Discuss January 2010

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296 participants
322 discussions

Problems loading drbd after upgrade
by robert mena 16 Jan '10

16 Jan '10

Hi, I've upgrade the kernel to the latest version (C5) and after the update the drbd is not being loaded at reboot time. My previous running kernel was 2.6.18-164.el5. I've checked the /lib/modules/ and /lib/modules/2.6.18-164.10.1.el5/weak-updates/drbd82/drbd.ko -> /lib/modules/2.6.18-164.el5/extra/drbd82/drbd.ko And /lib/modules/2.6.18-164.el5/extra/drbd82/drbd.ko exists 2004 -rw-r--r-- 1 root root 2047377 Jan 12 22:52 /lib/modules/2.6.18-164.el5/extra/drbd82/drbd.ko And the contents (at least the size) is the same of the kmod-drbd82 rpm -ql kmod-drbd82 /lib/modules/2.6.18-92.1.13.el5 /lib/modules/2.6.18-92.1.13.el5/extra /lib/modules/2.6.18-92.1.13.el5/extra/drbd82 /lib/modules/2.6.18-92.1.13.el5/extra/drbd82/drbd.ko ls -lsa /lib/modules/2.6.18-92.1.13.el5/extra/drbd82/drbd.ko 2004 -rw-r--r-- 1 root root 2047377 Oct 3 2008 /lib/modules/2.6.18-92.1.13.el5/extra/drbd82/drbd.ko If I insmod the drbd I can load it and if I start (service drbd start) I can access the shares so something is wrong :)

2 4

php update
by Helmut Drodofsky 15 Jan '10

15 Jan '10

Hi, according to [CentOS] CentOS-announce Digest, Vol 59, Issue 5 I made an update to php. The Server is running apache in fastcgi mode. Up to yesterday all was OK. Now as far as I see the php script is not further running with the correct user: but the suexec is startet with correct uid and gid! Any help? Suggestions? Helmut

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quotacheck question
by Aggelis Aggelis 15 Jan '10

15 Jan '10

i want to implement disk quota on my /home filesystem (it is going to be a mail server) so i read tha appropriate how to's edited limits for the users and everything is fine but then for quota meintenance i stuck into quotacheck the man page says quotacheck should be run each time the system boots and mounts non- valid filesystems. This is most likely to happen after a system crash. AND It is also unwise to run quotacheck on a live filesystem as actual usage may change during the scan. To prevent this, quotacheck tries to remount the filesystem read-only before starting the scan. After the scan is done it remounts the filesystem read-write. but the 7.2.3 paragraph (Managing disk quotas) of centos 5 deployment guide ...... However, quotacheck can be run on a regular basis, even if the system has not crashed. Running the following command periodically keeps the quotas more accurate ....... i have looked also on the web and some suggest to run quotacheck only at boot time and others to run quotacheck regularly but i ahve not found a clear answer i wonder what are the comments of centos community on hte subject

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how to send mail from console
by Roland Roland 15 Jan '10

15 Jan '10

Hi all, i'm trying to get a script to send me an email whenever a certain condition takes place.. i'm afraid i dont have experience with mail command nor anything else related to sending emails for that matter.. i googled a bit and tried using mutt and mail ... though i do not recieve any email in my inbox... the command im using is the following : mail -s “disk space report” R_O_L_A_N_D(a)hotmail.com should i setup a default smtp to use? where can i check for the errors that are taking place?

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Yum update worrisomeness
by m.roth＠5-cent.us 15 Jan '10

15 Jan '10

I went to do an update a bit ago (10:30 or 10:45 EST), and first, it got to rhel-i386-server-5/filelists | 14 MB 02:23 and was running at 2Kb/sec to 4Kb/sec, then, when I killed it and restarted it about 20 min later, it went at about 28Kb/sec, then died, reporting: Error: failed to retrieve repodata/filelists.xml.gz from rhel-i386-server-5 error was [Errno -1] Metadata file does not match checksum This makes me *very* nervous. Anyone know anything? mark

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how to startup snmpd on debug mode
by mcclnx mcc 15 Jan '10

15 Jan '10

I tried to startup "snmpd" on debug mode but NOT successful (CENTOS 5.4). I have been tried following way: /etc/init.d/snmpd start -D /etc/init.d/snmpd -D start service snmpd -D restart any ideal??? ___________________________________________________ 您的生活即時通－溝通、娛樂、生活、工作一次搞定！ http://messenger.yahoo.com.tw/

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Re: [CentOS] Backup server
by Les Mikesell 15 Jan '10

15 Jan '10

Sorin Srbu wrote: > >> >> Yes, but if you use the epel rpm, either mount it at /var/lib/BackupPC or > put a >> symlink there before the install. If you install from the sourceforge > source >> there is an install script that modifies the location so you can put things >> where you want, but the rpm packages have already done that. The next > version >> will make this easier to change but the current one needs to stay in the >> location set when the package was built. > > Ran into some problems and couldn't login to the web interface. The above > helped, when tracking down the paths and symlinks. Thanks! > > So far, BackupPC looks good. Will start configuring it now and do some test > backups later this afternoon. Darn users can't let me work in peace... ;-) You might want to join the mail lists: http://backuppc.sourceforge.net/info.html#lists if you have any specific questions about it. There are several users with a lot of experience and the author still participates. -- Les Mikesell lesmikesell(a)gmail.com

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Re: [CentOS] Backup server
by Les Mikesell 15 Jan '10

15 Jan '10

Sorin Srbu wrote: > >> So you need to be able to walk the fine line >> between these two. > > I'm trying. Something it just isn't enough. Although the boss has a soft spot > for linux, as he also heads the CADD (Computer Aided Drug Design)-group. > >> To put it into perspective, ask the manager how much it would cost the >> business if this data was unrecoverable? After that, if they still >> don't want to spend a few hundred $$s on the insurance, get it in >> writing that your manager understands the risk and print it out and >> post it on your office wall. > > Rather confrontative isn't it? Me being a Swede, I try to avoid those > situations if possible, and find a compromise instead that both parties can > live with. 8-} Oh, and I'm a government employee, so the money I spend is > tax-payers money. Got to be careful there. Being careful with the money is the point. Someone has to understand the risks. > You know how that saying goes? You can chose between good, fast and cheap. But > you're only ever allowed to pick any two. For me that's IT in a nutshell. ;-) The other question to ask is whether an offsite copy is needed. After a fire or other site disaster some businesses might collect the insurance money and disappear - others might want to be able to rebuild and continue. Government operations would probably need to continue and need a plan for that. -- Les Mikesell lesmikesell(a)gmail.com

2 1

8-15 TB storage: any recommendations?
by Boris Epstein 15 Jan '10

15 Jan '10

Hello everyone, This is not directly related to CentOS but still: we are trying to set up some storage servers to run under Linux - most likely CentOS. The storage volume would be in the range specified: 8-15 TB. Any recommendations as far as hardware? Thanks. Boris.

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Re: [CentOS] Backup server
by Benjamin Franz 15 Jan '10

15 Jan '10

Sorin Srbu wrote: > > Today I have five 500GB-disks raided on linux machine. Remove one for parity > and I have 2TB of real space available. Doing a 0+1, ie 1TB, would indeed be > better as performance goes, but 1TB of space, well, it just isn't enough > unfortunately. > > As it is now, the 2TB shebang is mounted as /backup. Does that count as a > single filesystem? > I was thinking about your long term here. Make sure to use LVM to create your underlaying partition. Then you can add disk space in the future without having to reformat everything and can just grow your ext3/ext4 partition instead. -- Benjamin Franz

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Discuss January 2010