| booting kernel with raid and lvm [message #32413] |
Wed, 06 August 2008 11:45  |
snozzled
Messages: 2
Registered: August 2008
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Junior Member |
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Hello all
I'm trying to boot the kernel from ovzkernel-2.6.18-92.1.1.el5.028stab057.2.x86_64.rpm on a Fedora9 system that is configured with lvm layered on software raid1. The kernel panics because it can't find the root partition:
Scanning logical volumes... No volume groups found
I've pulled down the config file for the binary kernel and as far as I can tell it has been compiled with lvm and RAID support, the absence of which is the usual culprit in this type of problem.
Any other suggestions? I've found some older documents that suggest it can be sensitive to the format used for identifying specific partitions i.e. UUID vs. /dev/mapper vs. /dev/VolGroup... paths in /etc/fstab and grub.conf, but it does not even seem to be getting far enough though the process for that to matter.
Thanks
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| Re: booting kernel with raid and lvm [message #32419 is a reply to message #32413] |
Wed, 06 August 2008 22:19  |
khorenko
Messages: 533
Registered: January 2006
Location: Moscow, Russia
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Senior Member |
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Hello,
can you please post here:
0) kernel version which work fine on your node
1) /etc/grub.conf (or some other if you use other bootloader)
2) `lspci`, `lspci -n`
3) complete bootlog messages from kernel in 0) (from /var/log/messages)
4) with 99% probability we'll need complete bootlog messages for OpenVZ kernel. You can collect them with help of serial console.
http://wiki.openvz.org/Remote_console_setup#Serial_console
Thank you.
--
Konstantin
If your problem is solved - please, report it!
It's even more important than reporting the problem itself...
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| Re: booting kernel with raid and lvm [message #32434 is a reply to message #32422] |
Thu, 07 August 2008 16:05 |
khorenko
Messages: 533
Registered: January 2006
Location: Moscow, Russia
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Senior Member |
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Hi again,
congratulation with the victory!
Can you please share your experience? This might help others if they faced a similar issue.
What was the native kernel that works fine?
What was the exact difference between initrd for that kernel and OpenVZ one?
What what did you explicitly do to get working initrd? (i think "init" scripts from initrd for FC9 kernel, unmodified for OpenVZ kernel and with your modifications - would be brilliant!)
Thank you!
--
Konstantin
If your problem is solved - please, report it!
It's even more important than reporting the problem itself...
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| Re: booting kernel with raid and lvm [message #32723 is a reply to message #32413] |
Mon, 25 August 2008 21:20 |
rcdes
Messages: 1
Registered: August 2008
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Junior Member |
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I've got the same problem. Tested with virtualbox, 32 bit mode. Used latest available iso images.
Here is disk configuration, defined during install:
1. sda1, sdb1 -> md0, 500mb (RAID1) -> /boot
2. sda2, sdb2 -> md1, 500mb (RAID1) -> LVM -> vg
3. sda3, sdb3 (all free space) -> LVM -> vg
4. vg -> lvswap 1GB
5. vg -> lvroot 4GB -> /
Then install Fedora 9 with defaults, run update & reboot. Then convert lvswap & lvroot to mirror mode:
lvconvert -m 1 /dev/vg/lvroot /dev/sda3 /dev/sdb3 /dev/md1
lvconvert -m 1 /dev/vg/lvswap /dev/sda3 /dev/sdb3 /dev/md1
Seems to work. Then install OVZ from repo with yum. After reboot - problem with md.
---
Checking filesystems
fsck.ext3: Invalid argument when trying to open /dev/md0
---
Native fedora kernels (2.6.25) works fine.
(*) The same sequence for Centos 5.2 works with no problem.
Can anyone fix that problem?
PS. Seems, openvz.repo should be updated. There no info for 2.6.24 kernel. Tryed to add manually, but failed - yum shows only PAE-debug kernel.
[Updated on: Mon, 25 August 2008 21:31] Report message to a moderator |
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