956 91.21 154708 941500 656312 10.85 03:20:01 AM 169408 1752544 91.19 156096 944100 621780 10.28 03:30:02 AM 132360 1789592 93.11 157724 951612 701296 11.59 03:40:01 AM 159012 1762940 91.73 158940 942560 656292 10.85 03:50:01 AM 163192 1758760 91.51 160312 944576 624544 10.32 Average: 148089 1773863 92.29 140162 969973 653363 10.80 06:58:14 AM LINUX RESTART 07:00:01 AM kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit 07:10:01 AM 1016628 905324 47.10 85568 447556 600932 9.93 07:20:02 AM 1009996 911956 47.45 87616 451200 596156 9.85 07:30:01 AM 961128 960824 49.99 89164 464332 658912 10.89 07:40:01 AM 973376 948576 49.35 90880 473084 600176 9.92 dmesg does not show any relevant information. I don't see any bottleneck in sar, any idea what can I check next? thank you very much

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• Backdoor in OpenBSD how is it that no developer saw it ? And what about other Linux ? [closed]

  - by user310291

  It had been revealed that there have been backdoor implanted in OpenBSD http://www.infoworld.com/d/developer-world/software-security-honesty-the-best-policy-285 OpenBSD is opensource, how is it that nobody in the community developper could see it in the source code ? So how can one trust all the other "opensource" Linux Of course OpenBSD is only a case, the point is not about OpenBSD, it is about opensource in general. my question is not about Openbsd per se it's about source code os inspection especially c/c++ since most are written in these languages. Also once the source is compiled how one can be sure that it really reflects the source code ? If a law requires that a backdoor being implanted and obliges to deny that kind of action under the guise of security, how can you be sure that the system has not been corrupted by some tools ? As said there is there is a "nondisclosure agreement" My guess is that 99.99% of developpers in the world are just incapable of understanding os source code and won't even bother to look at it. And above all nobody wonders about why the gov wants such massive backdoor, and that of course they will pressure medias to deny.

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• X11 performance problem after upgrading from Centos3 to Centos5 with an ATI Rage XL

  - by Marcelo Santos

  After upgrading a computer from Centos3 to Centos5 an application that does a lot of scrolling took a very high performance hit. top tells me that X is using a lot of CPU and that was not happening before. The machine has an ATI Rage XL with 8MB and X is using the ati driver as there is no proprietary ATI driver for this board on linux. The xorg.conf: Section "Device" Identifier "Videocard0" Driver "ati" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 Modes "1024x768" "800x600" "640x480" EndSubSection EndSection Section "DRI" Group 0 Mode 0666 EndSection A similar machine that still has Centos3 installed is able to start DRI on the X server while this one is not, this is the Xorg.0.log for the Centos5 machine: drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is -1, (No such device or address) drmOpenDevice: open result is -1, (No such device or address) drmOpenDevice: Open failed drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is -1, (No such device or address) drmOpenDevice: open result is -1, (No such device or address) drmOpenDevice: Open failed [drm] failed to load kernel module "mach64" (II) ATI(0): [drm] drmOpen failed (EE) ATI(0): [dri] DRIScreenInit Failed (II) ATI(0): Largest offscreen areas (with overlaps): (II) ATI(0): 1024 x 1279 rectangle at 0,768 (II) ATI(0): 768 x 1280 rectangle at 0,768 (II) ATI(0): Using XFree86 Acceleration Architecture (XAA) Screen to screen bit blits Solid filled rectangles 8x8 mono pattern filled rectangles Indirect CPU to Screen color expansion Solid Lines Offscreen Pixmaps Setting up tile and stipple cache: 32 128x128 slots 10 256x256 slots (==) ATI(0): Backing store disabled (==) ATI(0): Silken mouse enabled (II) ATI(0): Direct rendering disabled (==) RandR enabled I also tried using EXA instead of XAA and setting: Option "AccelMethod" "XAA" Option "XAANoOffscreenPixmaps" "true" uname -a Linux sir5.erg.inpe.br 2.6.18-128.7.1.el5 #1 SMP Mon Aug 24 08:20:55 EDT 2009 i686 i686 i386 GNU/Linux rpm -qa | grep xorg-x11-server xorg-x11-server-utils-7.1-4.fc6 xorg-x11-server-sdk-1.1.1-48.52.el5 xorg-x11-server-Xvfb-1.1.1-48.52.el5 xorg-x11-server-Xnest-1.1.1-48.52.el5 xorg-x11-server-Xorg-1.1.1-48.52.el5 The drmOpenDevice error continues when using the suggested Option "AIGLX" "true".

