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  • Property and Encapsulation

    - by Lijo
    Hi Team, Following is a question regarding using Properties in class. I am software engineer with 3 years of experience. I have been using public properties instead of exposing member variables publically. Many a people told that this approach helps in encapsulation. I don’t realize any encapsulation advantage by making it a property. While discussions, I came to know that not many people knows about the real reason for going for Property. They just do it as part of coding standard. Can someone clearly explain how Property is better than public member variable? How it improves encapsulation? Thanks Lijo

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  • The volume "filesystem root" has only 0 bytes disk space remaining?

    - by radek
    I installed 11.10 ~two weeks ago and run into some strange troubles recently. Installation was on brand new laptop with clear 128GB SSD. I opted for encrypting home directory. Apart from that I accepted defaults during the installation. There is no other OS on my laptop. I had circa 40GB in use when (for the third time) I got to see this very unpleasant window: Twice situation was pretty bad and whole system slowed down considerably. After reboot I could not login to graphical interface (with an error message informing about insufficient space) and had to remove some files from command line first. Third time I still managed to quickly delete some files and it helped. My laptop is mainly work environment: so no torrents, games, just two movies. Only media filling space are ~20GB of pictures, and bunch of pdfs. Working mostly on PostgreSQL & PostGIS, GeoServer and QGIS recently. Although I had lots of opportunities to test and practice my backups I would be extremely grateful if somebody could point me to any potential solutions to this problem. My laptop has been bought just before I installed Ubuntu, and it came without OS. Could that be hardware issue? Or is the encrypted home causing me headaches? Thanks for help! Update: As suggested by @maniat1k, here is current output of fdisk -l: WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sda1 1 312581807 156290903+ ee GPT

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  • AskUbuntu Add-on for Firefox, Opera and Chrome

    - by lovinglinux
    Screenshots Firefox Opera Chrome About The extension, called AskUbuntu Add-on, allows to easily track user info and questions from askubuntu.com. This extension displays user reputation and badges in the toolbar, provides an easy access menu to unanswered questions , user questions, favorites and user tags. It has an update checker that alerts when there is new activity in the user account or unanswered questions. The configuration options allow to disable alerts, limit the number of items displayed in the menu, hide user info and control the frequency of updates. There is also an option to store data temporarily if the browser is on private mode. License Free, open source released under: GNU General Public License v3 [Firefox] Apache License, Version 2.0 [Opera and Chrome] Download Home page: http://www.webgapps.org/addons/askubuntu GitHub downloads: http://github.com/webgapps/askubuntu/downloads Mozilla gallery: https://addons.mozilla.org/en-US/firefox/addon/242568/ Opera gallery: https://addons.opera.com/addons/extensions/details/askubuntu-add-on... Google gallery: https://chrome.google.com/extensions/detail/hamgohmiimamjpabgncmklojoibjknon Platform Firefox 3.5 to 4.0b8pre Opera 11.0 Chrome 5.0.316.0 [OS independent] Contact Developed by lovinglinux Code Javascript, HTML (Opera and Chrome) and XUL (Firefox) Source code at http://github.com/webgapps/askubuntu Note: some Gnome users might experience diminished functionality if their Firefox does not show icons in menus, since the icons are indicators of new activity. To solve this problem visit: http://askubuntu.com/questions/8586/where-is-the-gnome-option-to-display-icons-in-menus

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  • How can I install a 32bit python on 64 bit Ubuntu

    - by moose
    I am using Ubuntu 10.10 (Linux pc07 2.6.35-27-generic #48-Ubuntu SMP Tue Feb 22 20:25:46 UTC 2011 x86_64 GNU/Linux) and the default python package (Python 2.6.6). I would like to install python-psyco to improve the performance of one of my scripts, but only python-psyco-doc is available for 64 bit. I tried a virtual machine, but the the performance boost is much less on the virtual machine than on a "real" installed 32-bit Ubuntu. So my question is: How can I install a 32Bit Python with psyco on my 64Bit Ubuntu machine? edit: I've found this article and made this: Download "Python 2.7.1 bzipped source tarball" from http://python.org/download/ Go in the directory where you decompressed "Python 2.7.1" $ OPT=-m32 LDFLAGS=-m32 ./configure --prefix=/opt/pym32 $ make But I got this error: gcc -pthread -m32 -Xlinker -export-dynamic -o python \ Modules/python.o \ libpython2.7.a -lpthread -ldl -lutil -lm libpython2.7.a(posixmodule.o): In function `posix_tmpnam': /home/moose/Downloads/Python-2.7.1/./Modules/posixmodule.c:7346: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp' libpython2.7.a(posixmodule.o): In function `posix_tempnam': /home/moose/Downloads/Python-2.7.1/./Modules/posixmodule.c:7301: warning: the use of `tempnam' is dangerous, better use `mkstemp' Segmentation fault make: *** [sharedmods] Fehler 139 edit2: Now I've found http://indefinitestudies.org/2010/02/08/how-to-build-32-bit-python-on-ubuntu-9-10-x86_64/ and it seems like this worked: $ cd Python-2.7.1 $ CC="gcc -m32" LDFLAGS="-L/lib32 -L/usr/lib32 \ -Lpwd/lib32 -Wl,-rpath,/lib32 -Wl,-rpath,/usr/lib32" \ ./configure --prefix=/opt/pym32 $ make $ sudo make install But installing psyco didn't work: Download the lastest snapshot: http://psyco.sourceforge.net/download.html Extract it and go into the folder $ python setup.py install This error appeared: PROCESSOR = 'ivm' running install running build running build_py running build_ext building 'psyco._psyco' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -DALL_STATIC=1 -Ic/ivm -I/usr/include/python2.6 -c c/psyco.c -o build/temp.linux-x86_64-2.6/c/psyco.o In file included from c/psyco.c:1: c/psyco.h:9: fatal error: Python.h: Datei oder Verzeichnis nicht gefunden compilation terminated. error: command 'gcc' failed with exit status 1

