Discuss May 2010

discuss@lists.centos.org

270 participants
215 discussions

Is every CentOS release supported for 7 years?
by Aniruddha 08 Jun '10

08 Jun '10

Hi, I've read some posts in the forums which seems to indicate that not every CentOS version is well supported. Is it possible to install CentOS 5.5 on a server and only apply security updates for 7 years? Or is the preferred way to upgrade to each minor version? Thanks in advance! Relevant forum quotes: Probably not relevant to the problem; however, the current release is 5.4 - 5.3 is getting seriously obsolete with respect to security problems and bugs. http://centos.caosity.org/modules/newbb/viewtopic.php?viewmode=flat&order=A… If you really mean 5.0, it is seriously obsolete and has numerous known bugs and security issues that have been fixed in subsequent updates. Obsolete releases are not supported, nor is it advisable to be installing or running them. See the CentOS 5.5 Release Notes for details. https://www.centos.org/modules/newbb/viewtopic.php?topic_id=26339&forum=37

14 24

Can't print a pdf?
by MHR 02 Jun '10

02 Jun '10

I just had a strange occurrence. I was printing out some PDFs and I pulled one down off the web (my wireless bill) and tried to print page 1. My browser properly fired up AR9, but nothing printed. I tried agian, still nothing. I saved the file, opened it with the Document Viewer and it can't print the file either. I tried opening it with GIMP, and it gets this error: Opening '/home/mhr/Documents/pdfs/vzwA0418.pdf' failed: Plug-in could not open image I couldn't find any related data in the logs (spooler logs are all empty, nothing in dmesg). I tried disabling and enabling the printer, then turning it off and on to no effect (which is not too surprising). Anyone have a clue where I should look or what to do? Thanks. mhr

6 18

bogus bond0 device showing up in /proc/net/dev
by Tom Georgoulias 02 Jun '10

02 Jun '10

I'm running into a situation where a bogus bonded interface named "bond0" is being created, in addition to the desired "bond2" interface. Can anyone confirm this? Anyone know why it's happening or what I do to get rid of it? I wanted to start my numbering scheme at 2 instead of 0, which I didn't think would be a problem. As you can see, I have no reference to bond0 in any of my configs: # grep bond /etc/modprobe.conf alias bond2 bonding # ifconfig -a | grep bond bond0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 bond2 Link encap:Ethernet HWaddr XXXXXXXXXXXXXXXXX # cat /etc/sysconfig/network-scripts/ifcfg-bond2 DEVICE=bond2 IPADDR=XXXXXXXXX NETMASK=XXXXXXXX NETWORK=XXXXXXXXX USERCTL=no BOOTPROTO=none ONBOOT=yes BONDING_OPTS="mode=1 miimon=100" # cat /etc/sysconfig/network-scripts/ifcfg-eth2 DEVICE=eth2 MASTER=bond2 SLAVE=yes HWADDR=XXXXXXXXXXXX ONBOOT=yes BOOTPROTO=none USERCTL=no # cat /etc/sysconfig/network-scripts/ifcfg-eth3 DEVICE=eth3 MASTER=bond2 SLAVE=yes HWADDR=XXXXXXXXXX ONBOOT=yes BOOTPROTO=none USERCTL=no The bond0 interface isn't doing any harm, as far as I can tell, except adding bogus data to ifconfig output and extra, useless charts in our system performance monitoring tools. # cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.4.0 (October 7, 2008) Bonding Mode: load balancing (round-robin) MII Status: down MII Polling Interval (ms): 0 Up Delay (ms): 0 Down Delay (ms): 0 # cat /proc/net/bonding/bond2 Ethernet Channel Bonding Driver: v3.4.0 (October 7, 2008) Bonding Mode: fault-tolerance (active-backup) Primary Slave: None Currently Active Slave: eth2 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: eth2 MII Status: up Link Failure Count: 0 Permanent HW addr: XXXXXXXXXXXX Slave Interface: eth3 MII Status: up Link Failure Count: 0 Permanent HW addr: XXXXXXXXXXXXXX Any help is appreciated. Thanks, Tom

2 1

ATI Proprietary Drivers LAG
by Adryan Pop 02 Jun '10

02 Jun '10

I've installed CentOS 5.5, fixed my problems with my network card driver, and and I've followed this: http://wiki.centos.org/AdditionalResources/HardwareList/AtiDriver , downladed latest ati driver, restarted, screen resolution is fixed, but everything lags. ATI Radeon HD 5470 1GB this is the output of "lspci -v" *01:00.0 VGA compatible controller: ATI Technologies Inc Manhattan [Mobility Radeon HD 5000 Series] (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Unknown device 1bf2 Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at d0020000 (64-bit, non-prefetchable) [size=128K] I/O ports at d000 [size=256] Expansion ROM at d0000000 [disabled] [size=128K] Capabilities: <access denied> *