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• Redhat 5.5: Multi-thread process only uses 1 CPU of the available 8

  - by Tonny

  Weird situation: Redhat Enterprise 5.5 (stock install, no updates, x64) on a HP z800 workstation. (Dual Xeon 2,2 Ghz. 8 cores, 16 if you count Hyper-threading. RH sees 16 cores.) We have an application that can utilize 1, 2 or 4 threads for heavy calculations. Somehow all these threads run on the same core at 100% load (the other 15 cores are nearly idle) so there is absolutely no benefit from the extra threads. In fact there is a slight slowdown as the threads get in each others way on the single core. How do I get them to run on separate cores (if possible)? Application is 64 bit. Can't change anything about the software except changing the threads setting. Is there some obscure Linux setting I can try to change? (I'm a True64 and Aix guy. I use Linux, but have no in depth knowledge of the process scheduling on Linux.)

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• "chown mysql:mysql /data/tmp" command

  - by Mellon

  I am on a Linux ubuntu machine with MySQL installed. If there is a MySQL installation on a Ubuntu machine, I saw some people doing the following thing: sudo chown mysql:mysql /data/tmp I get confused, I know the meaning of the above command, which is to change the owner of /data/tmp to user 'mysql' and change the group of it to 'mysql' group. But (my questions): 1. Why would one run the above command? If I create a table in my_db database, by default, there will be .frm, .MYD, and .MYI files (data files) be created automatically by MySQL under /var/lib/mysql/my_db/ . So, does the above command changes the default MySQL data directory to /data/tmp/ instead of /var/lib/mysql/my_db/? Basically, I would like to know the purpose and effect of the above command. (better with examples) 2. Where does the 'mysql' owner and group come from? Does the installation of MySQL on a Linux machine automatically create the 'mysql' user and group? or People need to manually create a mysql account for the linux machine?

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• Disabling CPU management

  - by Tiffany Walker

  If I add the following processor.max_cstate=0 to the kernel command line for boot up, does that disable all CPU power management and throttling? I also found: http://www.experts-exchange.com/OS/Linux/Administration/A_3492-Avoiding-CPU-speed-scaling-in-modern-Linux-distributions-Running-CPU-at-full-speed-Tips.html The link talks of Change CPU governor from 'ondemand' to 'performance' for all CPUs/cores and disabling kondemand from kernel. Server is for web hosting UPDATES: 2.6.32-379.1.1.lve1.1.7.6.el6.x86_64 #1 SMP Sat Aug 4 09:56:37 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux . # dmidecode 2.11 SMBIOS 2.6 present. 74 structures occupying 2878 bytes. Table at 0x0009F000. Handle 0x0000, DMI type 0, 24 bytes BIOS Information Vendor: American Megatrends Inc. Version: 1.0c Release Date: 05/27/2010 Address: 0xF0000 Runtime Size: 64 kB ROM Size: 4096 kB Characteristics: ISA is supported PCI is supported PNP is supported BIOS is upgradeable BIOS shadowing is allowed ESCD support is available Boot from CD is supported Selectable boot is supported BIOS ROM is socketed EDD is supported 5.25"/1.2 MB floppy services are supported (int 13h) 3.5"/720 kB floppy services are supported (int 13h) 3.5"/2.88 MB floppy services are supported (int 13h) Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) Serial services are supported (int 14h) Printer services are supported (int 17h) CGA/mono video services are supported (int 10h) ACPI is supported USB legacy is supported LS-120 boot is supported ATAPI Zip drive boot is supported BIOS boot specification is supported Targeted content distribution is supported BIOS Revision: 8.16 Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: Supermicro Product Name: X8SIE Version: 0123456789 Serial Number: 0123456789 UUID: 49434D53-0200-9033-2500-33902500D52C Wake-up Type: Power Switch SKU Number: To Be Filled By O.E.M. Family: To Be Filled By O.E.M. Handle 0x0002, DMI type 2, 15 bytes Base Board Information Manufacturer: Supermicro Product Name: X8SIE Version: 0123456789 Serial Number: VM11S61561 Asset Tag: To Be Filled By O.E.M. Features: Board is a hosting board Board is replaceable Location In Chassis: To Be Filled By O.E.M. Chassis Handle: 0x0003 Type: Motherboard Contained Object Handles: 0 Handle 0x0003, DMI type 3, 21 bytes Chassis Information Manufacturer: Supermicro Type: Sealed-case PC Lock: Not Present Version: 0123456789 Serial Number: 0123456789 Asset Tag: To Be Filled By O.E.M. Boot-up State: Safe Power Supply State: Safe Thermal State: Safe Security Status: None OEM Information: 0x00000000 Height: Unspecified Number Of Power Cords: 1 Contained Elements: 0

