CentOS 5 Hardware :: Using LSI Causing Reboot
May 16, 2011We are using 1 LSI card on our tester to run massive I/O actions, but it seems that after couple of hours (or something like 1 day) of using the LSI, the tester reboot itself.
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CentOS 5 :: Mod-php Causing Apache To Segfault?
Sep 22, 2010I have a newly installed centos 5.5 x86_64 running as a guest on a xen environment. I've installed httpd, mysql, php, mod-php, cacti and some how mod-php i causing apache to exit with segmentation fault. I don't understand whats causing the problem, I have similar boxes with the same setup that works.
[Wed Sep 22 09:19:47 2010] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Wed Sep 22 09:20:11 2010] [notice] child pid 3040 exit signal Segmentation fault (11)
CentOS 5 :: Determine What Is Causing High Load
Sep 12, 2011I am running a CentOS 5.6 32 bit installation under VMWare ESXi and have been experiencing some very high load values from time to time. The server is running multiple installations of gameservers, and the load fluctuates from around 1 to 9, with more or less the same amount of players playing (give or take 5-10 of a possible 80). I've been running DStat with almost all possible metrics, and, except for the large fluctuations in load, nothing else out of the ordinary seems to happen when load is rising. (Log data can be provided, if anyone wants to see it). Disk IO, Network throughput, memory consumption, CPU usage, process count, all stay at the same levels when the load is 1 as when it is 9. How I can begin to troubleshoot this, and find out why the load goes to such high values?
View 1 Replies View RelatedCentOS 5 :: NIC Driver Will Basically Crash/restart Causing No Connectivity For A Period Of Time?
Mar 17, 2010I'm using centos 5, kernel 2.6.18-164.11.1.el5I have occasional server network problems (the NIC driver will basically crash/restart causing no connectivity for a period of time) due to the marvell sky2 NIC driver being a problem, as discussed here: This essentially means the server is unreliable when under any kind of reasonable load, to put it mildly.Worse still, the driver problem has not been resolved in 2.6.18.x - but it seems to have been resolved in the latest Linux kernels.I really don't want to compile the kernel from source, etc, but it looks like I may have no choice.Is there a repo which has a pre-compiled 2.6.20+ or 2.6.30+ kernel which I can use,
View 8 Replies View RelatedCentOS 5 :: CentOS Auto Update Kernel And Reboot System?
Mar 17, 2010I am an old days RH release user(from 6.x) and just switching back from Debian/Ubuntu to CentOS on some servers, but I can not understand the kernel update strategy currently enabled in CentOS.There are two boxes, with almost identical installation, but recently there was an auto update of kernel on one box. This auto update also seems to issue an auto reboot on the machine, which is unacceptable on server machines.
View 2 Replies View RelatedCentOS 5 :: Can't Reboot After Update?
Oct 22, 2009I did a yum clean all then yum update and got all the 5.4 stuff at which point I rebooted it gets to the udev entry and dies. Any one have any sugestions on how to fix this?
View 10 Replies View RelatedCentOS 5 Server :: Reboot The Server With Centos 5.5 The SMB Deamon Doesn't Start?
Feb 22, 2011when I reboot the server with centos 5.5 the SMB deamon doesn't start?
View 2 Replies View RelatedCentOS 5 :: /dev/sda No Longer Exists After Reboot?
Aug 6, 2009After rebooting my centos server I no longer have a /dev/sda entry, nor any /dev/sd* entries. What could have gone wrong?
View 1 Replies View RelatedCentOS 5 :: Reset Eth0 Without Reboot
Jul 18, 2011after the 5.6 update I started loosing the connection to my router. Having had issues with routers before I assumed that the router was on its way out. However I happended to have a laptop handy the other day and thought I would give it a try (after eth0 went down), router was fine(same cable too). I have tried bringing eth0 up/down (gui and ifdown/ifup) and restarted the network(gui and cli) but it will not get an ip(as I recall it does recognize that the cable is connected). If I do a reboot, eth0 comes up immediately. The log just shows repeated dhcp requests. I tried a dhclient -r but it errors out with no link found. It has been doing this since 5.6 came out (roughly once a day) so I THINK that it is not a hardware issue(should have died completely by now if it was). PSU voltages show stable and unchanged. It does use the forcedeath driver. 5.6-64bit fully updated.
