Hardware :: Kernel Panic After Changing Motherboard - Volume Group Missing?
Jun 11, 2010
I have a CentOS 5.4 storage server with LVM/RAID1 setup, I need to change the motherboard from Gigabyte GA-G31M-ES2C to Asus P5K-E. After the switch, I got kernel panic during boot (the following is copied manually from the screen, is these stuff recorded somewhere in the log? I checked /var/log/messeges but didn't find anything):
Code:
Scanning and configuring dmraid support
md: Autodetecting RAID arrays
md: autorun....
md: ... autorun DONE
[code]....
I used CentOS CDROM and entered rescue mode to take a look, some findings:
1. Initially the drive label is different from my old system, for example the old sdb became sdc. I switched the SATA cable around to get this sorted out except one IDE drive (originally hda, now hde), but this drive is not used in RAID
2. After the label is fixed, I used mdadm to check RAID1 devices (md0/1/2/3), it seems each device is missing a drive (originally md0 is created by sda1+sdb1, now it's just sdb1, and thus degraded). I used mdadm to re-add the missing drive, mdadm --detail shows everything is fine now.
3. Step 2 didn't fix the error, so I "chroot /mnt/sysimage/" and took a look around, all the directories seem fine, include the ones on "main" volume group. vgscan/vgdisplay/lvdisplay shows all the vg and lv as they should be.
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Oct 29, 2009
I can cause the kernel to panic immediately with the following command. lvcreate --snapshot --name Snap --extents 100%FREE VolGroup00/LogVol00 The last line of the panic message is "<0>Kernel panic - not syncing: Fatal exception" If I create a snapshot of any other volume it works just fine. It only panics on LogVol00 which is my root fs.
I'm running 5.4 after update from 5.3. It didn't work with 5.3 either. This is a 32-bit guest running in VMWare Server 2.0.1 which is running on FC10 x86_64. I've tried the guest in both UP and SMP (2 cores) modes and observed no difference.
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Mar 20, 2011
I just imaged my RHEL 4 system that was running on a Dell Poweredge 2950 server using Acronis software and I restored the image to a VmWare virtual machine.
Dell Poweredge 2950 - RAID 5
VmWare - using ESX 4.0
OS - Red Hat Enterprise Linux 4 ES Update 5 x64
kernel - 2.6.9-55.0.9.ELsmp
I'm getting the following when I try to boot on the new virtual machine. I'm thinking it has to do with the fact that it's new hardware and it's having trouble either finding the right drivers or pointing to the correct place.
"No Volume Groups found
Volume Group "Volgroup00" not found
ERROR: /bin/lvm exited abnormally! (pid505)
mount: error 6 mounting ext3
mount: error 2 mounting none
switchroot: mount failed: 22
umount /initrd/dev failed: 2
Kernel panic - not syncing: Attempted to kill init!"
I was able to boot into Linux rescue mode using the boot CD. Then I typed:
#chroot /mnt/sysimage
Here's all the info from the commands I typed:
#ldd /bin/bash
libtermcap.so.2 => /lib64/libtermcap.so.2
libdl.so.2 => /lib64/libdl.so.2
libc.so.6 => /lib64/tls/libc.so.6
/lib64/ld-linux-x86-64.so.2
#uname -a
Linux localhost.localdomain 2.6.9-89.EL x86_64
#df -h ....
I've tried the following:
1. mkinitrd -v -f /boot/initrd-2.6.9-55.0.9.EL.img 2.6.9-55.0.9.EL
2. modified the device.map to point to /dev/sda3
3. changed the SCSI controller in Vmware to use BusLogic instead of LSI Logic. (didn't work because I'm running 64 bit.. gave me an error message)
4. grub-install --recheck /dev/sda
5. tried booting to differerent OS versions (i.e. 2.6.9-55.0.6, etc.). I tried all of the versions listed in the boot menu.
None of these worked.
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Aug 7, 2015
This is a problem about linux-kernel-3.16-0-4-amd64 and LVM, I guess. I decided to write this here in case other users who installed their debian system with encryption enabled experience this problem with a recent kernel upgrade.
I use debian jessie. Today I gave the command:
Code: Select allapt-get upgrade
There was a linux-kernel upgrade to 3.16-0-4-amd64 among other packages to be upgraded.
After this upgrade my computer cannot boot anymore.
I get following error:
Code: Select allVolume group "ert-debian-vg" not found.