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• Selenium server causes crazy load on server - how to prevent?

  - by Eric

  I'm running this linux: Linux host.themepark.com 2.6.32-220.4.1.el6.x86_64 #1 SMP Tue Jan 24 02:13:44 GMT 2012 x86_64 x86_64 x86_64 GNU/Linux And I run the Selenium stand-alone server on my box with this command: java -jar /home/l/cron/selenium-server-standalone-2.24.1.jar > /logs/selenium.log 2>&1 & Here's the problem: as soon as I do that, the server load starts skyrocketing. I even went back and downloaded older versions of the Selenium server, but same results with 2.23.1, 2.23.0, and 2.19.0. Note that the server load starts going nuts before I issue ANY commands to Selenium or do anything else. All I'm doing is firing up the server, per the command above. This used to work perfectly on my server without causing massive server load, so something has changed, but I'm not sure what. My server is a managed VPS so I don't know if there is some kind of auto-update script that kicked in or what... but it's a problem. (Incidentally, even though the server load climbs like crazy, everything still works: after firing up Selenium, my server creates a screen with Xvfb so Firefox will be happy, then a PHP script talks to Selenium to do what it needs to do before shutting everything down. It takes a LONG time, and the load gets all the way up to 8 [!!!] before it is finished, which kills my web server and makes the main site horribly unresponsive... but it does get everything done.) Any suggestions for what is going on, why it's started doing this and/or, most importantly, how I can make Selenium not kill the server when it starts up... would be GREATLY appreciated!

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• Vserver: secure mails from a hacked webservice

  - by lukas

  I plan to rent and setup a vServer with Debian xor CentOS. I know from my host, that the vServers are virtualized with linux-vserver. Assume there is a lighthttpd and some mail transfer agent running and we have to assure that if the lighthttpd will be hacked, the stored e-mails are not readable easily. For me, this sounds impossible but may I missed something or at least you guys can validate the impossibility... :) I think basically there are three obvious approaches. The first is to encrypt all the data. Nevertheless, the server would have to store the key somewhere so an attacker (w|c)ould figure that out. Secondly one could isolate the critical services like lighthttpd. Since I am not allowed to do 'mknod' or remount /dev in a linux-vserver, it is not possible to setup a nested vServer with lxc or similar techniques. The last approach would be to do a chroot but I am not sure if it would provide enough security. Further I have not tried yet, if I am able to do a chroot in a linux-vserver...? Thanks in advance!

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• Kickstart installation from USB -- Kickstart location

  - by dooffas

  After managing to get a Fedora ISO to rebuild successfully (for a USB stick) after adding a kickstart file (http://serverfault.com/questions/548405/), I now have an issue with locating the kickstart file on the USB media. When this is done from a CDROM you can simply kickckstart by adding this parameter to boot: linux ks=cdrom This will kickstart (providing the kickstart file is named ks.cfg and is in the root of the disk). Now, obviously this will be different for the USB drive, so from my research, I assumed that this line would do the job: linux ks=hd:sdb1:/ks.cfg Evidently this does not work. I get an error informing me this drive is already mounted and cannot be remounted. EDIT: Actual error message: mount: /dev/sdb1 is already mounted or /run/install/tmpmnt0 busy Warning: Can't get kickstart from /dev/sdb1:/ks.cfg To test that the syntax was correct I placed the kickstart file on another USB stick and loaded the same command to grab ks.cfg from the new location: linux ks=hd:sdc1:/ks.cfg This does work (providing USB sticks are mounted in order, boot - sdb1, kickstart - sdc1). The install will kickstart and complete the install with no issue. Obviously having to use 2 pen drives is somewhat frustrating and unreliable. Is there a way around this?