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  • Gnome 3 freezes on logon on samsung RV 509

    - by Noufal
    I have a Samsung NP-RV509 A0FIN and I tried to install GNU/Linux with gnome 3.2 on it. I tried Fedora 16, Ubuntu 11.10 and Linux Mint 12 RC, but with no success. All of these freezes upon login into gnome shell. I think it is the problem with graphics driver, so I tried xorg-edgers ppa on my last installation, ie., Linux Mint. I also tried various intel graphics packages listed on Synaptic package manager, but no success again. My device configuration is as follows(obtained from windows 7): More details about my computer Component Details Subscore Base score Processor Intel(R) Pentium(R) CPU P6200 @ 2.13GHz 5.6 4.6 Memory (RAM) 4.00 GB 7.2 Graphics Intel(R) HD Graphics 4.6 Gaming graphics 1562 MB Total available graphics memory 5.2 Primary hard disk 12GB Free (50GB Total) 5.9 Windows 7 Ultimate System -------------------------------------------------------------------------------- Manufacturer SAMSUNG ELECTRONICS CO., LTD. Model RV409/RV509/RV709 Total amount of system memory 4.00 GB RAM System type 32-bit operating system Number of processor cores 2 64-bit capable Yes Storage -------------------------------------------------------------------------------- Total size of hard disk(s) 418 GB Disk partition (C:) 12 GB Free (50 GB Total) Media drive (D:) CD/DVD Disk partition (E:) 526 MB Free (191 GB Total) Disk partition (F:) 101 GB Free (177 GB Total) Graphics -------------------------------------------------------------------------------- Display adapter type Intel(R) HD Graphics Total available graphics memory 1562 MB Dedicated graphics memory 64 MB Dedicated system memory 0 MB Shared system memory 1498 MB Display adapter driver version 8.15.10.2202 Primary monitor resolution 1366x768 DirectX version DirectX 10 Network -------------------------------------------------------------------------------- Network Adapter Realtek PCIe GBE Family Controller Network Adapter Broadcom 802.11n Network Adapter Network Adapter Microsoft Virtual WiFi Miniport Adapter Notes -------------------------------------------------------------------------------- The gaming graphics score is based on the primary graphics adapter. If this system has linked or multiple graphics adapters, some software applications may see additional performance benefits. Any help is appreciated, and thanks in advance.

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  • Ubuntu 12.04 LTS Wireless Asus USB-N53 (rt3572sta) driver installation issue

    - by Jake Thompson
    My purchase of the Asus USB-N53 just came in today and I spent several hours Googling and researching drivers for this device. When I first plugged the device in it connected fine to my open system, WEP, DHCP configured access point. I opened Google Chrome and a few pages loaded, everything seemed fine. 30 seconds later... Boom! It disconnected and showed attempts to reconnect and asked for the WEP key and just showed a state of infinite connection time until it asked me for the password again. I'm using amd64 (64 bit Ubuntu desktop 12.04 LTS) The official driver can be found here although I had no luck with it. lsusb: Bus 003 Device 002: ID 0b05:179d ASUSTek Computer, Inc. uname -a Linux Jake 3.2.0-31-generic #50-Ubuntu SMP Fri Sep 7 16:16:45 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux ----------------------------------------------------------------------------------Solved: I must of done something wrong when I originally installed the latest drivers from the chipset manufacturers website. I tried reinstalling and did modprobe rt3572sta and waited maybe 10 minutes??? and I connected then I rebooted and everything seems to be working so far. What I did do before hand is unplug the device and typed into the terminal (once for every source I attempted to install): cd '<directory of the driver source>' make uninstall make clean Then I went into the 2.5.0.0 directory and installed that with make make install Then I typed modprobe rt3572sta This was all in superuser. For those who don't know: sudo su

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  • How do I install 32-bit perl-tgicl 2.1.1?

