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System hanged - no info in logs.
by Rafał Radecki 14 Apr '12

14 Apr '12

Hi All. I had today a problem with my mail server (2.6.18-274.12.1.el5 #1 SMP Tue Nov 29 13:37:35 EST 2011 i686 i686 i386 GNU/Linux, CentOS release 5.7 (Final)). On my Cacti graphs I see that there has been much I/O write on the disks and then there is no more info. Also in logs (messages, dmesg, netconsole) there is no info for about 15 minutes when there was a problem with the server. I would like to have some info in such situations. Do you know any solutions? Best regards, Rafal.

5 6

rhel/centos alternative to logwatch?
by Bob Hoffman 13 Apr '12

13 Apr '12

Logwatch file shows last upgrade to the code was 2007. The unmatched entries are killing me in the reports. I figure there must be a newer utility centos has in the repo but I cannot find one. Is logwatch the only one that is included? thanks

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FW: upgrade issue
by Paul A 13 Apr '12

13 Apr '12

Fixed the network issue by removing the net udev rule, somehow that was causing the network no to come up. Disabled iscsid since it's not needed and added did echo 0 > /proc/sys/kernel/hung_task_timeout_secs to fix the megaraid issue. -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Paul A Sent: Friday, April 13, 2012 3:41 PM To: 'CentOS mailing list' Subject: Re: [CentOS] upgrade issue Mark, I used the centos repos, this server has centos 5.8. Iscsi will work on my previous kernel but not on the new one. I wanted to switch back to the previous kernel but for some reason the network scripts hangs even though it shows the e100 nic driver loaded. -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of m.roth(a)5-cent.us Sent: Friday, April 13, 2012 3:31 PM To: CentOS mailing list Subject: Re: [CentOS] upgrade issue Paul A wrote: > Dale, I disabled it and the server came up but im seeing all sorts of > kernel errors when its disabled ( see below ). If this can't be fixed > I would really like to boot the previous kernel however the network > script won't start. Im not really sure how upgrading the kernel caused > the network to stop working on the previous kernel. > > Apr 13 15:21:31 bakup kernel: INFO: task modprobe:740 blocked for more > than > 120 seconds. > Apr 13 15:21:31 bakup kernel: "echo 0 > > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oh, wonderful. Didn't used to see that before the last six months. <snip> > Apr 13 15:21:31 bakup kernel: Call Trace: > Apr 13 15:21:31 bakup kernel: [<f89aa522>] megaraid_queue+0x8ce/0x8d8 > [megaraid] <snip> Interesting. Is this built-in for CentOS, or did you install megaraid from other than the CentOS repositories? mark _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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harddisk partition not created right with centos 5.7
by Vinay Nagrik 13 Apr '12

13 Apr '12

Hello Group, I am building a company application based on Centos 5.7 OS. The application was working earlier and creating right partitions both for hardware as well as VM. But since we introduced Centos 5.7 OS and start building application with 5.7 anaconda the hardware partitions are duplicate of VM partitions *while creating hardware partition my code looks like.* cat > /tmp/partmap.ks <<EOPM *clearpart --all --initlabel --drives=sda *part swap --fstype swap --asprimary --size=16000 part /boot --fstype ext3 --size=400 --asprimary --fsoptions=noatime,defaults part pv.01 --size=1 --grow volgroup jmpvgnocf pv.01 logvol / --fstype ext3 --name=lvroot --vgname=jmpvgnocf --size=1 --grow --fsoptions=noatime,defaults logvol swap --fstype swap --name=lvswap --vgname=jmpvgnocf --size=$swap_size EOPM LV Name always shows /dev/volGroup00/LogVol00. *my VM partition code looks like* cat > /tmp/partmap.ks <<EOOPM clearpart --all --initlabel #autopart changes behvior of autopart. to avoid version dependency #put specific partion configuration #autopart part /boot --fstype ext3 --size=100 part pv.2 --size=0 --grow --ondisk=sda volgroup VolGroup00 --pesize=32768 pv.2 logvol / --fstype ext3 --name=LogVol00 --vgname=VolGroup00 --size=1024 --grow logvol swap --fstype swap --name=LogVol01 --vgname=VolGroup00 --size=1000 --grow --maxsize=1984 EOOPM Could someone tell me what am I doing wrong. thanks in advance. nagrik