5 6

Shutdown/poweroff does not power off machine
by Scot P. Floess 02 Jun '10

02 Jun '10

I've got a Dell Optiplex GX240 I am running CentOS 5.4 (kernel 2.6.18-164.9.1.el5.centos.plus)... When I had Fedora 11 and 12 on it, I could issue a poweroff command and the machine would power itself off. However, under CentOS it doesn't turn the machine off whatsoever. When it completes, the machine is still running with a message of "system halted." Then I have to physically hit the power button to turn it off... I believe at some point I did try to issue a shutdown command - but had the same results... Anyone have any recommendations or suggestions? Thanks ahead of time :) Scot P. Floess 27 Lake Royale Louisburg, NC 27549 252-478-8087 (Home) 919-890-8117 (Work) Chief Architect JPlate http://sourceforge.net/projects/jplate Chief Architect JavaPIM http://sourceforge.net/projects/javapim Architect Keros http://sourceforge.net/projects/keros

6 15

autoexpect?
by hadi motamedi 02 Jun '10

02 Jun '10

Dear All I have received a new centos server that does contain 'expect' but it does not contain 'autoexpect' . Is there any way to add 'autoexect' to it? Thank you

5 7

installing
by mattias 01 Jun '10

01 Jun '10

yes a stupid question i no but can i install centos on only 10 gbdisc space without x and gnome and kde with the base package group etc

5 5

Broken repo / mirrors?
by Robert Heller 01 Jun '10

01 Jun '10

I fixed my earlier problem with a 'yum clean all', now I am getting this problem: 'Package does not match intended download' for both device-mapper and net-snmp-libs, for ALL of the mirrors. Log of the output is attached. -- Robert Heller -- Get the Deepwoods Software FireFox Toolbar! Deepwoods Software -- Linux Installation and Administration http://www.deepsoft.com/ -- Web Hosting, with CGI and Database heller(a)deepsoft.com -- Contract Programming: C/C++, Tcl/Tk Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: mirror.vcu.edu 0 packages excluded due to repository priority protections Setting up Update Process Resolving Dependencies --> Running transaction check ---> Package device-mapper.i386 0:1.02.39-1.el5_5.2 set to be updated ---> Package device-mapper-event.i386 0:1.02.39-1.el5_5.2 set to be updated ---> Package lvm2.i386 0:2.02.56-8.el5_5.4 set to be updated ---> Package net-snmp-libs.i386 1:5.3.2.2-9.el5_5.1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Updating: device-mapper i386 1.02.39-1.el5_5.2 updates 724 k device-mapper-event i386 1.02.39-1.el5_5.2 updates 20 k lvm2 i386 2.02.56-8.el5_5.4 updates 2.5 M net-snmp-libs i386 1:5.3.2.2-9.el5_5.1 updates 1.3 M Transaction Summary ================================================================================ Install 0 Package(s) Upgrade 4 Package(s) Total size: 4.5 M Total download size: 2.0 M Is this ok [y/N]: Downloading Packages: http://mirror.vcu.edu/pub/gnu%2Blinux/centos/5.5/updates/i386/RPMS/device-m…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.liquidweb.com/CentOS/5.5/updates/i386/RPMS/device-mapper-1.0…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.adams.net/centos/5.5/updates/i386/RPMS/device-mapper-1.02.39…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.steadfast.net/centos/5.5/updates/i386/RPMS/device-mapper-1.02…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.nexcess.net/CentOS/5.5/updates/i386/RPMS/device-mapper-1.02.3…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.igsobe.com/centos/5.5/updates/i386/RPMS/device-mapper-1.02.3…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.raystedman.net/centos/5.5/updates/i386/RPMS/device-mapper-1.0…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.ecvps.com/centos/5.5/updates/i386/RPMS/device-mapper-1.02.39…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.kernel.org/centos/5.5/updates/i386/RPMS/device-mapper-1.02.3…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.rackspace.com/CentOS/5.5/updates/i386/RPMS/device-mapper-1.02…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.vcu.edu/pub/gnu%2Blinux/centos/5.5/updates/i386/RPMS/net-snmp…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.liquidweb.com/CentOS/5.5/updates/i386/RPMS/net-snmp-libs-5.3…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.adams.net/centos/5.5/updates/i386/RPMS/net-snmp-libs-5.3.2.2…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.steadfast.net/centos/5.5/updates/i386/RPMS/net-snmp-libs-5.3.…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.nexcess.net/CentOS/5.5/updates/i386/RPMS/net-snmp-libs-5.3.2.…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.igsobe.com/centos/5.5/updates/i386/RPMS/net-snmp-libs-5.3.2.…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.raystedman.net/centos/5.5/updates/i386/RPMS/net-snmp-libs-5.3…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.ecvps.com/centos/5.5/updates/i386/RPMS/net-snmp-libs-5.3.2.2…: [Errno -1] Package does not match intended download Trying other mirror. http://mirrors.kernel.org/centos/5.5/updates/i386/RPMS/net-snmp-libs-5.3.2.…: [Errno -1] Package does not match intended download Trying other mirror. http://mirror.rackspace.com/CentOS/5.5/updates/i386/RPMS/net-snmp-libs-5.3.…: [Errno -1] Package does not match intended download Trying other mirror. Error Downloading Packages: 1:net-snmp-libs-5.3.2.2-9.el5_5.1.i386: failure: RPMS/net-snmp-libs-5.3.2.2-9.el5_5.1.i386.rpm from updates: [Errno 256] No more mirrors to try. device-mapper-1.02.39-1.el5_5.2.i386: failure: RPMS/device-mapper-1.02.39-1.el5_5.2.i386.rpm from updates: [Errno 256] No more mirrors to try.

