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• Kickstart installation: Unable to read package metadata.

  - by yacov

  I'm trying to install a CentOS OS with kickstart using HTTP as the installation source. The kickstart server and the installed server are both running on VMs on the same machine. after the anaconda system installer starts it fails with the following message: I tried installing two different versions of Centos(5.5 and 5.2), and they both pass a CDROM media test the manual installation provides. The only errors on the kickstart server side are some errors in the httpd log I consider irrelevant: [Sat Mar 12 23:25:19 2011] [error] [client 192.168.1.112] File does not exist: /tftpboot/linux-install/platforms/CentOS5.5/images/product.img [Sat Mar 12 23:25:19 2011] [error] [client 192.168.1.112] File does not exist: /tftpboot/linux-install/platforms/CentOS5.5/disc1 I tried searching the internet for days and haven't found any solution... Does anyone have any idea?

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• Pxe boot ubuntu server - corrupt packages

  - by Stu2000

  I have set up a cobbler pxe boot server and managed to get centos5.8 to fully automatically install. Unfortunately with Ubuntu 12.04-server-i386, it stops mid-way through with a message stating that packages are corrupt. I tried following this tip to unzip the Packages.gz file which results in an empty Packages file with nothing in it. Other people suggested doing a touch command which essentially does the exact same thing, an empty Packages file. That results in me getting a different message that states: Couldn't retrieve dists/precise/restricted/binary-i386/Packages. This may be due to a network..... Does anyone know how to work around this issue? Hitting continue before having made the tip/workaround resulted in ubuntu installing fine, but I need to be able to provide no manual input. Any advice appreciated, Stu

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• Questions about linux root file system.

  - by smwikipedia

  I read the manual page of the "mount" command, at it reads as below: All files accessible in a Unix system are arranged in one big tree, the file hierarchy, rooted at /. These files can be spread out over several devices. The mount command serves to attach the file system found on some device to the big file tree. My questions are: Where is this "big tree" located? Suppose I have 2 disks, if I mount them onto some point in the "big tree", does linux place some "special marks" in the mount point to indicate that these 2 "mount directories" are indeed seperate disks?

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• How to stop jucheck from running? Java won't remember "Check for Updates Automatically" setting.

  - by Ken

  I've installed Java on Windows Vista, and every day I get a Vista security warning asking me if I want to run "jucheck". Apparently this is the Java automatic updater. Well, I don't want it to run on its own, ever. I cancel it, and quit it. I right-click on the taskbar and unclick "Check for Updates Automatically", and then click "Never Check", and "Apply". And yet, it never remembers this setting. If I come back to the "Java Control Panel" right after clicking "OK", the very same box is checked again, all on its own. Is there some way to kill jucheck once and for all? If I simply delete jucheck.exe, will Java (other than the automatic check) still work, and will manual updates still work, and will it stop even trying to update every morning?

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• Removing emails from all mailbox with certain text in subject

  - by Doug Luxem

  So, we had an errant program kick off about 15,000 emails to our users. I have our spam filters now blocking these on the edge until that gets resolved, but now I would like to clean our our users' mailboxes for them. Is there anyway with Exchange 2007 to remove all emails with certain text in the subject line? It would need to be a partial match because the subject changes slightly for each email. I am trying to do this with Forefront's manual scan job + content filter, but it does not seem to like partial matches on the subject.

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• Suppress log messages about 3ware disk temperature changes on CentOS?

  - by Stefan Lasiewski

  I have a number of CentOS 5 servers which use 3ware RAID controllers. These servers are bugging my team with messages about minor temperature changes, like this: Jun 8 12:32:39 HOST smartd[1231]: Device: /dev/twa0 [3ware_disk_01], SMART Usage Attribute: 194 Temperature_Celsius changed from 119 to 118 Jun 8 12:32:39 HOST smartd[1231]: Device: /dev/twa0 [3ware_disk_03], SMART Usage Attribute: 194 Temperature_Celsius changed from 122 to 121 How can I suppress these messages? According to man smartd.conf : To disable any of the 3 reports, set the corresponding limit to 0. Trailing zero arguments may be omitted. By default, all temperature reports are disabled (´-W 0´). On my systems, smartd is reporting about temperature changes by default. I tried a manual approach. In /etc/smartd.conf, I have the following: /dev/twa0 -d 3ware,1 -a -W 0 /dev/twa0 -d 3ware,3 -a -W 0 But this still does not suppress the messages. Since these messages show up in /var/log/messages, LogWatch is sending unnecessary emails every night.