View 9 Replies View RelatedCentOS 5 :: Allow One User To Reboot System Only?
Sep 8, 2011I was wondering if anyone knew how to add a user/pass and allow them to issue the reboot command. Ideally, I dont want them to be able to see files/directories or anything else for that matter.I was thinking something along the lines of a chroot jail that has a single script that would call the reboot.
View 2 Replies View RelatedCentOS 5 Server :: Xend Not Running After Reboot
May 13, 2010service xend status returns nothing - simply moves to next line
service xend start does the same thing
xm list
ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
Error: Unable to connect to xend: No such file or directory. Is xend running?
CentOS 5 :: How To Know What Process Was Busying Before Forced Reboot
Mar 22, 2009My centos machine suddenly stuck, the hdd LED flashes constantly, and the system reacts to all my operations very slow. I even cannot log in to a native terminal (always timeout). I had no choice, I pressed the power button. Reboot once failed. The system failed to find mount points.
I inserted the installation disk into computer and entered rescue mode. But I found everything was there. And another reboot brought up the system. I wonder what was the process that stuck my system.
CentOS 5 :: Upgrade Caused Reboot Failure?
Apr 1, 2009At 4:00 pm on 4/1/2009 I accepted the offer to dowload and install a number of small improvements. This has always worked in the past. This time there were a few problems with the install, but I went ahead and rebooted. It stopped at grub, stage2.
I am now trying the rescue feature of my install CD. I will report on this later.
As for the always possible hardware failure, I have a raid setup, so I was not expecting this.
CentOS 5 :: 5.2 Hyper-V Server Time Changes On Reboot?
Jul 15, 2009I'm running a CentOS 5.2 vm on a W2K8 hyper-v core server. The problem I have is that when I reboot, the system time always resets itself to 6:00 am in the morning. I tried the /sbin/hwclock --systohc command but it hasn't taken hold.
View 1 Replies View RelatedCentOS 5 Networking :: Iptables Empty After Reboot?
Aug 5, 2009I have a strange problem with IpTables.after a server reboot, the complete rule-list of iptables is empty. After a manually start, all my old rules are there again.I checked chkconfig if autostart of iptables is enabled:chkconfig --list iptablesiptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
View 2 Replies View RelatedCentOS 5 Server :: Xend Not Running After Reboot?
Sep 7, 2009service xend status returns nothing - simply moves to next line.service xend start does the same thing
xm list
ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
Error: Unable to connect to xend: No such file or directory. Is xend running?
CentOS 5 :: IP Configuration Lost After Reboot / Get That Back?
Sep 16, 2009Google brought me no love on this one, tried searching here with little luck as well. So I'm hoping somebody vastly more experienced than I can shed some light on my plight.
The situation:
I have a CentOS 5.3 x64 server running the latest cPanel which works fantastic. I issued a graceful reboot and the server came back up (according to the DC) just fine to a login prompt. Apparently the system lost all of its IP address configuration. Primary IP, secondary IP's gateway, you name it and it was gone. Now my secondary IP's were showing in cPanel after I had the DC re-enter my main IP address/gateway. But listed as not active due to the fact that they were not anywhere to be attached to the interface. i.e. eth0:1 eth0:2 etc and so on.
I have no idea where to begin looking for this problem and am afraid to reboot it again (at least until I get my lantronix spider up there). I've never experienced this with any of my other CentOS/cPanel servers either. All similar configurations CentOS 5.3 x64, latest cPanel as well. My hardware is all Supermicro gear as well and has been solid in the past.
Maybe I'm just missing something, granted I've only been managing Linux based servers for about two years now. This is actually the first real problem I've ran into on any Linux distro, they are normally pretty solid. So I assume it's a configuration error on my part somewhere.
CentOS 5 :: Grow Volume/filesystem Without Reboot?
Oct 13, 2009I'm looking for insite on how it might be possible to grow an existingvolume/partition/filesystem while it's in active use, and without having to add additional luns/partitions to do it.For example the best way I can find to do itcurrently, and am using this in production, is you have a system using LVM managing a connected LUN (iSCSI/FC/etc), with a single partition/filesystem residing on it.To grow this filesystem (while it's active) you have to add a new LUN to the existing volume group, and then expand the filesystem. To date I have not found a way to expand a filesystem that is hosted by a single LUN.
