vxvm root disk booting problem - solved with boot -a. How?
Hi All,
We had a Sun Netra T1 go down the other day, the root disk was mirrored using vxvm. Upon boot from either disk, we had the following error appear:
Code:
WARNING: Error writing ufs log state
WARNING: ufs log for / changed state to Error
WARNING: Please umount(1M) / and run fsck(1M)
WARNING: Error writing master during ufs log roll
WARNING: ufs log for / changed state to Error
WARNING: Please umount(1M) / and run fsck(1M)
Cannot mount root on /pseudo/vxio@0:0 fstype ufs
panic[cpu0]/thread=140a000: vfs_mountroot: cannot mount root
no problems i thought. I'm well aware of this issue with VX. However I discovered I couldn't boot from vx root or mirror (same errors), we tried the cd, and the that failed too (suspected broken cdrom).
having given up all hope, I randomly tried a 'boot -a' (accepting all defaults) which somehow got me into multiuser, but with no vxvm partitions installed, or vx processes running. From there we were able to recover the system.
Can anyone shed any light as to how or why 'boot -a' worked? Not being a VX guy, I'm really scratching my head, and can't recreate this problem.
We had a Sun Netra T1 go down the other day, the root disk was mirrored using vxvm. Upon boot from either disk, we had the following error appear:
Code:
WARNING: Error writing ufs log state
WARNING: ufs log for / changed state to Error
WARNING: Please umount(1M) / and run fsck(1M)
WARNING: Error writing master during ufs log roll
WARNING: ufs log for / changed state to Error
WARNING: Please umount(1M) / and run fsck(1M)
Cannot mount root on /pseudo/vxio@0:0 fstype ufs
panic[cpu0]/thread=140a000: vfs_mountroot: cannot mount root
no problems i thought. I'm well aware of this issue with VX. However I discovered I couldn't boot from vx root or mirror (same errors), we tried the cd, and the that failed too (suspected broken cdrom).
having given up all hope, I randomly tried a 'boot -a' (accepting all defaults) which somehow got me into multiuser, but with no vxvm partitions installed, or vx processes running. From there we were able to recover the system.
Can anyone shed any light as to how or why 'boot -a' worked? Not being a VX guy, I'm really scratching my head, and can't recreate this problem.
TIA.
are you sure it wasnt boot -as? as in single user... that would allow you to fsck the root disk...
What is your Veritas Foundation version? Your Solaris OS version?
What caused the system to go down? What were you doing on the system? Any activities during the time? System running any HA?
system went down due to possible cpu/memory error (AFAR/AFSR). As autoboot had been set to true, we found it contsnantly trying to boot from rootdisk (and failing).
i'm 100% positive that boot into single user didnt succeed. I do know that I accepted all defaults when doing the 'boot -a' so maybe it wa something there that allowed me to boot without VX control.
We have a number of machines that are mirrored using vxvm (inherited systems - not my choice!) so it would be good to get to the bottom of this if anyone can shed some light.
Hello all,
So I made a rookie mistake today. I forgot to remove my disk from my disk group, before running the following command:for i in `ioscan -fnN | awk /NO/'{print $3}'`
do
rmsf -H $i
done
I am trying to run the following command, but not having any luck obviously:vxdg -g dgvol1 rmdisk... (0 Replies)
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Login would appear but when i attempted I would get the following
Set default permissions and reading disk and pool parameter, please wait..
in case of problems, try a reboot after Power-Off or check disk and pool status at CLI.... (1 Reply)
Hi guys,
thanks for helping out.
If you have two boot disk mirrored and your primary boot disk fails, how will you boot the system from the second disk?
Thank you very much for your assistance on this matter.
Arrey (5 Replies)
Update:
The / file system (/dev/rdsk/c1t0d0s0) is being checked
fsck unable to stat
WARNING - unable to repair the / filesystem. Run fsck manually (fsck -F ufs /dev/rdsk/c1t0d0s0).
Root password for system maintenance (control-d to bypass):
I am unable to hit control-d to by pass.
I... (50 Replies)
Hi,
Can you help me on booting x86 server configured under VxVM. Server boots fine normally from both the disks but if I try to boot server from mirror disk without starting veritas, then it does not boot.
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Hi All
Hope it's okay to post on this sub-forum, couldn't find a better place
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