Skipping volume group "ert-debian-vg"
Unable to find LVM "volume ert-debian-vg/root"
Volume group "ert-debian-vg" not found
Skipping volume group "ert-debian-vg"
Unable to find LVM "volume ert-debian-vg/swap_1"
Please unlock disk sd3_crypt:
And it does not accept my password.
I used rescue environment on debian jessie netinst iso and decrypted the partition and took a backup of my /home. Now I have not much to lose if I reinstall my system but I still want to fix this problem if possible.
I have reinstalled the kernel using debian jessie netinst rescue iso but nothing changed.
I have Timeshift snapshots located at /home/Timeshift but timeshift --rescue command cannot find a backup device, it sees the device as crypted. If I could restore a snapshot it would be very easy to go back in time and get rid of this problem. It would not be a real solution, however.
There is not any old kernel option in GRUB menu. So removing the latest one does not seem as an option.
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Oct 4, 2009
I have gone through all the kernel config options repeatedly, but everytime I get the same error after running my configured kernel.
To begin with, after unpacking the kernel I get Undefined video mode numer: 305 and then a selection of video modes appears.
Why are the standard settings in my lilo 1024x768x256 (vga 773) not accepted?
VFS: Cannot open root device "808" or unknown block(8,8) Please append a correct "root"=" boot option; here are the available partitions: Kernel panic- not syncing :VFS: Unable to mount root fs on unknown block(8,8)
My partitions are ext2, and this format (as well as other formats) are compiled in the kernel.
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Jun 4, 2010
I did the latest patch/update to lucid this morning and it would appear that my Volume control has gone missing from the task bar. There doesn't seem to be a volume control in Applications > Sounds & Video either. I am sure this has to do with the patch upgrade that I installed as everything was working fine before. For that matter, I had no system sounds either and it took a power off reboot for that to come back. My Music program (atunes) is not working properly either and keeps locking up. How do I reverse this patch or get my system back to a functional state?
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Jan 22, 2011
I don't know much about lvm and I've managed to screw up a drive. I had a 500GB drive with FC14 on it and I wanted to copy over a load of data to my new 1TB that was replacing it. I set up my new install the same way as the old...including the same volume names (error number 1 I think) I successfully mounted the old/500GB drive (using vgscan and vgchange -a y etc.) using a laptop (running FC13) and an external hdd cradle. I could access the files I wanted but this wasn't the machine I wanted to copy them to (I was doing this while waiting for the install to finish on the new drive).
When I tried the same process on the new install I found that having two lvm with the same name meant I couldn't mount the external one. So I opened the disk utility (palimsest) and was going to change the name of the old volume group but it wouldn't let me do that. I then thought maybe I could get away with just changing the name of the partition where the files were and maybe I could add it to the mounted group or something so I changed it to lv_home2. This changed the name of my new/1TB lv_home to lv_home2 as well. So thinking that wasn't the answer I just changed the name of the new lv_home2 back to lv_home.
From that point on I haven't been able to see the old drives partitions (the new volume group still works so far). I has a physical volume but the volume group and volume names are gone from view. When I try to vgscan on my main computer or the laptop I had it working on earlier I get:
[Code]....
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Dec 1, 2010
I'm rearranging a bunch of disks on my server at home and I find myself in the position of wanting to move a bunch of LVM logical volumes to another volume group. Is there a simple way to do this? I saw mention of a cplv command but this seems to be either old or not something that was ever available for linux.
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Apr 8, 2009
Dual PII 400, 512Mb with a Promise SuperTrak 100 IDE Array Controller. At present I have only one drive on the controller, configured for 1 JBOD array. I install FC9 with no problem. New partition is created and formatted, Grub is installed, and then... Grub is found and booted, but then I get:
Reading all physical volumes. This may take a while... No volume groups found Volume group "VolGroup00" not found Unable to access resume device (/dev/VolGroup00/LogVol01) mount: could not find filesystem '/dev/root' I can boot in rescue mode, chroot to the installed system. I changed the kernel boot parm "root=/dev/VolGroup00/LogVol00"
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Jan 17, 2010
I have a newly installed CentOS 5.4 on Gigabyte G31M-ES2C, I had to change the motherboard since it has some problems. Unfortunately the new motherboard is a rev 2.x board, which has a different onboard NIC (old one is RTL 8102E, new one is AR8132), so now my ethernet connection doesn't work anymore (no eth0 device), I assume I need to install a new driver for the AR8132? If so, what's the steps to do so?lspci shows Ethernet controller as: Attansic Technology Corp. Atheros AR8132 / L1c Gigabit Ethernet Adapter (rev c0)
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Sep 11, 2011
Got this new motherboard and it's running 11.4 of Opensuse and it works great. Even got the DVI working with the monitor with help of instructions I found here. However the sound is poor and the volume controls just as bad. According to the motherboard docs it has THX Tru Studio sound pro, a Intel H67 (B3) chipset. Six audio ports. And the chipset integration by Realtek ALC837. I have tried to find this information in the sound setup with no luck. What was selected was the Intel model (no other specifics was found). According to the Alsamixer it says HDA Intel PCH and the card and chip is set as PulseAudio. What should the sound card be set to other than Intel?
