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Recover RAID
by Jeff Sadino 04 Mar '10

04 Mar '10

Hello Everyone, First time CentOS poster :) I have CentOS 4 installed on the head node of a Sun Gridengine cluster set up in a RAID. The head node has four hard drives, and I assume that drives 1 and 2 are in a raid and then drives 3 and 4 are in another raid. I was trying to expand the OS partition on drive 1 because it was full. I took drive 1 out, put it in my Fedora 8 box as a secondary drive, booted up into Fedora, and saw it had the partition structure: / 8GB /var 4GB /swap 1GB and an "unknown" partition 101.4GB I did a cp -rfa on the / and /var files for a backup (I know, not the best way). Restarted my Fedora into Windows to take a look at it using Paragon Partition Manger. Restarted into Fedora and using gparted, formatted the "unknown" partition as ext3 - I think that is where I made my fatal mistake - and moved the /swap to the middle of the drive, moved the /var to the middle and expanded to 10GB, and then expanded / to about 50GB to fill up the rest. I had also took drive 2 out of the head node and into my Fedora, and saw it had the partition structure: /swap 15GB and an "unknown" partition 101.4GB Ok, now when I put everything back into the head node, and reboot, the BIOS sees all four drives, and from what I can tell, recognizes the first raid (of drives 3 and 4), but says it can only find one disk for the second raid (drives 1 and 2). I can't find any way around this. Looking at my /etc/raidtab file: raiddev /dev/md0 raid-level 1 nr-raid-disks 2 nr-spare-disks 0 persistent-superblock 1 device /dev/sdc1 raid-disk 0 device /dev/sdd1 raid-disk 1 raiddev /dev/md1 raid-level 0 nr-raid-disks 2 persistent-superblock 1 chunk-size 4 device /dev/sda4 raid-disk 0 device /dev/sdb2 raid-disk 1 It says it can bring up md0 ok, but not md1. Right now, I am going to try to restore the "unknown" partition that I deleted from drive 1 using the "unknown" partition from drive 2. Any ideas on how to get myself out of this mess? I feel like I really messed it up good. This is a server for our work, and we have a couple years worth of data on it, so I would really like to fix it rather than reinstall. Thank you greatly for any help! Jeff Sadino

7 15

fsck.ext4 huge memory usage
by James A. Peltier 04 Mar '10

04 Mar '10

I have a 5.4TB file system, ext4, that currently is reporting problems, however, every time I run fsck.ext4 on the file system, it grows to more than 17GB. Can anyone tell me WTF is going on here? Why is it using so much disk space? -- James A. Peltier Systems Analyst (FASNet), VIVARIUM Technical Director HPC Coordinator Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpeltier(a)sfu.ca Website : http://www.fas.sfu.ca | http://vivarium.cs.sfu.ca http://blogs.sfu.ca/people/jpeltier MSN : subatomic_spam(a)hotmail.com TEAMWORK There's power in numbers. Learn to work together.

1 0

Install Help
by Slack-Moehrle 04 Mar '10

04 Mar '10

Hi All, I have a new system that is dual AMD's. I have a CentOS 5.4 x64 dvd. I power on the machine It boots to the CentOS media I had in the dvd drive I start the install it comes up and asks me where I have CentOS, I select 'Local CD' and I get that a message saying CentOS install files cannot be found. Strange because it boots to it! What could be the issue? I have 1 320gb Sata Drive connected to onboard Sata and that is where I want to install. The DVD drive is connected IDE to the mobo I have two 3ware raid cards each can handle 8 drives, but I have not put drives in yet. I am just trying to make sure everything works before I go that route. The 16 drives will be storage only. Linux Software Raid. Any thoughts? -Jason

2 2

Re: [CentOS] Install Help
by Bo Lynch 03 Mar '10

03 Mar '10

On Wed, March 3, 2010 4:17 pm, Slack-Moehrle wrote: > Hi All, > > I have a new system that is dual AMD's. I have a CentOS 5.4 x64 dvd. > > I power on the machine > It boots to the CentOS media I had in the dvd drive > I start the install > it comes up and asks me where I have CentOS, I select 'Local CD' and I get > that a message saying CentOS install files cannot be found. Strange > because it boots to it! > > What could be the issue? Have you verified that packages actually exists on the DVD? Bo Lynch