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xulrunner 1.9.0.19-1: Does it exist or what?
by Robert Heller 01 Jun '10

01 Jun '10

According to 'yum info xulrunner' version 1.9.0.19, release 1.el5_5 exists and is an available package. But when I try to update it, yum claims there is nothing to do and when I try a general update, yum complains that it cannot update firefox because it cannot find xulrunner >= 1.9.0.19-1. What is going on here? I am doing this on a desktop x86_64 system that I recently brought up to CentOS 5.5, using the DVD ISO I downloaded to my laptop. I'd like to finish this update, but I am having this strange problem. I am getting the same problem on my (i686) laptop. I'm guessing that the updates repos are presently broken? -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller(a)deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/

4 6

Re: [CentOS] Multipathing with Sun 7310
by Alexander Dalloz 31 May '10

31 May '10

> Hi Alexander, > > thanks for replying, here's my current multipath.conf: > > defaults { > user_friendly_names yes > } > > blacklist { > devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" > devnode "^(hd|xvd|vd)[a-z]*" > wwid "*" > } > > blacklist_exceptions { > wwid "3600144f0fdf58b5c00004bc738070001" > > devices{ > device { > vendor "SUN" > product "Sun Storage 7310" > } > } > } > > devices { > device { > vendor "SUN" > product "Sun Storage 7310" > path_grouping_policy failover > getuid_callout "/sbin/scsi_id -g -u -s /block/%n" > prio_callout "/sbin/mpath_prio_rdac /dev/%n" > features "0" > failback immediate > rr_weight uniform > no_path_retry queue > rr_min_io 1000 > } > } > > I added "path_grouping_policy failover" because of your message. I also > noticed, you have path_grouping_policy specified twice; is this on > purpose? Sorry, that was a copy&paste&adjustment error on my side. Just decide for 1 path_grouping_policy. You can find details about possible settings on http://www.centos.org/docs/5/html/5.2/DM_Multipath/config_file_devices.html > Also, when I activate 'hardware_handler "1 rdac"', the box does not boot > any more with some rdac driver error message that I can catch since it > scrolls by fast... Ok, take it out then. > with the above multipath.conf it gets even stranger: > > [root@dev-db1 ~]# multipath -ll > sdd: checker msg is "readsector0 checker reports path is down" > sdh: checker msg is "readsector0 checker reports path is down" > sdi: checker msg is "readsector0 checker reports path is down" > sdj: checker msg is "readsector0 checker reports path is down" Did you try by setting following option? path_checker rdac > C9 Inquiry of device </dev/sda> failed. > C9 Inquiry of device </dev/sde> failed. > mpath0 (3600144f0fdf58b5c00004bc738070001) dm-0 SUN,Sun Storage 7310 > [size=50G][features=1 queue_if_no_path][hwhandler=0][rw] > \_ round-robin 0 [prio=0][active] > \_ 0:0:1:0 sda 8:0 [active][ready] > \_ 1:0:0:0 sde 8:64 [active][ready] At least I see 1 path group with 1 path per HBA for the LUN you have whitelisted. > however, the system "lives happily", despite the error messages. Did you test so far a failover case? Does the other paths come up if the active ones fail? What device-mapper-multipath knows about SUN storage system by compiled in default values can be queried by multipathd -k"show config" | grep -A8 -B1 "SUN" Ah, while coming to an end with this mail and considering to check upstream (http://christophe.varoqui.free.fr/) whether they know about your specific storage device, I found the infos you need to configure! wikis.sun.com/download/attachments/186238602/2010_Q1_ADMIN.pdf Page 107+108 gives you all required / SUN recommended settings: device { vendor "SUN" product "Sun Storage 7310" getuid_callout "/sbin/scsi_id -g -u -s /block/%n" prio_callout "/sbin/mpath_prio_alua /dev/%n" hardware_handler "0" path_grouping_policy group_by_prio failback immediate no_path_retry queue rr_min_io 100 path_checker tur rr_weight uniform } I guess ALUA is enabled by default on the SUN storage 7310, but check it. > Jens Neu > Health Services Network Administration Regards Alexander

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Discuss May 2010