    - by Daniel Fernandez
    I'm trying to install a .deb and I need some packages but they are not on the synaptic. How can I install this packages lib32z1 libc6-i386 TGICL$ sudo dpkg -i perl-tgicl_2.1-1_all.deb Selecting previously deselected package perl-tgicl. (Reading database ... 168515 files and directories currently installed.) Unpacking perl-tgicl (from perl-tgicl_2.1-1_all.deb) ... dpkg: dependency problems prevent configuration of perl-tgicl: perl-tgicl depends on lib32z1 (>= 1:1.1.4); however: Package lib32z1 is not installed. perl-tgicl depends on libc6-i386 (>= 2.3); however: Package libc6-i386 is not installed. perl-tgicl depends on libfile-homedir-perl (>= 0.10); however: Package libfile-homedir-perl is not installed. perl-tgicl depends on libfile-spec-perl (>= 0.10); however: Package libfile-spec-perl is not installed. dpkg: error processing perl-tgicl (--install): dependency problems - leaving unconfigured Processing triggers for man-db ... Errors were encountered while processing: perl-tgicl My OS: $ uname -a Linux 3.0.0-12-generic-pae #20-Ubuntu SMP Fri Oct 7 16:37:17 UTC 2011 i686 i686 i386 GNU/Linux

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  • Copyrights concerning code snippets and larger amounts of code

    - by JustcallmeDrago
    I am designing a public code repository. Users will be allowed to post and edit whatever amount of code they want, from code snippets to entire multi-file projects. I have a few major legal concerns about this: Not getting sued/shut down - I feel the site would be a much easier target than tracking down an individual user to sue. I have looked around a bit and see links to legal info in the footer of each page is common. What specific things should I do--and what does does a site such as YouTube (which I see copyrighted material on all the time) do--for protection? Citing sources and editing sourced code - If a user wants to post code that isn't theirs, what concerns/safeguards should I have? Will a link suffice, and what do I need further to allow the code to be edited (to improve it for example)? What can happen if a user posts copyrighted code without citing it? Large chunks of code - What legal differences should I look out for as the amount grows? Not having a mess of licenses for the site - I would like to have a single license (like RosettaCode) that keeps things simple for interaction on the site. I want the code to be postable and editable. I have looked into StackOverflow's CreativeCommons license a little and it says that If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. And on RosettaCode: All software found on Rosetta Code should be considered potentially hazardous. Use at your own risk. Be aware that all code on Rosetta Code is under the GNU Free Documentation License, as are any edits made by contributors. See Rosetta Code:Copyrights for details. What other licenses are like this? Commercializing the site - In what ways can I and can't I make money off of a site that contains code like this? All code will be publicly visible. Initial thoughts are having ads or making money by charging for advanced features.

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  • Davicom Semiconductor, Inc. 21x4x DEC-Tulip not detected by Wireshark but IP operational

    - by deepsix86
    Recently flipped to Ubuntu 11.10 on a Dell 4300 (Intel). Getting IP address and no issues (ping/surf) but Wireshark unable to detect eth0 interface. I see references in forums to blacklist tulip but looks like I am running dmfe. Not sure if the blacklist is required and where to go from here. Maybe Driver update? Got a little lost looking in that area. Some h/w details below (IP/MAC/HOSTNAME removed) Linux xxxxxx 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 17:34:21 UTC 2012 i686 i686 i386 GNU/Linux network-admin (HOSTS TAB) does not list eth0, only loopback and bunch of IPv6 interfaces ifconfig eth0 Link encap:Ethernet HWaddr xxxxxxxx inet addr:192.168.x.xx Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: xxxxxxxxxxx 64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:36662 errors:0 dropped:1 overruns:0 frame:0 TX packets:24975 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:42115779 (42.1 MB) TX bytes:3056435 (3.0 MB) Interrupt:18 Base address:0xe800 lspci 02:09.0 Ethernet controller: Davicom Semiconductor, Inc. 21x4x DEC-Tulip compatible 10/100 Ethernet (rev 31) Subsystem: Device 4554:434e Flags: bus master, medium devsel, latency 64, IRQ 18 I/O ports at e800 [size=256] Memory at fe1ffc00 (32-bit, non-prefetchable) [size=256] Expansion ROM at fe200000 [disabled] [size=256K] Capabilities: [50] Power Management version 2 Kernel driver in use: dmfe Kernel modules: dmfe hwinfo --netcard 20: PCI 209.0: 0200 Ethernet controller [Created at pci.318] Unique ID: rBUF.0NgK5ZS9c0D Parent ID: 6NW+.siohrLUzzI4 SysFS ID: /devices/pci0000:00/0000:00:1e.0/0000:02:09.0 SysFS BusID: 0000:02:09.0 Hardware Class: network Model: "Davicom 21x4x DEC-Tulip compatible 10/100 Ethernet" Vendor: pci 0x1282 "Davicom Semiconductor, Inc." Device: pci 0x9102 "21x4x DEC-Tulip compatible 10/100 Ethernet" SubVendor: pci 0x4554 SubDevice: pci 0x434e Revision: 0x31 Driver: "dmfe" Driver Modules: "dmfe" Device File: eth0 I/O Ports: 0xe800-0xe8ff (rw) Memory Range: 0xfe1ffc00-0xfe1ffcff (rw,non-prefetchable) Memory Range: 0xfe200000-0xfe23ffff (ro,non-prefetchable,disabled) IRQ: 18 (61379 events) HW Address: 00:08:a1:01:35:70 Link detected: yes Module Alias: "pci:v00001282d00009102sv00004554sd0000434Ebc02sc00i00" Driver Info #0: Driver Status: dmfe is active Driver Activation Cmd: "modprobe dmfe" Config Status: cfg=new, avail=yes, need=no, active=unknown Attached to: #11 (PCI bridge)

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  • I can't add PPA repository behind the proxy (with @ in the username)

