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Re: [CentOS] PCNS for CentOS and APC ups's
by Ross S. W. Walker 06 Feb '08

06 Feb '08

I use apcupsd from epel -Ross ----- Original Message ----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: 'centos(a)centos.org' <centos(a)centos.org> Sent: Wed Feb 06 18:11:12 2008 Subject: [CentOS] PCNS for CentOS and APC ups's Apparently there is only an Itanium client for RHEL according to APC? I need to setup a few boxes to shut down safely and don’t know if the PCNS 2.2.3 Linux version will do it? Anyone know why it needs Java as well? (Blegh) Assuming APC is fairly popular, how do you guys shutdown your CentOS boxes with a UPS with a management card in it? Thanks! jlc ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

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yum upgrade php dependency failure
by Ed Morrison 06 Feb '08

06 Feb '08

Hi, I am trying to upgrade php to version 5. When running yum upgrade I get this failure: --> Running transaction check --> Processing Dependency: php = 4.3.9-3.22.9 for package: php-pear --> Finished Dependency Resolution Error: Missing Dependency: php = 4.3.9-3.22.9 is needed by package php-pear but the required php version is installed: [root@ftp ~]# rpm -q php php-4.3.9-3.22.9 Any suggestions on what is wrong and how to fix this? Thanks! Ed

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Installation problems with large mirrored drives
by Bowie Bailey 06 Feb '08

06 Feb '08

I am trying to install CentOS 4.6 to a pair of 750GB hard drives. I can successfully install to either of the drives as a single drive, but when I try to use both drives and mirror the partitions, I start having problems. Anaconda crashes as it is trying to format the drives. This is what I'm trying to create: /dev/md0: 200MB, /boot /dev/md1: 2GB, swap /dev/md2: rest of the drive, LVM PV LogVol00: 10GB, / LogVol01: rest of the VG, /home I uploaded the anaconda log to the CentOS bugtracker, but I don't know if or when I should expect a response from that, so I'm asking here as well. If you want to see the log, here's the link: http://bugs.centos.org/view.php?id=2652 Is there a way I can work around this problem? It has been suggested that I build the system with a single drive and then add the mirror to it. Is it possible to add a mirror to a partition that is an LVM PV? Can someone give me a link to a good set of instructions for doing this? Thanks, -- Bowie

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NFS problem in the latest kernel (Was: [CentOS] MySQL issues with kernel-2.6.18-53.1.6.el5.x86_64.rpm)
by Akemi Yagi 06 Feb '08

06 Feb '08

On Jan 30, 2008 8:25 AM, Johnny Hughes <johnny(a)centos.org> wrote: > Joshua Baker-LePain wrote: > > On Wed, 30 Jan 2008 at 10:18am, Johnny Hughes wrote > > > >> Bent Terp wrote: > > > >>> Has something changed with regard to the mount options? We use > >>> (rw,noatime,rsize=8192,wsize=8192,hard,udp,context="system_u:object_r:httpd_sys_content_t:s0) > >>> > >>> which has worked fine until now. > >> > >> I am trying to duplicate your options ... and noatime is not a valid > >> option. > >> > >> Could you please double check the /etc/export options again so I can > >> try to duplicate the issue. > >> > >> Using my standard /etc/exports on 2 i686 test platforms I have no > >> problems at all. > >> > >> Here are the options I used on my test: > >> > >> (rw,insecure,sync,no_subtree_check) > > > > Those are NFS export options. The OP's list is *mount* options (i.e. on > > the client side). He stated that his NFS server is actually an EMC > > Cellera. > > > AH ... now I see. > > In any event, I can not duplicate the problem with an nfs export on c4 > or c5 and connecting with a c5 client, regardless of the kernel using i686. One other person has reported seemingly the same nfs problem in the Scientific Linux mail list: http://listserv.fnal.gov/scripts/wa.exe?A2=ind0801&L=scientific-linux-devel… According to this post, "It only seems to affect x86_64 systems, or affects them much more noticeably than it does i386 ones." Akemi

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RE: [CentOS] Installation problems with large mirrored drives
by Bowie Bailey 06 Feb '08