3 2

puzzling md error ?
by John R Pierce 03 Mar '10

03 Mar '10

this has never happened to me before, and I'm somewhat at a loss. got a email from the cron thing... /etc/cron.weekly/99-raid-check: WARNING: mismatch_cnt is not 0 on /dev/md10 WARNING: mismatch_cnt is not 0 on /dev/md11 ok, md10 and md11 are each raid1's made from 2 x 72GB scsi drives, on a dell 2850 or something dual single-core 3ghz server. these two md's are in turn a striped LVM volume group dmesg shows.... md: syncing RAID array md10 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 143374656 blocks. md: syncing RAID array md11 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. md: using 128k window, over a total of 143374656 blocks. md: md10: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sdc1 disk 1, wo:0, o:1, dev:sdd1 md: md11: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:sde1 disk 1, wo:0, o:1, dev:sdf1 I'm not sure what thats telling me. the last thing prior to this in dmesg was when I added a swap to this vg last week. and mdadm --detail shows... # mdadm --detail /dev/md10 /dev/md10: Version : 0.90 Creation Time : Wed Oct 8 12:54:48 2008 Raid Level : raid1 Array Size : 143374656 (136.73 GiB 146.82 GB) Used Dev Size : 143374656 (136.73 GiB 146.82 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 10 Persistence : Superblock is persistent Update Time : Sun Feb 28 04:53:29 2010 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 UUID : b6da4dc5:c7372d6e:63f32b9c:49fa95f9 Events : 0.84 Number Major Minor RaidDevice State 0 8 33 0 active sync /dev/sdc1 1 8 49 1 active sync /dev/sdd1 # mdadm --detail /dev/md11 /dev/md11: Version : 0.90 Creation Time : Wed Oct 8 12:54:57 2008 Raid Level : raid1 Array Size : 143374656 (136.73 GiB 146.82 GB) Used Dev Size : 143374656 (136.73 GiB 146.82 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 11 Persistence : Superblock is persistent Update Time : Sun Feb 28 11:49:45 2010 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 UUID : be475cd9:b98ee3ff:d18e668c:a5a6e06b Events : 0.62 Number Major Minor RaidDevice State 0 8 65 0 active sync /dev/sde1 1 8 81 1 active sync /dev/sdf1 I don't see anything wrong here ? lvm shows no problems I detect either... # vgdisplay vg1 Volume group "vgdisplay" not found LV VG Attr LSize Origin Snap% Move Log Copy% Convert glassfish vg1 -wi-ao 10.00G lv1 vg1 -wi-ao 97.66G oradata vg1 -wi-ao 30.00G pgdata vg1 -wi-ao 25.00G pgdata_lss_idx vg1 -wi-ao 20.00G pgdata_lss_tab vg1 -wi-ao 20.00G swapper vg1 -wi-ao 3.00G vmware vg1 -wi-ao 50.00G # pvdisplay /dev/md10 /dev/md11 --- Physical volume --- PV Name /dev/md10 VG Name vg1 PV Size 136.73 GB / not usable 2.31 MB Allocatable yes PE Size (KByte) 4096 Total PE 35003 Free PE 1998 Allocated PE 33005 PV UUID oAgJY7-Tmf7-ac35-KoUH-15uz-Q5Ae-bmFCys --- Physical volume --- PV Name /dev/md11 VG Name vg1 PV Size 136.73 GB / not usable 2.31 MB Allocatable yes PE Size (KByte) 4096 Total PE 35003 Free PE 2560 Allocated PE 32443 PV UUID A4Qb3P-j5Lr-8ZEv-FjbC-Iczm-QkC8-bqP0zv

9 17

help with a dd bug
by Adrian Buciuman 03 Mar '10

03 Mar '10

Hi, Can somebody reproduce this bug? http://bugs.centos.org/view.php?id=4220 dd if=/dev/zero of=/dev/my_usb_stick_device_name bs=4096 count=10000 can not be stopped with ctrl-c and is not responding to signals (count=10000 can be modified to give you enough time to test) The bug has been closed with the following comment: "As said: dd is in an uninteruptable state when you do that. This is not a bug" This is wrong, because IMHO dd should receive the signal after it finishes the current read()/write() and returns to user space, but this is not happening. How can I reopen the bug? Thanks Adrian Buciuman

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CentOS-announce Digest, Vol 61, Issue 2
by centos-announce-request＠centos.org 03 Mar '10