    - by kenorb
    I'm trying to add the ppa repository (as a root) with the following command: export HTTP_PROXY="http://[email protected]:[email protected]:8080" add-apt-repository ppa:nilarimogard/webupd8 Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in <module> ppa_info = get_ppa_info_from_lp(user, ppa_name) File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 84, in get_ppa_info_from_lp curl.perform() pycurl.error: (56, 'Received HTTP code 407 from proxy after CONNECT') Unfortunately it doesn't work. Looks like curl is connecting to the proxy, but the proxy says that Authentication is Required. I've tried with .curlrc, http_proxy env instead, but it doesn't work. strace -e network,write -s1000 add-apt-repository ppa:nilarimogard/webupd8 socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 4 socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(8080), sin_addr=inet_addr("165.x.x.232")}, 16) = -1 EINPROGRESS (Operation now in progress) getsockopt(4, SOL_SOCKET, SO_ERROR, [0], [4]) = 0 getpeername(4, {sa_family=AF_INET, sin_port=htons(8080), sin_addr=inet_addr("165.x.x.232")}, [16]) = 0 getsockname(4, {sa_family=AF_INET, sin_port=htons(46025), sin_addr=inet_addr("161.20.75.220")}, [16]) = 0 sendto(4, "CONNECT launchpad.net:443 HTTP/1.1\r\nHost: launchpad.net:443\r\nUser-Agent: PycURL/7.22.0\r\nProxy-Connection: Keep-Alive\r\nAccept: application/json\r\n\r\n", 146, MSG_NOSIGNAL, NULL, 0) = 146 recvfrom(4, "HTTP/1.1 407 Proxy Authentication Required\r\nProxy-Authenticate: BASIC realm=\"proxy\"\r\nCache-Control: no-cache\r\nPragma: no-cache\r\nContent-Type: text/html; charset=utf-8\r\nProxy-Connection: close\r\nSet-Cookie: BCSI-CS-91b9906520151dad=2; Path=/\r\nConnection: close\ Maybe it's because there is @ sign in the username? Wget works with proxy fine. Related: How do I add a repository from behind a proxy? Environment Ubuntu 12.04 curl 7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3 curl Features: GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL libz TLS-SRP

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  • How do I get KLIPS or NETKEY on 11.10 server?

    - by Incognito
    I'm attempting to run OpenSWAN on my Ubuntu11.10 server. All I've done so far is install openswan from the package manager and attempt to set up conf files. However, IPSec support seems to be broken, thus OpenSWAN can't do it's thing. Attempt to start IPSec $ sudo ipsec setup --start ipsec_setup: Starting Openswan IPsec 2.6.28... ipsec_setup: No KLIPS support found while requested, desperately falling back to netkey ipsec_setup: Even NETKEY support is not there, aborting Verify IPSec $ sudo ipsec verify Checking your system to see if IPsec got installed and started correctly: Version check and ipsec on-path [OK] Linux Openswan U2.6.28/K(no kernel code presently loaded) Checking for IPsec support in kernel [FAILED] Checking that pluto is running [FAILED] whack: Pluto is not running (no "/var/run/pluto/pluto.ctl") Checking for 'ip' command [OK] Checking for 'iptables' command [OK] Opportunistic Encryption Support [DISABLED] IPSec Version $ sudo ipsec version Linux Openswan U2.6.28/K(no kernel code presently loaded) See `ipsec --copyright' for copyright information. Linux build: $ uname -a Linux metabox 2.6.18-028stab092.1 #1 SMP Wed Jul 20 19:47:12 MSD 2011 x86_64 x86_64 x86_64 GNU/Linux How can I go about correcting this problem with IPSec? This is a hosted VPS, and I'd like to avoid a kernel rebuild if I can find some other alternative.

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  • RAID5 over LVM on Ubuntu Server 12.04.3

    - by April Ethereal
    I'm trying to create a RAID5 software array using LVM. I use VirtualBox as I'm only learning how LVM works. So I've created 4 virtual SCSI drives and then did the following: pvcreate /dev/sd[b-e] vgcreate /dev/sd[b-e] raid5_vg lvcreate --type raid5 -i 3 -L 1G -n raid_lv raid5_vg However, I get an error after the last command: WARNING: Unrecognised segment type raid5 Using default stripesize 64.00 KiB Rounding size (256 extents) up to stripe boundary size (258 extents) Cannot update volume group raid5_vg with unknown segments in it! So it looks like raid5 is not a valid segment type. "lvm segtypes" also doesn't contain 'raid5' entry: root@ubuntu-lvm:~# lvm segtypes striped zero error free snapshot mirror So my question is - how could I create RAID5 logical volume using LVM only? It seems that it is possible, I saw a few references (not for Ubuntu, unfortunately) for RedHat and Gentoo systems. I don't want to use mdadm for now, until I find out that it is mandatory. Some info about my system is below: root@ubuntu-lvm:~# uname -a Linux ubuntu-lvm 3.8.0I use Ubuntu Server 12.04.3 (i686)-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 15:31:16 UTC 2013 i686 i686 i386 GNU/Linux root@ubuntu-lvm:~# dpkg -l | grep lvm ii lvm2 2.02.66-4ubuntu7.3 The Linux Logical Volume Manager Thanks.