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• Adding PHP to Apache

  - by user528451

  Where I work, we use ancient technology that belongs in a museum. Further I have to get everything done through system admins. They are telling me in order to get PHP, they will need to upgrade the operating system as well as the Apache version. lcas100[67]% uname -a Linux lcas100 2.6.9-11.ELsmp #1 SMP Fri May 20 18:26:27 EDT 2005 i686 i686 i386 GNU/Linux lcas100[68]% cat /etc/*-release LSB_VERSION="1.3" Red Hat Enterprise Linux AS release 4 (Nahant) lcas100[75]% /ots/apache/bin/httpd -v Server version: Apache/1.3.31 (Unix) Server built: Nov 3 2004 18:47:31 This doesn't make sense to me because apparently Apache 1.3.x supports PHP: http://php.net/manual/en/install.unix.apache.php Furthermore, we have another machine that runs PHP and is running the exact same OS and OS version. The reason I want it on the former machine is because it is mounted on a different file system. Lastly they tell me that all software the Apache webserver runs will need to be reinstalled/recompiled (assuming an Apache upgrade WAS needed). I am not even sure about this. Are they full of it? Thanks

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• Get details / solve issue with a kernel panic?

  - by Joseph

  I have a Lenovo T430 running Linux Mint 13 (MATE): joseph:~$ uname -a Linux joseph-T430-LM 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I installed Mint immediately after getting the laptop about two weeks ago, and have noticed that about once a day, the computer will completely freeze up- I can't use Ctrl+Alt+Backspace to restart X, I can't use Ctrl+Alt+F1 to get a text only terminal, can't move mouse, can't type, and if any music was playing it just gets stuck in about a 1-second loop. There is a Windows partition, but I haven't had any issues in Windows. I couldn't find a common thread between the freezes, they were seemingly random (sometimes right after I clicked the mouse, sometimes not; sometimes with Pandora/flash being used, sometimes not, etc). I assume they're kernel panics since it completely locks up, but the laptop doesn't have a capslock or scroll lock LED. It is on a dock and I do have a USB keyboard, but the scroll lock/capslock lights do not flash when it happens (not sure if this is indicating its not a kernel panic, or if the kernel panic just wouldn't illuminate the LEDs on a usb keyboard attached to a laptop dock). This was annoying but not terrible. However, I've found a way to reproduce it. I have a particular CSV file that when I open up in LibreOffice Calc and scroll around, the same thing happens- complete lock up. I really need to use this file, so I'd like to fix the issue, but at the least it's given me a test case to work with. So, having a case where I can cause this issue, what can I do to better find out what's going on? I've looked in /var/log/syslog but haven't found anything seemingly useful. Any thoughts?

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• How install ImageMagic 6.6.2 on Ubuntu 10.04 (lucid)

  - by Svyatoslavik

  How install ImageMagic 6.6.2 on Ubuntu 10.04 (lucid) Problem that lucid have old ImageMagic version(6.5.2) Its very important because me need work with SVG grafics, In my local pc I have ubuntu 11.04 and ImageMagic 6.6.2 and all work fine, In server I have 6.5... and I have problem. Reinstall ubuntu to 11.* this is no solution. I tried change /etc/apt/source.list from ubuntu 10.04 (lucid) to list from ubuntu 11.04 (natty) and update ImageMagic. After this action I have ImageMagic 6.6.2 (I looked phpinfo()) but ImageMagick is not work now. If I try do any action I get error: [error] 8996#0: *19983 FastCGI sent in stderr: "PHP Fatal error: Uncaught exception 'ImagickException' with message 'no decode delegate for this image format `/tmp/magick-XXnYKWKC' @ error/constitute.c/ReadImage/532' How it fix? Or how return to old version imagemagick? Problem if I try install from sources: /tmp/image/ImageMagick-6.7.2-7# ./configure configuring ImageMagick 6.7.2-7 checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking whether build environment is sane... yes checking for a BSD-compatible install... /usr/bin/install -c checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking for style of include used by make... GNU checking for gcc... gcc checking whether the C compiler works... no configure: error: in `/tmp/image/ImageMagick-6.7.2-7': configure: error: C compiler cannot create executables See `config.log' for more details /tmp/image/ImageMagick-6.7.2-7#