For system context, I'm running a 150 TB SAN that has over 300 spindles, to which about 50 servers are connected. It is an equal mix of Linux, Windows, and VMware hosts connected via both FC & iSCSI... With both Windows & VMware, the aforementioned task of expanding a single LUN and having the filesystem expanded is barely a 1 minute operation that "Just Works".If you can find me a sweet way to seamlessly expand a LUN and have a Linuxfilesystem expanded (without reboot/unmount/etc)I have cycles to test out any suggested methods/techniques, and am more than happy to report the results for anyone else interested. I think this is a subject that many people would like to find that magic method to make all our lives much easier
CentOS 5 :: Raid 5 Grow Does Not Survive Reboot?
Jun 22, 2010I installed CentOS 5.5. After install, I decided to put 3 identical disk for raid 5. All the disks are IDE disk. Then I put a sata disk and partitioned it to add another partition to the raid 5 array. Everything works fine until I rebooted my system. After reboot, the sata partition I added into raid 5 is showing removed. I had to readd it using "mdadm --add" to make raid 5 array works.
View 5 Replies View RelatedCentOS 5 :: Swap Space Going Back To 0kB After Reboot?
Sep 22, 2010I had Oracle install on my machine and there were some ASM partitions. after uninstall of oracle some how it removed the swap space and now is showing:
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CentOS 5 :: Automatic Reboot On Ping Result?
Feb 15, 2011Is there any way to reboot my centos 5.2 server automatically once the ping result to my default gateway is continuously greater or equlls to 10 ms.
View 3 Replies View RelatedGeneral :: CentOS 5 Black Screen When Make Reboot?
Oct 18, 2010I'm writing from the IBM Thinkpad A30 with Linux CentOS! After installed CentOS I've see a message when the sistem start....and this message said: ACPI: Could not use ECDT. (think is a BIOS error....but this is what I've read with a Google search.....). After the first start I've make the update (suggested by the OS) and, after make the reboot....same problem. I see a black screen and the power light of the HD seems run....but don'a appear any sort of screen immages/text.
View 2 Replies View RelatedRed Hat :: After Fresh Install And Reboot - Get A Black Screen - CENTOS 5.5
Jan 26, 2011I am running a dell poweredge 2600 in which i just now did a fresh install of Centos 5.5 KDE. The install went perfectly with no hiccups or errors. I reboot the server and centos dose its normal checking everything and giving a Green"OK" or Red"Error" and everything seems to be fine. I then get to a black screen with a X mouse cursor, i can move the cursor freely and i can turn the Num Lock key on and off and i can do a Ctrl+Alt+F5 and then reboot with a Ctrl+Alt+Del smoothly, but i just cant get the centos to boot up all the way into the GUI.
View 3 Replies View RelatedCentOS 5 :: 5.1 Bash - After First Reboot After Installing In Text Mode
Dec 17, 2009I got this message after installing CentOS 5.1 in text mode and console:
It occures after the first reboot after installing:
I pushed TAB and get a list with possible commands.
I used "boot" but without success.
CentOS 5 Server :: Removal Of Gconfd Directories Causes Reboot?
Jul 27, 2011I run a centos 5.6 guest (webserver) in a KVM VM on centos 5.6. When I lost my gnome desktop, I received the suggestion to remove the gconfd stuff and reboot. I found two gconfd directories in /tmp and removed them. Now the webserver VM reboots contineously. I forced down the VM, rebooted the base system etc., but that did not help at all.
View 1 Replies View RelatedCentOS 5 :: Reboot Hang - Blank Screen Blinking Cursor?
Aug 19, 2009This is probably not possible, but just wondering, restarted centos 5.2 remotely, hung at shutdown, kvm'ed to see what was hanging it up, control c'ed and then ctl alt del, just trying to kill the process, was brought back to the login screen, but unable to type anything. Alt-f1 switched to a different virtual console, which was just a blank screen and a blinking cursor, but now able to type things. Want to avoid hard shutdown. Is there anyway to force shutdown/reboot the machine from this console?
View 1 Replies View RelatedCentOS 5 :: Blank Screen On Reboot After Install (not Intel DDC Issue)?