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  • GPLv2 - Multiple AI chess engines to bypass GPL

    - by Dogbert
    I have gone through a number of GPL-related questions, the most recent being this one: http://stackoverflow.com/questions/3248823/legal-question-about-the-gpl-license-net-dlls/3249001#3249001 I'm trying to see how this would work, so bear with me. I have a simple GUI interface for a game of Chess. It essentially can send/receive commands to/from an external chess engine (ie: Tong, Fruit, etc). The application/GUI is similar in nature to XBoard ( http://www.gnu.org/software/xboard/ ), but was independently designed. After going through a number of threads on this topic, it seems that the FSF considers dynamically linking against a GPLv2 library as a derivative work, and that by doing so, the GPLv2 extends to my proprietary code, and I must release the source to my entire project. Other legal precedents indicate the opposite, and that dynamic linking doesn't cause the "viral" effect of the GPL to propagate to my proprietary code. Since there is no official consensus that can give a "hard-and-fast" answer to the dynamic linking question, would this be an acceptable alternative: I build my chess GUI so that it sends/receives the chess engine AI logic as text commands from an external interface library that I write The interface library I wrote itself is then released under the GPL The interface library is only used to communicate via a generic text pipe to external command-line chess engines The chess engine itself would be built as a command-line utility rather than as a library of any sort, and just sends strings in the Universal Chess Interface of Chess Engine Communication Protocol ( http://en.wikipedia.org/wiki/Chess_Engine_Communication_Protocol ) format. The one "gotcha" is that the interface library should not be specific to one single GPL'ed chess engine, otherwise the entire GUI would be "entirely dependent" on it. So, I just make my interface library so that it is able to connect to any command-line chess engine that uses a specific format, rather than just one unique engine. I could then include pre-built command-line-app versions of any of the chess engines I'm using. Would that sort of approach allow me to do the following: NOT release the source for my UI Release the source of the interface library I built (if necessary) Use one or more chess engines and bundle them as external command-line utilities that ship with a binary version of my UI Thank you.

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  • OpenSSH 5.9p1 on Ubuntu 11.10

    - by Michal Burak
    I want to build a deb package with the latest version of openssh from source. Then I want to install it on my machine. I am running: Linux Ubuntu-1110-oneiric-64-minimal 3.0.0-12-server #20-Ubuntu SMP Fri Oct 7 16:36:30 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux To achieve my goal I do: wget ftp://ftp.openbsd.com/pub/OpenBSD/OpenSSH/portable/openssh-5.9p1.tar.gz wget ftp://ftp.openbsd.com/pub/OpenBSD/OpenSSH/portable/openssh-5.9p1.tar.gz.asc gpg openssh-5.9p1.tar.gz.asc apt-get build-dep openssh-server openssh-client apt-get source openssh-server cd openssh-5.8p1/ uupdate -v 5.9p1 /root/packages/openssh/openssh-5.9p1.tar.gz cd ../openssh-5.9p1 dpkg-buildpackage -us -uc -nc But I get an error: make[1]: Entering directory `/root/packages/openssh/openssh-5.9p1' rm -f debian/tmp/etc/ssh/sshd_config dh_install -Nopenssh-client-udeb -Nopenssh-server-udeb --fail-missing cp: cannot stat `debian/tmp/usr/bin/ssh-vulnkey': No such file or directory dh_install: cp -a debian/tmp/usr/bin/ssh-vulnkey debian/openssh-client//usr/bin/ returned exit code 1 make[1]: *** [override_dh_install] Error 2 make[1]: Leaving directory `/root/packages/openssh/openssh-5.9p1' make: *** [binary] Error 2 dpkg-buildpackage: error: debian/rules binary gave error exit status 2 Any ideas what do I do to make this work?

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  • error while loading shared libraries; cannot open shared object file: No such file or directory

    - by glitchyme
    The program evince complains that it can't find libfreetype.so.6; however I clearly have the file and its included in my LD_LIBRARY_PATH; furthermore I have another program which uses libfreetype6 and is able to run just fine. What's going on here? jbud@jb-pc ~> evince evince: error while loading shared libraries: libfreetype.so.6: cannot open shared object file: No such file or directory jbud@jb-pc ~> ldd /usr/bin/evince | grep freetype libfreetype.so.6 => /usr/local/lib/libfreetype.so.6 (0x00007f912179d000) jbud@jb-pc ~> file /usr/local/lib/libfreetype.so.6 /usr/local/lib/libfreetype.so.6: symbolic link to `libfreetype.so.6.11.1' jbud@jb-pc ~> file /usr/local/lib/libfreetype.so.6.11.1 /usr/local/lib/libfreetype.so.6.11.1: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=0x21a4b8005e0c9a42af001b35fb984f4e25efc71c, not stripped jbud@jb-pc ~> echo $LD_LIBRARY_PATH /usr/lib/:/usr/lib64/:/usr/lib/x86_64-linux-gnu/:/usr/local/lib/ jbud@jb-pc ~> ldd jdrive/jstuff/work/personal/noengine/client | grep freetype libfreetype.so.6 => /usr/local/lib/libfreetype.so.6 (0x00007feb5ac89000)

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  • Grub options are not visible on booting on Samsung ATIV Book 9 Lite running Ubuntu 14.04

    - by mjwittering
    I've managed to install Ubuntu 14.04 on my new Samsung ATIV Book 9 Lite ultrabook. After updating some configuratiosn in the UEFI installation was very easy. The only questions and issue I believe I'm still experience is when booting. I believe when the laptop would be displaying the grub boot options I see the following. There is a black screen with a purple border of 10px around the screen. I'd like to know how I can update my system so that I see the grub boot manager. I've run these commands: sudo cat /etc/default/grub # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" The command was not possible, sudo efibootmgr.