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• what is uninstall procedure for software installed via "make install" on CentOS 6.2

  - by gkdsp

  I installed OCILIB on my CentOS 6.2 server some time ago, and now I want to install a newer version. The vendor requires an uninstall, but doesn't provide instructions. I'm guessing that's because it's trivial for people with a Linux background. http://orclib.sourceforge.net/doc/html/group_g_install.html If I installed this software using: step 1: # ./configure --with-oracle-headers-path=/usr/include/oracle/11.2/client64 --with-oracle-lib-path=/usr/lib/oracle/11.2/client64/lib step 2: # make step 3: # su root step 4: # make install step 5: # gcc -g -DOCI_IMPORT_LINKAGE -DOCI_CHARSET_ANSI -L/usr/lib/oracle/11.2/client64/lib -lclntsh -L/usr/local/lib -locilib conn.c -o conn How would I go about uninstalling this? I tried following this http://www.cyberciti.biz/faq/delete-uninstall-software-linux-commands/ but nothing was found on my disk using rpm -qa *oci* or yum list *oci*. Maybe since it wasn't installed with yum or rpm then I shouldn't expect either of these to find it. Are there generic instructions for uninstalling software on Linux that I could use, or do the instructions really depend on the specific software? Any help much appreciated.

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• NATing IPv4 while routing IPv6

  - by Hugo

  I've the following setup: client(s) <---> (eth0) router (eth1) <---> wan I have a static IPv4 address and a /48 IPv6 address block. I need to connect all the clients to (wan). Each client will have it's own public IPv6. Meanwhile, I need to NAT those same clients over to (wan). Everything IPv4-related and the NAT are working fine. The IPv6 communication to/from (eth0)<-(clients) works fine, as does the IPv6 communication from (eth1)<-(wan) works fine. To provide IPv6 to all my clients, I've thought of too choices: Having the router as a gateway, which different IP on each interface. This sounds like I need to tell my ISP to route the entire block through that single IP, so it's not really an option. Transparently pass IPv6 packets to/from eth0<-eth1, so all clients can communicate with the upstream gateway (I would actually have a switch here if it weren't for the need to remain IPv4 compatible). So, since I've opted for the second choice, I'm in doubt: How can I pass all IPv6 traffic from eth0 to eth1 transparently? What I need is a level 3 bridge, but linux's bridgeutils create a level 2 bridge (which would bridge ipv4 as well, and I can't have that). This is a DD-WRT device, but it's pretty much an embeded linux, so most suggestions that would work on linux are welcome. Thanks.

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• How to install subversion on 1&1 server with windows?

  - by Miles M.

  I would like to start using Unfuddle for my project on 1&1 server. I never used subversion and core control before. So, I read a lot of documentation about it but each time, I get lost at the very beginning : I've downloaded the latest version of subversion. But on every tutorial, the way to follow is different. First I sae, on a lot of tuts, that you have to enter command lines. Is that ONLY for Linux ? Like here : http://chwalisz.org/2007/08/05/subversion-on-11-shared-hosting/ I also find something completely different on some website, I think (correct me if I'm wrong) it is the Windows tuts, deeply different frm the linu one. So I found that : http://www.codinghorror.com/blog/2008/04/setting-up-subversion-on-windows.html http://geekswithblogs.net/emanish/archive/2006/06/14/81905.aspx http://better-scm.shlomifish.org/subversion/Svn-Win32-Inst-Guide.html And I don t understand : Do I still have to put the sibversion file on the server ? Do I have to install Apach ? where, on my computer or on my server ? I'm working ith WampServer so I thing I have already Apach installed right ? When they say it is for Windows, do they mean it is for windows servers or for your own OS ? 'Cause my servers are on linux. How could I install Subversion on a 1&1 linux server from my W7 OS computer ? Thanks, that's a lot of question but that realle messy in my mind, I can't find something clear ..

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