03 Mar '10

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CEBA-2010:0127 CentOS 5 x86_64 libXi Update (Karanbir Singh) 2. CEBA-2010:0127 CentOS 5 i386 libXi Update (Karanbir Singh) 3. CESA-2010:0126 Important CentOS 5 x86_64 kvm Update (Karanbir Singh) 4. CESA-2010:0124 Important CentOS 5 i386 systemtap Update (Karanbir Singh) 5. CESA-2010:0124 Important CentOS 5 x86_64 systemtap Update (Karanbir Singh) 6. CEBA-2009:1623 CentOS 5 i386 conga Update (Karanbir Singh) 7. CEBA-2009:1623 CentOS 5 x86_64 conga Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Tue, 2 Mar 2010 17:57:24 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2010:0127 CentOS 5 x86_64 libXi Update To: centos-announce(a)centos.org Message-ID: <20100302175724.GA12862(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2010:0127 Upstream details at : http://rhn.redhat.com/errata/RHBA-2010-0127.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 3ebe43650e5acd054952fe329b4af700 libXi-1.0.1-4.el5_4.i386.rpm 4ccd13b371e6273470078bf6984d4b5b libXi-1.0.1-4.el5_4.x86_64.rpm 3a08958e0fee533541d7c565b93a2798 libXi-devel-1.0.1-4.el5_4.i386.rpm 88bee7169de14815b40fd52c60dedda2 libXi-devel-1.0.1-4.el5_4.x86_64.rpm Source: e39f5237a9eb62cc7586a93ee8c6ac8c libXi-1.0.1-4.el5_4.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Tue, 2 Mar 2010 17:57:24 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2010:0127 CentOS 5 i386 libXi Update To: centos-announce(a)centos.org Message-ID: <20100302175724.GA12846(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2010:0127 Upstream details at : http://rhn.redhat.com/errata/RHBA-2010-0127.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 9bfd13906abb08b8ea1066b7c69856ca libXi-1.0.1-4.el5_4.i386.rpm 15b1c00b6e72ae9f3d485a8ce826fdfb libXi-devel-1.0.1-4.el5_4.i386.rpm Source: e39f5237a9eb62cc7586a93ee8c6ac8c libXi-1.0.1-4.el5_4.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Tue, 2 Mar 2010 17:58:25 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0126 Important CentOS 5 x86_64 kvm Update To: centos-announce(a)centos.org Message-ID: <20100302175825.GA12945(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0126 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2010-0126.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 80eec9071001644433c4a526dabcaff8 kmod-kvm-83-105.el5_4.27.x86_64.rpm cbe4a31b0b830d8e9dd7f41c0c943fd3 kvm-83-105.el5_4.27.x86_64.rpm 1ae97673224f5781c65445c7e5a0e96e kvm-qemu-img-83-105.el5_4.27.x86_64.rpm 0512100a4083b1d1adaafab343911b69 kvm-tools-83-105.el5_4.27.x86_64.rpm Source: 61c218b3b4085e61b734831bb023fd9f kvm-83-105.el5_4.27.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Tue, 2 Mar 2010 17:59:18 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0124 Important CentOS 5 i386 systemtap Update To: centos-announce(a)centos.org Message-ID: <20100302175918.GA13006(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0124 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2010-0124.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 7ad6c7502f5c3ddca129374a98e848f4 systemtap-0.9.7-5.el5_4.3.i386.rpm 0751456116f2904b69ebd17effaf291f systemtap-client-0.9.7-5.el5_4.3.i386.rpm 4cccafd7c06ad61ac77bed5d2a1b2d5c systemtap-initscript-0.9.7-5.el5_4.3.i386.rpm 46d13b0848f33c70815d53e1b851d0e3 systemtap-runtime-0.9.7-5.el5_4.3.i386.rpm f05d799ddfc8570d109b5451f8537ebf systemtap-sdt-devel-0.9.7-5.el5_4.3.i386.rpm 9d9196838827fe7bf371cb6584b990ab systemtap-server-0.9.7-5.el5_4.3.i386.rpm 010d0e26ccc3da11e6f47c4f094072f5 systemtap-testsuite-0.9.7-5.el5_4.3.i386.rpm Source: c3f196bcc64925563f00461327d0e64d systemtap-0.9.7-5.el5_4.3.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 5 Date: Tue, 2 Mar 2010 17:59:18 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0124 Important CentOS 5 x86_64 systemtap Update To: centos-announce(a)centos.org Message-ID: <20100302175918.GA13019(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0124 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2010-0124.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: e5b4f800466d664dfdc959672b4b7af5 systemtap-0.9.7-5.el5_4.3.x86_64.rpm a7f70ed63dcd6d17c94f041759ff3a17 systemtap-client-0.9.7-5.el5_4.3.x86_64.rpm b3bc7b698f5b0a528308219d7817b209 systemtap-initscript-0.9.7-5.el5_4.3.x86_64.rpm 955061c92502da7b38cd754ff9da920b systemtap-runtime-0.9.7-5.el5_4.3.x86_64.rpm 06c9315e136138dad73d95f98015b4d1 systemtap-sdt-devel-0.9.7-5.el5_4.3.x86_64.rpm 8692372b3f6e87d57bf75a9d54cb6e0f systemtap-server-0.9.7-5.el5_4.3.x86_64.rpm d7791ca2389f41fa38e6c9a6f29a659d systemtap-testsuite-0.9.7-5.el5_4.3.x86_64.rpm Source: c3f196bcc64925563f00461327d0e64d systemtap-0.9.7-5.el5_4.3.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 6 Date: Tue, 2 Mar 2010 18:00:00 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2009:1623 CentOS 5 i386 conga Update To: centos-announce(a)centos.org Message-ID: <20100302180000.GA13067(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2009:1623 Upstream details at : https://rhn.redhat.com/errata/RHBA-2009-1623.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: c3e6008a4eb010296d06155aecd57a68 luci-0.12.2-6.el5.centos.1.i386.rpm 03a38afb3eea0ab4bac2ba0cf8f585e3 ricci-0.12.2-6.el5.centos.1.i386.rpm Source: 1a6e171f232ef653342a6e9b202e433d conga-0.12.2-6.el5.centos.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 7 Date: Tue, 2 Mar 2010 18:00:00 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2009:1623 CentOS 5 x86_64 conga Update To: centos-announce(a)centos.org Message-ID: <20100302180000.GA13080(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2009:1623 Upstream details at : https://rhn.redhat.com/errata/RHBA-2009-1623.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: f6418b7bdfa158c54e4f7817e3640fa5 luci-0.12.2-6.el5.centos.1.x86_64.rpm 87a61ef2b04bba8303df2187254d8fee ricci-0.12.2-6.el5.centos.1.x86_64.rpm Source: 1a6e171f232ef653342a6e9b202e433d conga-0.12.2-6.el5.centos.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 61, Issue 2 **********************************************