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  • Which Ubuntu version to use on a MAXDATA laptop Eco 3100X ? with this system info

    - by Erjet Malaj
    i am speaking as new ubuntu user, i just have installed ubuntu 10.04 on my laptop, but is running very slow... So i am here to ask you a question: WHich ubuntu version can fit for my laptop MAXDATA Eco 3100x, . My Laptop System Information are: SYSTEM INFORMATION Running Ubuntu Linux, the Ubuntu 10.04 (lucid) release. GNOME: 2.30.2 (Ubuntu 2010-06-25) Kernel version: 2.6.32-40-generic (#87-Ubuntu SMP Mon Mar 5 20:26:31 UTC 2012) GCC: 4.4.3 (i486-linux-gnu) Xorg: unknown (25 February 2012 06:59:39AM) (25 February 2012 06:59:39AM) Hostname: lotus-laptop Uptime: 0 days 1 h 6 min CPU INFORMATION GenuineIntel, Intel(R) Pentium(R) 4 CPU 2.40GHz Number of CPUs: 1 CPU clock currently at 2390.561 MHz with 512 KB cache Numbering: family(15) model(2) stepping(7) Bogomips: 4781.12 Flags: fpu vme de pse tsc msr pae mce cx8 mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe up pebs bts cid MEMORY INFORMATION Total memory: 228 MB Total swap: 455 MB STORAGE INFORMATION SCSI device - scsi0 Vendor: ATA Model: IBM-DJSA-210 SCSI device - scsi1 Vendor: TOSHIBA Model: DVD-ROM SD-C2502 HARDWARE INFORMATION MOTHERBOARD Host bridge Silicon Integrated Systems [SiS] 650/M650 Host (rev 11) PCI bridge(s) Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (AGP) Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (AGP) USB controller(s) Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10) Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10) Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10) Silicon Integrated Systems [SiS] USB 2.0 Controller (prog-if 20) Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10) Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10) Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10) Silicon Integrated Systems [SiS] USB 2.0 Controller (prog-if 20) ISA bridge Silicon Integrated Systems [SiS] SiS962 [MuTIOL Media IO] (rev 04) IDE interface Silicon Integrated Systems [SiS] 5513 [IDE] (prog-if 80 [Master]) Subsystem: Silicon Integrated Systems [SiS] 5513 [IDE] GRAPHIC CARD VGA controller Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter Subsystem: Uniwill Computer Corp Device 5103 SOUND CARD Multimedia controller Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0) Subsystem: Uniwill Computer Corp Device 5203 NETWORK Ethernet controller Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 91) Subsystem: Uniwill Computer Corp Device 5002 Modem Silicon Integrated Systems [SiS] AC'97 Modem Controller (rev a0) Subsystem: Uniwill Computer Corp Device 4003 Thanks you asap. :-) E

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  • Cedarview drivers boot to a blank screen

    - by map7
    I'm following the tutorial following tutorial to get my Intel D2700DC motherboard's graphics working: http://daily.siebler.eu/2012/06/ubuntu-12-04-driver-for-intel-cedarview-atom-n2000-und-d2000-serie/ When I boot I'm getting a blank screen. I followed the tutorial and read all the comments. I've also tried: Install gdm and use this instead of lightdm (ubuntu default) sudo apt-get install gdm Remove previous pae kernel: http://www.liberiangeek.net/2011/11/remove-old-kernels-in-ubuntu-11-10-oneiric-ocelot/ Reboot before adding cedarview packages. Have tried with and without the "video=LVDS-1:d" to GRUB_CMDLINE_LINUX_DEFAULT variable in /etc/default/grub I still get a blank screen. I am plugged into a HD screen through the HDMI and have tried the DVI connector also. I can see the grub menu, then a little of the loading and then 'No signal'. I can still ssh into the box though so it is logging in. lspci -v -s 00:02.0 00:02.0 VGA compatible controller: Intel Corporation Atom Processor D2xxx/N2xxx Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Device 2011 Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at 80100000 (32-bit, non-prefetchable) [size=1M] I/O ports at 20d0 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: pvrsrvkm Kernel modules: cedarview_gfx uname -a Linux test-desktop 3.2.0-35-generic #55-Ubuntu SMP Wed Dec 5 17:45:18 UTC 2012 i686 i686 i386 GNU/Linux

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  • After update, flash plugin playing video too fast or too slow

    - by John H
    Last night I did an update and reboot. After that, I couldn't reliably play any flash videos. They would either go too fast or stutter (as if they were buffering every 2 seconds). This occurs in both Firefox and Chrome, however I'll troubleshoot in Chrome because it's easier to enable/disable plugins at will. With PPAPI enabled (and npapi disabled), flash videos play at 1.5x speeds and audio is scrambled. With NPAPI enabled (and ppapi disabled), flash videos stutter and skip, despite showing a decent buffer. From one old thread, I went into pavucontrol and tried disabling the high def audio controller. I also tried disabling Totem plugin to no affect. Version other details: Linux freshdesk 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/*-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS" Shockwave Flash 11.3 r31 /opt/google/chrome/PepperFlash/libpepflashplayer.so 11.3.31.331 PPAPI (out-of-process) Shockwave Flash Version: 11.2 r202 Location: /usr/lib/adobe-flashplugin/libflashplayer.so Type: NPAP 01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 8400 GS] (rev a2) 01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)