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• Installing 2 DDR3 Sticks in MB with 4 Slots

  - by The Sasquatch

  Hey everyone, I just put together my first system that uses DDR3 memory. The motherboard I got is an ASUS M4A77T/USB3 and it has 4 DDR3 RAM slots. Looking in the manual for the MB it doesn't say anything about how to install the RAM as far as matching the pairs goes. I have 2 4GB sticks of RAM, and whether I put the sticks next to each other (of the 4 RAM slots, there are two blue ones next to each other and 2 black ones next to each other) or space them apart, The BIOS still shows that I have 8GB installed. I have been getting an IRQL_NOT_LESS_OR_EQUAL BSOD error, and have read in some other places that it could be hardware/RAM related. Does the RAM need to go in the A1, A2 slots (different colored but both A), or the A1 B1 slots? (A1 B1 are both the lovely blue color.) Any help would be awesome. THANKS!

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• linksys wap54g default wpa wireless key?

  - by jack

  Hi I wrongly pressed the push button in linksys wap54g web administration. Then it restarted and stated that it's protected with WPA while I first configured it as WEP. So, my old key didn't work. What should I do? Plugin with wire cable to reconfigure it? - which is the only way? coz it was embedded in ceiling. I found no solutions in product manual and google. Thank you.

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• Grep the whole body of a function

  - by dotancohen

  Supposing I know that someFile.php contains the definition for someFunction(). How would I go about displaying the whole body of the function in stdout? If I know that the body is 10 lines long then I would use cat someFile.php | grep -A 10 "function someFunction" [1] but in reality the function could be any arbitrary length. I figured that with sed I could use Vimesque commands such as /function someFunction<Return>/{<Return>% [2] but I can't figure out exactly how to format it. Ideally, the PHPDoc before the function would be output along with the function. Any help or links to the appropriate fine manual would be appreciated. Thanks! [1] I know that the cat is redundant, but I find this format easier to read. [2] Find the function definition, go to the opening brace, go to the close brace

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• Thunderbird: moving email from local Junk folder to IMAP folder yields "Message contains invalid header"

  - by Peltier

  Whenever I try to move an email from a local Junk folder to an IMAP folder in Thunderbird, I get the following error message: The current command did not succeed. The mail server responded: Message contains invalid header If Thunderbird's Junk folder is an IMAP folder on the server, then after Thunderbird has moved messages to that folder, I can successfully move messages from Junk back into to some other IMAP folder. However, if the Junk folder is not on the server, then moving a message from the local Junk folder to an IMAP folder yields the aforementioned error. The only interesting thing I've found about this error is "Message contains invalid header" from the MozillaZine Knowledge Base. That article officially is about importing folders from another email client, and does not mention the Junk filter as another possible cause. However the proposed solution is not very helpful since it requires manual editing of the message box files. Any better ideas? EDIT: make sure you read the comments before answering the question.

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• What is the name of this screw? (from HP ProLiant quick-deploy rail kits)

  - by kockiren

  I need the name of the screw for the HP quick deploy rail kit. The screw clicks into the square holes of the rack. It is a Gen4 Rail kit but the screw is like the Gen8 Rail kit ones. I called HP support, but they couldn't really help me. Unfortunately the rack manual does not name this screw either. After googling a while, I found the compatible "Thumb Style Rack Screws". It would do the job but isn't exactly what I am looking for. So, what is the name of the pictured screw.

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• Lost contact with my NAS after changing its IP

  - by Beles

  I did some brain-dead reconfiguring of my D-Link DNS-323 NAS some days ago. I have a home network where each computer gets a dynamically allocated IP address starting at 192.168.1.100. The irritating point (for me at least) was that the NAS changed IP if the power went down or I turned off the router. I then had to remap a drive-letter to point to the new IP address of the NAS. To remedy that I configured the NAS to have a static IP, 192.168.0.10. I had no good reason to choose that IP, other than I found it in a user manual for the NAS. After I changed the IP and rebooted the NAS it disappeared from the network and was never to be found again. Now I have a black brick standing in my home, looking good, but "dead". Could anyone point me in a direction which helps me solve this problem? I have about 100gb worth of pic of my children on this brick so I really want it back :-) Sincerely,

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• Removing emails from all mailboxes with certain text in subject

  - by Doug Luxem

  So, we had an errant program kick off about 15,000 emails to our users. I have our spam filters now blocking these on the edge until that gets resolved, but now I would like to clean our our users' mailboxes for them. Is there anyway with Exchange 2007 to remove all emails with certain text in the subject line? It would need to be a partial match because the subject changes slightly for each email. I am trying to do this with Forefront's manual scan job + content filter, but it does not seem to like partial matches on the subject.