1 0

glusterFS
by m.roth＠5-cent.us 03 Mar '10

03 Mar '10

Anyone familiar with it? If so, a few questions: - is there one head server, so that anyone referring to the f/s talks to that server? - how transparent is FUSE to existing programs, or should I just use NFS? - how's the performance? mark

1 0

How do I create a new menu category in GNOME ?
by Niki Kovacs 03 Mar '10

03 Mar '10

Hi, The title says it all. My GNOME desktop is in French, so here's what my standard Applications (same word in french) menu looks like : Applications > Accessoires (Utilities) > Bureautique (Office) > Graphisme (Graphics) > Internet (Internet) > Son et vidéo (Sound and Video) Now I'm currently installing a medical application (Medintux) which consists of several different "modules", e. g. programs where each one does one thing. There are something like ten different modules, and I'd like to create a new category in my main menu, so I have : Applications > Medintux > User Management > Diagnostics > X-Rays > Scanner management > Prescriptions > ... Something like that. I'm already familiar with creating *.desktop files and putting them in /usr/share/applications and running update-desktop-database. But I can't seem to be able to create a new category. I found some probably related files in /usr/share/desktop-directories and tried to edit my custom medintux.directory file, but to no avail. Anyone here familiar with the innards of GNOME desktop menus? Cheers, Niki

3 9

DHCP client not working with Windows DHCP / dynamic DNS server
by Florin Andrei 03 Mar '10

03 Mar '10

# Broadcom Corporation NetXtreme BCM5754 Gigabit Ethernet PCI Express DEVICE=eth0 BOOTPROTO=dhcp HWADDR=00:22:19:XX:XX:XX ONBOOT=yes DHCP_HOSTNAME=centos.XXXXXXXXXX.local In this particular instance, it's a place where Windows is used for DHCP and DNS servers. :( I have no control over the Windows side of things. The Windows sysadmins claim I don't need a fixed IP address, because DNS will pick up the name after I make the DHCP request. The problem is, that doesn't happen, even though the DHCP client is correctly configured (see above). The system is vanilla CentOS 5.4, text-mode install, fully updated. I boot the CentOS system. Then, on another Linux machine, I do "host centos.XXXXXXX.local" and it returns host not found. However, if I do the same for other hostnames, DNS resolution works fine. Is there anything else I can do on my side to make it happen? Any particular options in dhclient.conf or something like that? -- Florin Andrei http://florin.myip.org/

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