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  • Open source vs commercial game engines

    - by Vanangamudi
    How commercial game accomplsih stunnning graphics with smooth game play? I am a huge die hard fan and follower of GNU Stallman and his philosophies and other Libre people Cmon how wud I miss Linus. but I got to admit commercial games does excellent jobs. One such good example is Assasin's Creed from Ubisoft. It has good quality graphcis and plays smoothly in my Dual core CPU with Nvidia Geforce 8400ES. Rockstar GTA4 has awesome graphcis but it's slower than AC considering the graphics quality tradeoff. Age of Empires from Ensemble studios, does include Massive crowd AI simulation, yet it plays so smoothly with eyecandy graphics and very large weapon sets and different techtree elements on the other hand. Open source games like Glest, 0A.D(still in alpha :) are not so smooth even though they have very restricted abilities? Coming to question: how do game companies achieve such optmizations, or the open source community is not doing optimizations, or there are any propriarity technological elements that benefits only the companies exists huh?? e.g the OpenSubDiv from Pixar just released open to community?? something like that. and why it is hard to implement optimizations? are there any legal restrictions???

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  • symlink for dbus headers

    - by DarenW
    Source code for something that won't compile has the line #include but in real life that header file is in /usr/include/dbus-1.0/ Similarsituation exists for the dbus-c++ package. Why doesn't Ubuntu provide a symlink /usr/include/dbus pointing to the dbus-1.0 directory? Is this an bug in the dbus package? If intended, what it the purpose? Is it a proper fix to add a symlink myself? (Changing the source is not practical - there are many files, and they need to match what other people have.) update: ok, I totally misunderstood the situation, though it still comes down to a problem I think should be solved by a symlink. The dbus directory referred to in the #include statement is a deeper level directory under /usr/include/dbus-1.0/. The real problem is that the file dbus-arch-deps.h appears to be missing, but is actually stored in the weird location /usr/lib/x86_64-linux-gnu/dbus-1.0/include/dbus/ so now - why doesn't ubuntu provide a symlink to this in /usr/include/dbus-1.0/dbus, or actually store it there?

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  • Impossible installing Ubuntu 13.04 in UEFI mode with Windows 8 preinstalled

    - by Lautaro Vergara
    I know this is a dejavu but let me please explain my problem. When booting 13.04 installation media EFI mode get to a black screen with Grub version 2.00-l3ubuntu3 version appears after selecting "install" or "try Ubuntu", there appear error messages: - failure reading sector ... from 'cd0' - you need to load the kernel first I have a Dell Vostro 3560 with Windows 8. I have downloaded and burned ubuntu-13.04-desktop-amd64.iso. Hashes checked. I've booted from the dvd with Secure Boot enabled. The same happens when Secure Boot is disable. When booting with Legacy BIOS, installation starts. I tried Ubuntu without installing and looks OK. BUT, I did not follow the installation because in https://help.ubuntu.com/community/UEFI#Converting_Ubuntu_into_EFI_mode there appears "if the other systems (Windows Vista/7/8, GNU/Linux...) of your computer are installed in EFI mode, then you must install Ubuntu in EFI mode too.", which is the case in my computer. I have read many similar questions and the corresponding answers from people in this forum, but till now I haven't found a solution. Could someone help me on this subject? Thanks in advance!

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  • Crash after plugging in the Logitech H600 wireless transmitter

    - by SneezyDinosaur
    I recently bought the Logitech H600 Wireless Headset. When I plug in the USB wireless transmitter, Ubuntu 12.04 LTS crashes. How does that come and what do you suggest me to do? Same problem here, as soon as the H600 headset is plugged in 12.04 crashes. Relevant snip from /var/log/Xorg.failsafe.log is below, complete log can be found as a gist [ 2676.496] (**) Logitech Logitech Wireless Headset: Applying InputClass "evdev keyboard catchall" [ 2676.496] (II) Using input driver 'evdev' for 'Logitech Logitech Wireless Headset' [ 2676.496] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so [ 2676.496] (**) Logitech Logitech Wireless Headset: always reports core events [ 2676.496] (**) evdev: Logitech Logitech Wireless Headset: Device: "/dev/input/event16" [ 2676.496] (--) evdev: Logitech Logitech Wireless Headset: Vendor 0x46d Product 0xa29 [ 2676.496] (--) evdev: Logitech Logitech Wireless Headset: Found absolute axes [ 2676.496] (--) evdev: Logitech Logitech Wireless Headset: Found absolute multitouch axes [ 2676.496] (--) evdev: Logitech Logitech Wireless Headset: Found keys [ 2676.496] (II) evdev: Logitech Logitech Wireless Headset: Configuring as mouse [ 2676.496] (II) evdev: Logitech Logitech Wireless Headset: Configuring as keyboard [ 2676.496] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.2/2-1.2.2:1.3/input/input16/event16" [ 2676.496] (II) XINPUT: Adding extended input device "Logitech Logitech Wireless Headset" (type: KEYBOARD, id 10) [ 2676.496] (**) Option "xkb_rules" "evdev" [ 2676.496] (**) Option "xkb_model" "pc105" [ 2676.496] (**) Option "xkb_layout" "us" [ 2676.497] (II) evdev: Logitech Logitech Wireless Headset: initialized for absolute axes. [ 2676.497] Backtrace: [ 2676.497] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb7698637] [ 2676.497] 1: /usr/bin/X (0xb7510000+0x18c3ba) [0xb769c3ba] [ 2676.497] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb74ed40c] [ 2676.497] 3: /lib/i386-linux-gnu/libc.so.6 (0xb7155000+0x135d32) [0xb728ad32] [ 2676.497] 4: /usr/bin/X (XIChangeDeviceProperty+0x16c) [0xb7630b0c] [ 2676.497] 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb3f4a000+0x634e) [0xb3f5034e]