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• Printing images with same orientation in Windows 7

  - by Notinlist

  I have generated many graphs (GraphViz .dot, about 35 pcs) from a grammar and then I generated .png files from it. All of them are small graphs with a few (2 to 5) nodes on it. I would like to print them, 9 or 12 per page. The problem is that Windows 7 Print Pictures guesses orientation for every image on the grid individually. How can I force Windows 7 Print Pictures to use the same orientation for all pictures (use the files as-is, just do the fitting) What alternative solution can I use for my task which does not include repetitive manual labor? (OS: Windows 7 64 bit, regularly updated.) Thanks in advance!

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• Darik's Boot And Nuke - ERROR /dev/sda

  - by user1403844

  I'm trying to wipe the drive of an old company computer with DBAN so I can install Redhat Enterprise and learn Linux (it's a Dell Inspiron 1210, if that matters). I burnt DBAN to a CD and boot from that CD (running on an external USB CD drive). Whenever I try to run the utility--whether it's Autonuke, or any of manual wiping methods-- it spits on the errors: ERROR /dev/sdb ERROR /dev/sda From what I've read on some other forums, there are some issues with other drives or removable media interfering however I've disabled all other drives in bios, leaving just CD/DVD and the Hard Disk but still no luck. Any advice on how I can reconcile these errors and wipe the disk?

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• MySQL Syntax error when trying to reset Joomla password

  - by Arthur

  I'm trying to reset my Joomla admin password by executing the following code in MySQL: INSERT INTO `jos_users` (`id`,`name`, `username`, `password`, `params`) VALUES (LAST_INSERT_ID(),'Administrator2', 'admin2', 'd2064d358136996bd22421584a7cb33e:trd7TvKHx6dMeoMmBVxYmg0vuXEA4199', ''); INSERT INTO `jos_user_usergroup_map` (`user_id`,`group_id`) VALUES (LAST_INSERT_ID(),'8'); When I attempt to execute it, I get the following error: Failed to execute SQL : SQL INSERT INTO `jos_users` (`id`,`name`, `username`, `password`, `params`) VALUES (LAST_INSERT_ID(),'Administrator2', 'admin2', 'd2064d358136996bd22421584a7cb33e:trd7TvKHx6dMeoMmBVxYmg0vuXEA4199', ''); INSERT INTO `jos_user_usergroup_map` (`user_id`,`group_id`) VALUES (LAST_INSERT_ID(),'8'); failed : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'INSERT INTO `jos_user_usergroup_map` (`user_id`,`group_id`) VALUES (LAST_INSERT_' at line 1 Could someone tell me where my Syntax might be wrong? I'm using MySQL version 5.0.95.

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• Question about the linux root file system.

  - by smwikipedia

  I read the manual page of the "mount" command, at it reads as below: All files accessible in a Unix system are arranged in one big tree, the file hierarchy, rooted at /. These files can be spread out over several devices. The mount command serves to attach the file system found on some device to the big file tree. My questions are: Where is this "big tree" located? Suppose I have 2 disks, if I mount them onto some point in the "big tree", does linux place some "special marks" in the mount point to indicate that these 2 "mount directories" are indeed seperate disks?

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• What does the fan speed sensor really report?

  - by T. Verron

  I have an overheating issue on my netbook (ASUS EeePC 1015PW), which I'm trying to troubleshoot. Using lm-sensors while overheating gave me this output : acpitz-virtual-0 Adapter: Virtual device temp1: +86.0°C (crit = +100.0°C) eeepc-isa-0000 Adapter: ISA adapter fan1: 4089 RPM coretemp-isa-0000 Adapter: ISA adapter Core 0: +82.0°C (crit = +100.0°C) Core 1: +80.0°C (crit = +100.0°C) But I can't hear the fan. So I enabled manual pwm controling and set the fan to full speed, and after a few minutes I got this output : acpitz-virtual-0 Adapter: Virtual device temp1: +65.0°C (crit = +100.0°C) eeepc-isa-0000 Adapter: ISA adapter fan1: 4016 RPM coretemp-isa-0000 Adapter: ISA adapter Core 0: +62.0°C (crit = +100.0°C) Core 1: +58.0°C (crit = +100.0°C) And this time I could hear the fan spinning. So there's quite obviously an issue with either fan control or fan monitoring. Hence the question : what kind of physical information does the fan sensor really report? Thank you PS. I should have added that the computer is a small, hard-to-disassemble netbook, so I can't and don't want to try experiments like "block the fan and see what the sensor reports".