06 Feb '08

nate wrote: > Bowie Bailey wrote: > > > Is there a way I can work around this problem? It has been > > suggested that I build the system with a single drive and then add > > the mirror to it. Is it possible to add a mirror to a partition > > that is an LVM PV? Can someone give me a link to a good set of > > instructions for doing this? > > I work around it by not using LVM during installation. I've > experienced random crashes with anaconda going back to at least RHEL > 3 I think when LVM was used during install(kickstart specifically). > Often times if > I try a 2nd(or a 3rd) time I can get anaconda to go through without > crashing on LVM. > > If you really want LVM I'd suggest something like making your root and > boot(assuming you have seperate ones) partitions standalone mirrored > partitions, setup another pair of mirrored partitions that take up the > rest of the drive that you'll use for LVM, but don't make it LVM, just > make it a normal file system(this so it configures the software raid > end of things for you). > > Once the system is installed, then change the partition type of the > last mirrored pair to be LVM, and configure LVM. If you want your > /usr /var etc on LVM make the volumes, go to runlevel 1 and copy > the files to the new locations and re-mount the LVM volumes as > your /usr /var etc. I was able to install the system with no problems using the exact same filesystem layout (LVM and all) with a single drive. The problem only occurs when I try to mirror the partitions. I may give your suggestion a try tomorrow when I have more time to play with the system. -- Bowie

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Trouble Ticket System
by Jun Salen 06 Feb '08

06 Feb '08

>> Take a look at Request Tracker >> http://bestpractical.com/rt/ >> >> Active support and an active user community. >> >and run it on Centos 5 or use the updated LAMP packages in the centos >plus repository if you are running Centos 4.I try to used this also last year but I found it complicated to use. If possible, I want my user to find it easy to use. After searching the list archives, I found suggestion on using EXO PHPDesk and it looks good. I will try to install it later and check. Thanks, junji aisalen.wordpress.com Linux Registered User #253162 CentOS User Send instant messages to your online friends http://uk.messenger.yahoo.com

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sendmail: fatal message, sudo bash
by Farid Hamjavar 06 Feb '08

06 Feb '08

Centos 5 Hello I successfully converted my mta from sendmail to postfix. no problem. mail is ok. A by-product of that, as bizarre as it may seem is this: As regular user, when I do 'su -' to become root, all is well. As regular user, when I do 'sudo bash' I become root alright but I also get: sendmail: fatal: Recipient addresses must be specified on the command line or via the -t option I tried many things ranging from temporarily swapping sendmail.postfix to messing around with /etc/profile and /etc/skel/* and many other things. How can I address the annoying message above? Thanks, Farid

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system gets suspended automatically!
by Chandra 06 Feb '08

06 Feb '08

Hello! I am running CentOS-5 with latest kernel available by deault (2.6.23). I installed it on a Dell XPS machine having Intel Quad processors (4 parallel cpus). I use it to run a computational program and I need to keep the program running for 1-2 months continuously. I generally boot it in runlevel-3 with network ON without X and use ssh from another machine to connect and run the program using the "nohup" utility. However, the system automatically gets suspended (the computational program stops, ssh stops working, whole the OS seems to be freezing) after 4-5 hours. I have stopped the "acpid" daemon and boot the kernel with "acpi=off" option in "grub.conf" but no help. The kernel log ( /var/log/messages) doesn't show anything special. After the instant of suspension, kernel also stops logging into "/var/log/messages". Please help me out. I think there is a kernel problem. I have run programs for days and days continuously using FC5 (which had older kernel). I can't use FC5 or older version of CentOS because I need GCC-4.1.2+ to compile parallel OpenMP program. Thank you, Chandra

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ohci_hcd 0000:00:0f.2: wakeup
by Jun Salen 06 Feb '08

06 Feb '08

Hi, I had successfully installed CentOS 5.1 fully updated in old Fujitsu Primergy MS610 server. There was no problem except that during startup, I found many message saying "ohci_hcd 0000:00:0f.2: wakeup". Searched the internet and did what is written to avoid this to no avail. Anyone have ideas on how to resolve this? It seems that it was related to USB port which, I will not use anyway. Thanks, junji aisalen.wordpress.com Linux Registered User #253162 CentOS User Send instant messages to your online friends http://uk.messenger.yahoo.com

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strategy/technology to backup 20TB or more user's data
by ankush grover 06 Feb '08

06 Feb '08

Hi Friends, I am currently using Samba on Centos 4.4 as a domain member of AD 2003 with each user having a quota of 2GB(no of users is around 2,000). Now the management wants to increase the quota to 10GB with this there will be more than 20TB of data to be backup weekly which will take lots of hours. Currently Veritas backup software is used to backup data on tapes. There is a concept of snapshots of Samba with LVM where snapshots of samba are taken at the given interval but so far haven't found any good article or how-to on that and also what is the experience of users using this technology and also what other technologies are being to handle TBs of data. Kindly let me know if you need any further inputs Thanks & Regards Ankush

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