2 1

an assortment of mail serving issues
by Jason T. Slack-Moehrle 13 Apr '12

13 Apr '12

Hi All, I moved to a new CentOS6 install after an old CentOS5 server started exhibiting problems. I am having mail serving issues and they are confusing. I am seeing both Sendmail and Zimbra issues. We front e-end out operation with a pfSense box and it has the following mail ports open: 25, 465, 587, 110, 143, 993, 995. We have Zimbra and that also requires 7025 and 7071 be open. This sent OS Server has these same ports open and verified by 'system-config-network-tui' 1. We have a few php based sites that utilize code like: $headers = 'MIME-Version: 1.0' . "\r\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; $mail_to = "slackmoehrle(a)gmail.com"; $mail_subject = "[6Colors] Footage!"; $mail_body = "<html><body> "; $mail_body = $mail_body."[6Colors - FOOTAGE] "; $mail_body = $mail_body."Name: ".$vName." "; $mail_body = $mail_body."E-Mail Address: ".$vEmail." "; $mail_body = $mail_body."Comments: ".$vComment." "; $mail_body = $mail_body."------------ END ------------ "; $mail_body = $mail_body." </body></html>"; mail($mail_to, $mail_subject, $mail_body, $headers); This mail is failing to be delivered. 2. We have a database backup script that e-mails a few very small databases every night. #Enter the email address you would like to receive the backup EMAIL="slackmoehrle(a)gmail.com"; MAIL="/usr/bin/mail"; /usr/bin/uuencode $DUMP$EXT2$EXT4 $DUMP$EXT2$EXT4 |$MAIL -s "Mysql Backup For $DATABASE" $EMAIL ; This mail is failing to be delivered. 3. We have a CMS running that we have tried using SendMail and SMTP by authenticating using Google credentials, following Google instructions and the CMS cannot send outgoing mail as well. 4. Zimbra users can send mail, but replying back doesn't work. They cannot receive e-mails. I thought to check '/var/log/maillog' so I did 'tail maillog' # tail maillog Apr 12 20:43:56 www postfix/lmtp[21788]: connect to thedigiologygroup.org[75.149.56.27]:7025: Connection timed out Apr 12 20:43:56 www postfix/lmtp[21788]: 6AD69198102B: to=<jason(a)thedigiologygroup.org>, relay=none, delay=21, delays=0.07/0.01/21/0, dsn=4.4.1, status=deferred (connect to thedigiologygroup.org[75.149.56.27]:7025: Connection timed out) Apr 12 20:44:04 www postfix/smtpd[21765]: disconnect from mail-pz0-f51.google.com[209.85.210.51] Here clearly is a connection timeout on port 7025, but I do see that it is open on our pfSense box and the CentOS server experiencing this. So I started checking things like DNS, etc # host thedigiologygroup.org thedigiologygroup.org has address 75.149.56.27 thedigiologygroup.org mail is handled by 0 mail.thedigiologygroup.org. # dig +short thedigiologygroup.org mx 0 mail.thedigiologygroup.org. I had Comcast create Reverse PTR records yesterday for the IP 75.149.56.27 for mail.thedigiologygroup.org and mail.ouremail.us. I use DNSQueries to test this and I found they have a type for the mail.ouremail.us entry, they used .com, so I will call and have them correct it I tried doing an SMTP test on DNSqueries.com and it fails saying: I was NOT able to connect on port 25 to mail.thedigiologygroup.org I dont know if this is trying open relay stuff, so that should fail? I rebooted the server finally and looked at maillog after a reboot and I see: # tail /var/log/maillog Apr 12 21:14:05 www zmmailboxdmgr[5836]: status OK Apr 12 21:14:05 www zmmailboxdmgr[6021]: status requested Apr 12 21:14:05 www zmmailboxdmgr[6021]: status OK Apr 12 21:14:30 www postfix/postqueue[6243]: fatal: Queue report unavailable - mail system is down Apr 12 21:15:00 www postfix/postqueue[6251]: fatal: Queue report unavailable - mail system is down Apr 12 21:15:07 www zmmailboxdmgr[6351]: status requested Apr 12 21:15:07 www zmmailboxdmgr[6351]: status OK Apr 12 21:15:07 www zmmailboxdmgr[6360]: status requested Apr 12 21:15:07 www zmmailboxdmgr[6360]: status OK Apr 12 21:15:30 www postfix/postqueue[6559]: fatal: Queue report unavailable - mail system is down So I am really confused and I was hoping for some advice on sorting this out. -Jason

2 2

upgrade issue
by Paul A 13 Apr '12

13 Apr '12

I have an old dell 2450 that was running kernel 2.6.18-308.1.1.el5 I then upgraded it via yum to 2.6.18-308.1.1.el5. Now when the server boots to the new kernel, 2.6.18-308.1.1.el5 it hangs on "starting iSCSI" and the weird thing is when I tried to switch back to the older 2.6.18-308.1.1.el5 kernel it works fine but the network script fails to start. I'm not really sure what I should do, if someone can give me an idea on what I need to do to fix the iSCSId issue on the new kernel or revert back to the old kernel and fix the network issue. The odd thing is both kernel load the e100 network driver but on the older kernel I can get the network script to start. I would appreciate some help. paul