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• how to set static IP address in opensolaris

  - by pm100

  in closed solaris i knew how to do this. Edit /etc/inet/ipnodes, change /etc/defaultrouter, reboot in opensolaris there is not defaultrouter file. first thing I tried was System-admin-network switch to manual enter static address and netmask and gateway. press 'activate' "this interface cannot be activated". No error messages given. Close widget, open again. Now hangs for a minute and then closes try edit /etc/inet/ipnodes, reboot eth card not up. Network widget hangs then closes Works perfectly on DHCP

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• How do I get 480i resolution for an external monitor in Windows 7?

  - by Carson Myers

  I'm trying to get a laptop video signal to my really old television, so that I can play movies on it. But the TV won't accept the video signal. I found the manual online, and apparently the output has to be 480i. But I don't know how to do that -- Windows 7 will only let me set the resolution down to 800x600. Even if I get it down to 640x480- is that 480i or 480p? How do I tell the difference? How do I switch between them? How do I get the resolution down so low in the first place?

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• MySQL proxy HA with no need to reconnect after node failure

  - by Matthias

  I use MySQL with Galera wsrep to get synchronous replication, that part it's up and running I need to setup a kind of proxy to handle client connections. Since any node in cluster can fail, clients will not connect nodes directly, but only via proxy. Currently I use Galera Load Balancer which does it work, but with one exception: if one node fails, all clients connected via proxy to that node get connection error and need to reconnect. I have no control over server applications connected to proxy and some of them can't reconnect automatically and need manual restart. So the question is how to force proxy automatically redirect already connected applications to new data node, without need to reconnect?

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• How to define template for org-mode HTML export?

  - by Andrew-Dufresne

  I am using org-mode to generate html pages from my notes. I used Publishing Org-mode files to HTML to setup blog system. I have defined an export template. But to use it I have to add following line in top of my every org file inside my notes project. #+SETUPFILE: ~/.emacs.d/org-templates/level-0.org Is there a way to set this up in .emacs or to customize an org-mode variable so that I do not have to place this line in every file? According to org-mode manual, #+SETUPFILE is an in-buffer setting. Does this mean I cannot define it globally for all org files? These two answers on SU tell how to customize style for HTML export. But my template file contains other settings besides CSS style. So only customizing style won't do it for me.

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• Minimizing windows to tray in xfce

  - by Gryllida

  For XFCE (v. 4.8), I'm searching for possible options to minimize windows to tray (iconify). This means that 1) they're not in the window listing and 2) they're not in the alt+TAB menu and 3) when closed, the window hides (it disappears from window listing but still stays running). "alltray" has some weird GTK-related bug (https://bugs.launchpad.net/alltray/+bug/589831; windows hide but unhiding doesn't do anything; they stay in the tray icon until the user undocks them). "trayer" complains that "another systray is already running" and there's no obvious workaround. This question here is to ask about possible minimalistic (as everything in XFCE is) solutions which don't involve manual compiling, and aren't an overkill like cairo-dock is (a rather bloated gnome-style application which creates a new large 'tray' instead of using the existing one). Thanks!

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• Specifying a source in puppet doesn't seem to work

  - by Mr Wilde

  I have been attempting to create a manifest for installing postgres 9.1 using puppet on a Centos 5 server. I have been trying to adapt the instructions at http://wiki.postgresql.org/wiki/YUM_Installation in order to achieve this and when I go through a manual process, I have been able to. It would seem to me therefore that a puppet manifest containing package { 'postgresql91-server': ensure => installed, source => 'http://yum.postgresql.org/9.1/redhat/rhel-5-x86_64/pgdg-centos91-9.1-4.noarch.rpm' } however on attempting to apply this manifest I get err: /Stage[main]//Package[postgresql91-server]/ensure: change from absent to present failed: Could not find package postgresql91-server Any expert puppeteers out there able to help me?

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• Running NginX (with Apache) and cPanel/WHM

  - by ub3rst4r

  I was wondering if its a good idea to be running NginX as the webserver (on port 80) and Apache as the reverse proxy (on port 8080) with cPanel/WHM being used as a control panel? I also installed Nginx Admin so the configuration for NginX is managed by WHM. The reason I am asking is because I came across an article (http://kbeezie.com/view/apache-with-nginx/) which explains how to setup Apache as a reverse proxy but it states If you are using a control panel based hosting such as cpanel/whm, this method is not advised. Most of the servers configuration is handled automatically in those cases, and making manual changes will likely lead to problems (plus you won’t get support from the control panel makers or your hosting provider in most cases). Anyone have any past experiences with this and can say if its good/bad idea?

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