Oct 12, 2010I've been trying to install 5.5 here for the past few days, first from USB and now from the CDs, with no success. The problem occurs when I reboot after installing. After the BIOS has done it's thing I'm faced with a blank screen with a blinking cursor at the top left of the screen.
Initially I assumed that this was due to the intel driver problem which is reported in the release notes as a known issue, and the PC I'm installing on has intel graphics. However I have now done a text install and still have the same issue. I'm able to boot up the system using the CentOS live CD, which encounters no issues, and it mounts the local system no problem. After unmounting and remounting to get write access I'm able to change the device entry in /etc/X11/xorg.conf to have the Option "DDC" "false" entry. I can also see that the runlevel is set to 3 in /etc/inittab, still I get the blank screen on attempting to boot.
Any ideas on what might be wrong here? It really sounds like the intel driver problem people have described, and yet I can't even boot in text mode so that doesn't seem to be the case here. Could there be something wrong with the bootloader?
CentOS 5 Hardware :: Servers Reboot Without Any Reason (Dell Poweredge)
Dec 9, 2010we have 22 servers Dell (20 Poweredge R210 + 2 Poweredge R310) with CentOS 5.5 x86_64 (kernel 2.6.18-194.26.1.el5). Half of these are on different rack. During the day, some server reboot without any reason and the messages log file had no evidence of what happened.
From /var/log/messages:
...
Dec 8 14:10:02 hadoop011 snmpd[3029]: Received SNMP packet(s) from UDP: [172.27.1.21]:50825
Dec 8 14:10:02 hadoop011 snmpd[3029]: Connection from UDP: [172.27.1.21]:50825
Dec 8 14:15:26 hadoop011 syslogd 1.4.1: restart.
[Code].....
Some minutes after the reboot, messages log this error: Dec 8 14:18:14 hadoop011 Server Administrator: Instrumentation Service EventID: 1404 Memory device status is critical Memory device location: DIMM_A3 Possible memory module event cause:Multi bit error encountered.
Is it possible that 20% (circa) of 60 memory bank are broken? By the way, memory bank have Lifetime warranty from Kingston. If I reboot again the server affected by this error, the error disappear from messages log file and from OpenManage Web interface.
Is it possible that is a CentOS bug? I had search some relative bugs on Bugzilla but without any results.
CentOS 5 Server :: After Fresh Install And Reboot Getting Black Screen
Jan 26, 2011I am running a dell poweredge 2600 in which i just now did a fresh install of Centos 5.5 KDE. The install went perfectly with no hiccups or errors. I reboot the server and centos dose its normal checking everything and giving a Green"OK" or Red"Error" and everything seems to be fine. I then get to a black screen with a X mouse cursor, i can move the cursor freely and i can turn the Num Lock key on and off and i can do a Ctrl+Alt+F5 and then reboot with a Ctrl+Alt+Del smoothly, but i just cant get the centos to boot up all the way into the GUI.
View 16 Replies View RelatedCentOS 5 Server :: ISCSI Volumes No Longer Mount After Reboot?
Sep 22, 2011We have a Centos 5.6 server mounting two iSCSI volumes from an HP P2000 storage array. Multipathd is also running, and this has been working well for the few months we have been using it. The two volumes presented to the server were created in LVM, and worked without problem.We had a requirement to reboot the server, and now the iSCSI volumes will no longer mount. From what I can tell, the iSCSI connection is working ok, as I can see the correct sessions, and if I run 'fdisk -l' I can see the iSCSI block devices, but the O/S isn't seeing the filesystems. Any LVM command does not show the volumes at all, and 'vgchange -a y' only lists the local boot volume, not the iSCSI volumes. My concern is that, the output of 'fdisk -l' says 'Disk /dev/xxx doesn't contain a valid partition table' for all the iSCSI devices. Research shows that performing the vgchange -a y command should automatically mount any VG's that aren't showing, but it doesn't work.
There's a lot of data on these iSCSI volumes, and I'm no LVM expert. I've read that some have had problems where LVM starts before iSCSI and things get a bit messed up, but I don't know if this is the case here (I can't tell), but if there's a way of switching this round that might help, I'm prepared to give it a go.There was absolutely no indication there were any problems with these volumes, so corruption is highly unlikely.