3 7

Intel Graphics on Dell Optiplex (Generic Question)
by Brian McGrew 13 Apr '12

13 Apr '12

Good morning, Dell has once again obsoleted out hardware and we're moving forward to the Optiplex 790 as a shipping platform with the integrated Intel graphics chip. We're using CentOS 5.6 32 and 64-bit with a 2.6.18 kernel. What are my options for supporting the newest Intel graphics chipsets? -b

4 3

Re: [CentOS] FOUND_THE_ISSUE -- URGENT -- pseudo network interface creating problem with dhcp-- centos 5.5
by sri 13 Apr '12

13 Apr '12

Hi John, Thanks for the explanation. I looked at the BIOS and found the following where the pseudo MAC address is from: ################################################################################ Planar Ether 1 MAC Address: E4:1F:13:77:16:5F ============> This is shown in ifconfig eth0 Planar Ether 2 MAC Address: E4:1F:13:77:16:60 ============> This is shown in ifconfig eth1 BMC MAC Address: E4:1F:13:77:16:61 ======> This is the MAC address my SW is showing on the SW port connected to my eth0 Slot 1 MAC Address: 00:15:17:EB:AE:A4 ===========> This is shown in ifconfig eth2 ######################################################## I got some pointers over web on how to disable the BMC so that it would not use eth0. But another question in my mind is what is the significance of BMC MAC address here? (How different is it from the MAC addresses of other conneted NIC cards and how OS uses it)? And why not BIOS shows all the NIC devices detected ? (because "ifconfig -a" shows eth0/eth1/eth2/eth3 for me with eth3 MAC is: 00:15:17:EB:AE:A5. I could not see eth3 MAC address in the above BIOS output). Thanks for your time. Regards, Sri On Thu, Apr 12, 2012 at 1:18 AM, John R Pierce <pierce(a)hogranch.com> wrote: > On 04/11/12 9:36 AM, sri wrote: >> 4) Have you checked if your motherboard IPMI is not pulling an address >> during boot? >> -- Frankly, not sure how to check motherboard IPMI messages. Verified >> dmesg output. Following is the dmesg output. >> Please share any way to check motherboard IPMI is pulling another address? > > well, first, does your motherboard *HAVE* an IPMI management module, and > if so, does it use a dedicated ethernet port, or is it 'piggybacked' on > eth0 ? the behavior shown could be the latter. > > I'd look in the system or motherboard documentation for this... > depending on the IPMI module, it may have a web or ssh interface, or it > may require another system contact it via an 'ipmitool' of some sort. > It probably has an initial user/pass like admin/admin which should be > reconfigured during system configuration and deployment. > > -- > john r pierce N 37, W 122 > santa cruz ca mid-left coast > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos -- -- Krishna Mohan B

3 2

Bacula - missing mysql file?
by TE Dukes 13 Apr '12

13 Apr '12

Hello, Tying to setup bacula but it seems the package(s) are missing the mysql file to set up the database. I see some updatedb files to upgrade a mysql database but none for a new installation. TIA

2 3

CentOS 6.2 anaconda bug?
by Lars Hecking 13 Apr '12

13 Apr '12

I have a kickstart file with the following partitioning directives: part /boot --fstype ext3 --onpart=sda1 part pv.100000 --onpart=sda2 --noformat volgroup vol0 pv.100000 --noformat logvol / --vgname=vol0 --name=lvol1 --useexisting --fstype=ext4 logvol /tmp --vgname=vol0 --name=lvol2 --useexisting --fstype=ext4 logvol swap --vgname=vol0 --name=lvol3 --useexisting logvol /data --vgname=vol0 --name=lvol4 --noformat The purpose is reinstalling a machine with a given partitioning scheme and preserve files on /data across the reinstall. Kickstarting a machine with these instructions, it comes up without the /data partition, it is not mounted and not in fstab. But the lvol exists and can be mounted manually, with all data preserved. /root/anaconda-ks.cfg shows the following: #part /boot --fstype=ext3 --onpart=sda1 #part pv.008002 --onpart=sda2 --noformat #volgroup vol0 --pesize=32768 --useexisting --noformat pv.008002 #logvol / --fstype=ext4 --name=lvol1 --vgname=vol0 --useexisting #logvol /tmp --fstype=ext4 --name=lvol2 --vgname=vol0 --useexisting #logvol swap --name=lvol3 --vgname=vol0 --useexisting #logvol --name=lvol4 --vgname=vol0 --useexisting --noformat I.e. the mount point was dropped. Any ideas why this might be happening? I couldn't find anything related in the migration guide, and this looks like a bug to me.

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