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Re: [CentOS] Memory vs. Display Card
by Rick 09 Mar '09

09 Mar '09

In article <12768.4492654682$1236586039(a)news.gmane.org>, Sorin Srbu <centos(a)centos.org> wrote: >If the motherboard supports dual-channel configs, one might want to take care >how one distributes the different mem-sticks in the banks. Eg the 2GB-sticks >in bank 1 and 3 and the 4GB-sticks in banks 2 and 4. Well, yeah, of course. But even if I got that wrong, the 4GB alone did not work in the same slots the 2GB sticks were in.

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Grub Loading stage2Read Error
by dnk 09 Mar '09

09 Mar '09

Hi there, I had a system drop this weekend, and upon boot, the system halts at a black screen with the following error: "Grub Loading stage2Read Error" Now upon googling around, it seems to be recommended to reinstall GRUB. My system is a simple raid 0 (data backed up), with the typical partition scheme (LVM, etc) provided by CentOS. This system is 5.2 in my case. Now since my system is a raid 0, I am a little hesitant to do the procedure as none of the instructions I have found take this into consideration. What would be the best way to do this, or more importantly to find out the proper device to run (on): /sbin/grub-install /dev/... Thanks in advance. d

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[bug] Perl Performance Issue
by Georg Grabler 09 Mar '09

09 Mar '09

Hello, I'm currently bitten hard by a bug which was introduced by RedHat in their perl releases. This bug has been fixed "recently", to be true in January, by RedHat. The bug I'm talking about is a performance issue, which is caused by overloading blessed functions: http://bugs.centos.org/view.php?id=2357 The bug fix (January 2009): http://rhn.redhat.com/errata/RHBA-2009-0117.html claims to fix 379791 <http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=379791> - perl bless/overload performance problem I wanted to ask if we can expect CentOS to release a new version of perl soon, or if we should rather tend building our own packages. I'd prefer the CentOS update, due to the reason that I don't know if we'll have the same problems with this in mod_perl as well. Kind regards, Georg

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Re: [CentOS] Clonezilla SE with CentOS5
by Les Mikesell 09 Mar '09

09 Mar '09

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Re: [CentOS] Clonezilla SE with CentOS5
by Thomas Johansson 09 Mar '09

09 Mar '09

Sorin Srbu wrote: > Hi all, > > I'm looking for a cloning solution for our Windows/Linux/*nix computer park > and ran into Clonezilla. Apparantely the DRBL and other documentation > mentions CentOS as a suitable base for it. > > Does anybody on this list use this solution and can say something about it > in the running-Clonezilla-with-CentOS-context, be it recommendations, > gotchas', warnings or whatever? > Hi We have a standalone network cloning laptops using clonezilla. The person using it says it does what it is supposed to. The install was pretty much by the instructions on the webpage. The computer we use have an extra NIC for a private clone network. We also installed an extra HDD 500GB for clone image storage. What i did was pretty much; 1. Configure nic on eth1 to 192.168.100.1 2. Add packages dkms dkms-fuse dkms-ntfs3g dkms-ntfs fuse-ntfs-3g-devel fuse-ntfs-3g * /yum install dkms dkms-fuse dkms-ntfs3g dkms-ntfs fuse-ntfs-3g-devel fuse-ntfs-3g/ 3. /Modify ///etc/sysconfig/iptables/ according to Clonezilla server firewall <https://sysadm.isy.liu.se/wiki/pmwiki.php/Main/ClonezillaFirewall> 4. Install Clonezilla following Clonezilla server install <http://drbl.sourceforge.net/one4all/> 5. Configure the server according to the webpage Regards Thomas

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Nfs4 with kerberos freezing system
by Olaf Mueller 09 Mar '09

09 Mar '09

Hello, I have a CentOS 5.2 server that exports /home on the local network for 2 users by secure nfs4 with kerberos krb5p. The clients are a notebook and a desktop pc. The following error is always reproducible on all clients. If running the clients on high load, that means for example 5 firefox windows open and connected with www pages from the internet, installing the new qt development environmet on the nfs4 share from the 297 mb big qt-sdk-linux-x86-opensource-2009.01.bin file and copy a 649 mb iso image to the nfs4 share, the client is freenzing and a reboot is necessary. If running the clients on low load, than the system is stable for hours. In my opinion this is an error by an CentOS nfs package, cause this problem is reproducible with different kernels, different desktop environments and different clients. I don't think the error is caused by the server hardware, cause if running the same nfs setting with nfs version 3 and disabling nfs secure, the system is stable. I have test this with - latest CentOS 5.2 kernel and testing redhat kernel 2.6.18-133.el5 - kde and gnome - different clients and hardware Is anybody here successfully using nfs4/krb5p with CentOS 5.2? regards Olaf

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hplip problems - configure: error: "cannot find libjpeg support"
by Anne Wilson 09 Mar '09

09 Mar '09

I'm trying to get hplip-2.7.12 installed, and I'm reasonably sure that I had it installed on this box before my problems last month. Anyway, it will not build at the moment. It stops the Configure with "configure: error: "cannot find libjpeg support". However, Package libjpeg - 6b-37.i386 is already installed. Similarly, attempting to install hplip-3.9.2 stops with warning: Missing REQUIRED dependency: libusb but Package libusb - 0.1.12-5.1.i386 is already installed. Version 2.7.12 is the earliest version to support my printer. I'm fairly sure I had it installed on this box before my problems last month, and I'm fairly sure that it also was installed on FC6 some time back. Either of these versions would be fine. Any ideas? Anne

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Clonezilla SE with CentOS5
by Sorin Srbu 09 Mar '09

09 Mar '09

Hi all, I'm looking for a cloning solution for our Windows/Linux/*nix computer park and ran into Clonezilla. Apparantely the DRBL and other documentation mentions CentOS as a suitable base for it. Does anybody on this list use this solution and can say something about it in the running-Clonezilla-with-CentOS-context, be it recommendations, gotchas', warnings or whatever? Thanks. -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu [Sysadmin, Systems Engineer] # Dept of Medicinal Chemistry, Phone: +46 (0)18-4714482 >3 signals> GSM # Div of Org Pharm Chem, Mobile: +46 (0)701-718023 # Box 574, Uppsala University, Fax: +46 (0)18-4714482 # SE-751 23 Uppsala, Sweden Visit: BMC, Husargatan 3, D5:512b # Web: http://www.orgfarm.uu.se ----------------------------------------------------------- # () ASCII ribbon campaign - Against html E-mail # /\ # # MotD follows: # CentOS: The OS Maker!

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LDAP proxy
by Test 09 Mar '09

09 Mar '09

List, I have a challenge with some LDAP servers: I am in the process of converting from physical LDBM backends to virtualized BDB backends. Problem is that there are a lot of clients connecting to this ldap instance (with updates), so i do not want to inform them that our ldap server is offline for a maintenance window... I would like to have a solution which does some form of caching until the new instances are online and then flush the updates to the new instance.. Does anyone have a clue on how to do this, or a better solution to my problem ?

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whither mplayerplug-in?
by Frank Cox 09 Mar '09

09 Mar '09

I have rpmfusion set up, but yum tells me that mplayerplug-in is not available. Has it been replaced by something else? -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com

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