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  • How to setup HDMI output on m11x with Nvidia GeForce GT 540M? (Bumblebee) Help?

    - by Alexander Tritan
    I have an Alienware m11x with Optimus Technology. I setup (Fresh Install) Ubuntu 12.04 with bumblebee as below. Please help me set up the HDMI output so that I can connect it to my monitor. $ uname -a Linux ubuntu 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux $ lspci | grep -i vga 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev a1) $ dpkg --get-selections bumblebee install bumblebee-nvidia install $ bumblebeed -version bumblebeed --version bumblebeed (Bumblebee) 3.0 Copyright (C) 2011 The Bumblebee Project Should xrandr normally show HDMI? $ xrandr -q Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192 LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 256mm x 144mm 1366x768 60.0*+ 1360x768 59.8 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) $ cat /etc/X11/xorg.conf Section "ServerLayout" Identifier "Layout0" EndSection Section "Device" Identifier "Device1" Driver "nvidia" VendorName "NVIDIA Corporation" Option "NoLogo" "true" Option "ConnectedMonitor" "DFP" EndSection $ cat /etc/bumblebee/xorg.conf.nvidia Section "ServerLayout" Identifier "Layout0" EndSection Section "Device" Identifier "Device1" Driver "nvidia" VendorName "NVIDIA Corporation" Option "NoLogo" "true" Option "ConnectedMonitor" "DFP" EndSection $ cat /etc/bumblebee/xorg.conf.nouveau Section "ServerLayout" Identifier "Layout0" Screen "Screen0" Option "AutoAddDevices" "true" EndSection Section "Device" Identifier "Device0" Driver "nouveau" EndSection Section "Screen" Identifier "Screen0" Device "Device0" EndSection and finally the biggest config file below: $cat /etc/bumblebee/bumblebee.conf [bumblebeed] VirtualDisplay=:8 KeepUnusedXServer=true ServerGroup=bumblebee TurnCardOffAtExit=false NoEcoModeOverride=false Driver= [optirun] VGLTransport=proxy AllowFallbackToIGC=false PMMethod=none [driver-nvidia] KernelDriver=nvidia-current Module=nvidia PMMethod=none LibraryPath=/usr/lib/nvidia-current:/usr/lib32/nvidia-current XorgModulePath=/usr/lib/nvidia-current/xorg,/usr/lib/xorg/modules XorgConfFile=/etc/bumblebee/xorg.conf.nvidia [driver-nouveau] KernelDriver=nouveau PMMethod=none XorgConfFile=/etc/bumblebee/xorg.conf.nouveau Any ideas on setting up the Optimus to output to the HDMI T.V.? I want to enable my HDMI with my GeForce GT 540M.

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  • What is the value in hiding the details through abstractions? Isn't there value in transparency?

    - by user606723
    Background I am not a big fan of abstraction. I will admit that one can benefit from adaptability, portability and re-usability of interfaces etc. There is real benefit there, and I don't wish to question that, so let's ignore it. There is the other major "benefit" of abstraction, which is to hide implementation logic and details from users of this abstraction. The argument is that you don't need to know the details, and that one should concentrate on their own logic at this point. Makes sense in theory. However, whenever I've been maintaining large enterprise applications, I always need to know more details. It becomes a huge hassle digging deeper and deeper into the abstraction at every turn just to find out exactly what something does; i.e. having to do "open declaration" about 12 times before finding the stored procedure used. This 'hide the details' mentality seems to just get in the way. I'm always wishing for more transparent interfaces and less abstraction. I can read high level source code and know what it does, but I'll never know how it does it, when how it does it, is what I really need to know. What's going on here? Has every system I've ever worked on just been badly designed (from this perspective at least)? My philosophy When I develop software, I feel like I try to follow a philosophy I feel is closely related to the ArchLinux philosophy: Arch Linux retains the inherent complexities of a GNU/Linux system, while keeping them well organized and transparent. Arch Linux developers and users believe that trying to hide the complexities of a system actually results in an even more complex system, and is therefore to be avoided. And therefore, I never try to hide complexity of my software behind abstraction layers. I try to abuse abstraction, not become a slave to it. Question at heart Is there real value in hiding the details? Aren't we sacrificing transparency? Isn't this transparency valuable?

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