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Jun 15, 2010
I have recompiled a few kernels, but all on 32bit systems so not sure if that has anything to do with it.
Running Arch Linux 64bit, most recent version.
Kernel Output:
Code:
My first thoughts was that it might be my grub bootloader configuration, so had a big play around with that but it didn't fix it. Also made sure support was built for filesystems. However almost all that Fstab mounts are ext3 anyway, and certainly the root and /boot are. Now thinking it may be a memory error so will run a check when I shutdown.
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Feb 13, 2011
Dell laptop booting from a USB stick with a CentOS 5.5 minimum installation.
Uncompressing Linux...OK, booting the kernel.
Red Hat nash version 4.2.1.13 starting
sda: assuming drive cache: write through
sda: assuming drive cache: write through
mount: error 6 mounting ext3
mount: error 2 mounting none
switchroot: mount failed: 22
umount /initrd-dev failed: 2
Kernel panic - no syncing: Attempted to kill init!
1. Does minimum installation not drop on a kernel or initrd with ext3 support? I can't imagine that's true, but have to ask.
2. The USB stick is single partition ext3. Maybe there is some limitation specifically related to USB stick booting that requires boot to be FAT16 or FAT32? Except the CentOS 5.5 installer refuses to let me install on either FAT.
3. How can I do the equivalent of lsmod on a linux installation that will not boot? i.e. I have CentOS x86_64 running in VirtualBox, I can plug the USB stick in there, so how do I get information on the USB stick's kernel and initrd if I can't boot from it?
4. Is it possible to rebuild the i386 based initrd on this USB stick, when the computer is not booted from that stick, with a system that's x86_64 based?
System Info:
Dell Latitude i686 Laptop which has run CentOS 5.5 and Fedora 12,13,14 in the past, and boots from Fedora 14 Live CD transferred to a USB stick. So I know USB booting is possible on this machine, and this stick.
The process of creating the stick:
CentOS 5.5 i386 on a USB stick. Old Dell i686 laptop which has previously run CentOS 5.5 installed from DVD, and has successfully booted from this same USB stick holding transferred Fedora 12,13,14 Live CDs. CentOS 5.5 was installed onto the USB drive directly by the CentOS 5.5 DVD installer (running virtualized in VirtualBox 4.02 on Mac OS X 10.6.5.). No errors or complaints during installation.
For whatever reason, the installer did not do some things correctly. First Grub wasn't working correctly, I got that sorted out and have the Grub+CentOS splash screen, it finds vmlinuz and the initrd, and then I get a kernel panic.
Ext3 was built into the kernel and that's why I'm getting this message. I do not know how the installer would have dropped a kernel or initrd during instalation that that don't contain such a basic thing that obviously comes in linux kernel 2.6.18-89 EL.
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Dec 31, 2008
I have the following strange thing with a RHEL4 installation. Since last week, the system did a reboot and now something is really fucked up. During boot we get the following messages (don't care about 'strange' typo's, my colleague typed it 'blind' from the screen)
Code:
The strange thing is that we never see a 'could not mount blabla' or similar messages. First we thought it was a failing kernel update by plesk, but even after manually updating the kernel with RHN RPM's, still the same message. Booting with rescue mode and then chroot the system works. After that we even can start things like plesk and so on.
