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can not fsck /opt (encapsulated into VM)

I have lost my /opt (ie I can not fsck it) because it is encapsulated into volume manager. And volume manager is sitting in the /opt, which means that volume manager is unavailable because, it's sitting in a filesystem which needs, to be fixed... And it can not be fixed becuase  VM is not running... It's a vicious circle. Please help, I have a full day downtime!! I tried logging in in single user mode (using cdrom), but still I can't get through!!
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biki
Asked:
biki
1 Solution
 
OtetelisanuCommented:
You can boot from cdrom (eprom modus and
boot cdrom)
After boot you can mount /yourdisc /a
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dforsterCommented:
Have you tried to unencapsulate the disk ?

Mount the disk from a cdrom kernel

ie boot 1a / stop a

boot cdrom

mount /dev/dsk/cxtxdxs0 /mnt

cd /mnt/etc

vi /etc/vfstab

edit the entries / /opt /var to cxtxdxsx and comment out the /dev/vx/ entries

cd /mnt/etc/vx/reconfig.d/state.d

rm root-done

touch install-db

cd /mnt/etc/init.d

mv the volume manager start scripts

reboot on the disk

then fsck /opt

If you require further instructions one will send them.

Then once rebooted fix the re - encapsulate

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k.kidambiCommented:
hi, Biki

Following may help you in fixing your problem.

boot cdrom in single user mode.

boot cdrom -s

mount your old root device.

mount /dev/dsk/c0t0d0s0 /mnt

cat /mnt/etc/vfstab.prevm

This will have your original entry of your /opt

do an fsck on that /dev/rdsk/c0t0d0s? (on the /opt) device.

This should probably fix your problem.

Try your luck
Kidambi
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tfewsterCommented:
No comment has been added lately, so it's time to clean up this Topic Area.
I will leave a recommendation for this question in the Cleanup topic area as follows:

- PAQ, no points refunded

Please leave any comments here within the next 7 days

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

tfewster
Cleanup Volunteer
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NetminderCommented:
Per recommendation, points NOT refunded and question closed.

Netminder
EE Admin
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