We double checked things with another RHEL4 install, and at least two things were odd:
1: the working machine has /dev/dm-0 and /dev/dm-1, the broken one doesn't
2: some files on /dev didn't have group root, but 252
We tried to recreate the /dev/dm-X nodes with [vgmknodes -v], output:
Code:
A fdisk /dev/sda shows: /dev/sda2 XX XXX XXXXX Linux LVM (I removed the numbers because this line is from another machine, but rest was identical)
We have a copy of the boot partition so if one need more info please let me know.
grub.conf:
Code:
last part of init extracted from initrd-2.6.9-78.0.8.ELsmp.img:
Code:
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Jun 25, 2010
I am running an Hp Pavillion dv6000 with the Broadcom card that never seems to work for Linux. I recently talked with my friend who said he found a way to get it work.following his instructions I opened Synaptic and checked the package bmcwl-kernel-source to be installed.I went through the process of it all and it said it had install successfully. I restarted the computer and when I tried to enter my operating system I got this error "Kernel panic - not syncing : VFS : Unable to mount root fs on unknown - block(8,1)"
I have previous versions of Linux on my computer so I can still get in to those if need be but I don't know how to undo what I did or why it isn't working for that matter. Does anyone have any ideas as to why I am getting this error and how I can fix it?
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Jan 20, 2010
I have one machine where I have several versions installed on different partitions. The base partition (/dev/hda1) is Slack 12.1. On a spare partition (/dev/hdc4) I had installed Slackware64-current. Last week I slackpkg upgraded and installed the 2.6.32.2 kernel, and now that partition will not boot. I know that with the new kernels the hd* designation has been removed, and have already redone that fstab (accessing it from a different boot) to reflect the sd*. Here is the slack64 section of my lilo.conf:
Code:
# Linux bootable partition config begins
image = /other/spare4/boot/vmlinuz
[code]....
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Mar 17, 2011
I have one HD and a VG spanning it's entirety. I resized a LV and freed up 10GB within the VG, but I want the 10GB outside the boundary of the VG so I can install another OS for testing purposes. For some reason I'm not able to do this. I don't know if I understand LVMs correctly. Maybe there can be only one VG on a HD?
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Mar 30, 2011
Currently, I am at 99% capacity with a 1TB hard drive (sda). I want to add an extra 2TB storage (sdc) by extending the current volume group using LVM.
[URL]
I can see that it is extended from the LVM GUI (System - Admin - LVM). However, when I download anything, the system says I am still at 99% capacity.
Code:
[root@localhost /]# fdisk -l
Disk /dev/sda: 1000.2 GB, 1000203804160 bytes
255 heads, 63 sectors/track, 121601 cylinders
[code]....
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Oct 15, 2010
i have created two physical volumes, later added volume group to it and then created logical volume and formated the logical volume n mounted it on directory now now i wanted to split the volume group but am unable to do it.If i tries it error msg displayed as existing volume group is active and i have to inactive that volume group
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Jul 17, 2010
this is what i did i downloaded the latest stable kernel archive from kernel.org and extracted the archive into the download directory (i don't think that matters though) then i downloaded and installed the ncurses archive (needed for menuconfig) then i opened a terminal and navigated to the directory that was extracted from the archive and issues the floowing commands
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Jul 10, 2010
After months of using Lenny & Lucid Lynx without issues, I come back to the good existential questions.
I'd like a completely encrypted disk (/ and swap) in addition to the Xp partitions (not that safe but I'll switch completely to Linux once I have solved everything.
1. I create an ext4 partition for /boot
2. One other (/dev/sda7) that I set for encryption,
3. On top of that, I create a PV for lvm2,
4. I add to a VG,
5. I create / & swap in the VG.
However, if I add a hard drive, I will have to encrypt the main partition, add it to the VG & then expand /. So I'll need 2 passwords at boot time to decrypt.
So I'd like to:
-Encrypt the VG directly, it would solve everything but no device file appears for the VG, only the PV and th LV.
-After hours of search, I couldn't find a solution for a single password...
Maybe a hope with a filesystem like btrfs in the future providing encryption, but I'll still have to create a swap partition out of it (or create a file for swap but no hibernation possible).
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Apr 18, 2011
I am not familiar with LVM at all, although I have successfully got it up and running in Slackware. What I would like to know is, could I create one Volume Group in a Physical Volume consisting at the moment of just one disk, and install separate Linux releases into Logical Volumes in this solitary VG? So, for example:
/dev/sda1 = Physical Volume
volgroup = Volume Group
lv01-root = Slackware root
[code]....
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Feb 28, 2011
I have RHEL3 on of my old system.the OS is not start because the Volume group is not exist.
The single mode is not work either.the onlly shell i have is by rescue mode.and either the sysimage is not exist!should i use vgimport command?how ?I never use this command before?!?!
Part of the error that i received during start the OS is :
vgscan --ERROR "vg_read_with_pv_and_lv():current PV cant get data of volume group "vg00" from physical volume(s)
vgchange -- no volume groups found
[code]...
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May 16, 2010
I'm running debian and used mdadm to setup up a raid 6 array with 4x1TB drives with roughly 1.86TB's available with lvm. Then I added 4x1TB drives to the array. So now I have an 8 drive raid 6 array with 5.+TB's available, the array sees all available space. The question is how do I extend the volume group so that it uses the whole raid and not just half of it. As of right now the volume group is only 1.86TB's.
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Jan 18, 2010
I have run into some serious problems trying to start up RHEL AS4. I am trying to install Oracle on this box which by the way is running as a guest OS through VirtualBox. I was running with it fine yesterday. I was doing the prerequisites of updating the /etc/sysctl.conf file with additional kernel parameters. Prior to that I added another scsi virtual disk and extended a PV and left it at that for the night. I am since come back today and trying booting and am getting the following errors:
Volume group "VolGroup00" not found;
Couldn't find all physical volumes for volume group VolGroup00;
Couldn't find device with UUID "Some UUID of the device";
ERROR: /bin/lvm exited abnormally! (pid 318);
mount: error 6 mounting ext3;
mount: error 2 mounting none;
switchroot: mount failed: 22
umount /initrd/dev failed: Z
kernel panic - not syncing: Attempted to kill init!
I have tried running in rescue mode and it can find volume group VolGroup00. I also have installed Storage Foundation which includes veritas volume manager and other various veritas components. Does anyone have a clue what I am supposed to do here to get RHEL up and running again? I am running kernel version 2.6.9-42.EL if that helps as well.
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Oct 5, 2010
Before creating this topic I googled a lot and found lots of forum topics and blog posts with similar problem. But that did not help me to fix it. So, I decided to describe it here. I have a virtual machine with CentOS 5.5 and it was working like a charm. But then I turned it off to make a backup copy of this virtual machine and after that it has a boot problem. If I just turn it on, it shows the following error message:
Activating logical volumes Volume group "VolGroup00" not found Trying to resume from /dev/VolGroup00/LogVol01 Unable to access resume device (/dev/VolGroup00/LogVol01) ... Kernel panic ...! During the reboot I can see 3 kernels and if I select the 2nd one the virtual machine starts fine, it founds the volume group etc. (But there is also a problem - it can not connect the network adapters.) So, it is not possible to boot it with the newest kernel (2.6.18-194.17.1.el5), but it is possible with an older one (2.6.18-194.11...)
I looked into GRUB's menu.lst and it seems to be fine. I also tried #mkinitrd /boot/initrd-2.6.18-92.el5.img 2.6.18-92.el5 no luck! Yes, I can insert DVD .iso and boot from it in "linux rescue" mode.
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Nov 16, 2010
I'm trying to do a disk upgrade on some servers. They are using LVM with DRBD on top and each LVM volume contains a Xen image. I have already created identical volumes on another volume group, copied the data and pointed DRBD to the new source (Which seems to have worked).
What I am unsure of is how to safely remove the disks. The disks are an Areca Raid 1 array and support hotswap. Can I just pull them out of the machine or is some sort of command needed to tell LVM or the kernel to disconnect from the physical array device? Is removing the raid array from the Areca management GUI first a good idea?
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Oct 16, 2009
This concerns the Logical Volume Manager (LVM).
1) Why would I create a new volume group to add a new hard drive to a system, rather than add the drive to an existing volume group?
2) If I created a new volume group and added a new hard drive to it, would I see the total free space (I see 30 GB now via the file browser)? For example, if I have 30 GB free on the main drive (with the OS), and I add a new drive of say 40 GB in a new volume group (using LVM) would I see 70 GB of free space? That doesn't seem to happen.
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Mar 6, 2010
Prior to upgrading some of my hardware I had 4 drives used just as storage. Now I'm trying to mount the drives as an LVM but I don't have enough slots to connect all the drives at once now b/c they use an outdated type of cable. I can connect three of the four. So, can I somehow move these to a new group, or remove the missing drive from the existing group?The error is:Couldn't read all logical volumes for volume group VolGroup.Couldn't find device with uuid 'yQtrVB-5jCk-vF10-05c2-AcDL-GNn1-ivdxxh'.
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Nov 9, 2010
Maybe I'm missing something obvious but I do not see it listed in vgdisplay.
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