Re: I rebooted to get a FS back. What is the proper thing to do.

From: Casper H.S. Dik (Casper.Dik_at_Sun.COM)
Date: 11/22/04 

Date: 22 Nov 2004 13:04:13 GMT

Shea Martin <smartin@arcis.com> writes:

>I unshared the fs, then unmount /export/home/myfs, then unmount
>/home/myfs. I am pretty sure that those unmounts are in the wrong
>order, and this may have been my problem. But umount never complained.

Doesn't matter; as long as the mount is gone on the client.
(umount -f?)

>Assuming everything was unmounted properly (2nd mistake), I did a fsck
>on the fs. After the fsck, I though I would mount the disks before the
>power-cycle to prove whether the power-cycle was necessary. I couldn't
>mount /export/home/myfs or /home/myfs, it said the it was already
>mounted max # of times. A 'mount' showed that /home/myfs was still
>mounted on /export/home/myfs. But umount said that the fs was not mounted.

Uhm; well, in Solaris 8 /etc/mnttab is a file and it may or may nbnot
reflect reality. In Solaris 10 it's a device and it always
reflects reality.

>I ended up scheduling a reboot, which I just finished this morning, and
>all is back to normal.

>Was there a way to recover from my error of unmounting in the wrong
>order? Are the newer releases of solaris any more robust in this
>aspect? Any other thoughts?

No, the wrong order doesn't really matter but one important problem
is that you need to unshare first and then unmount (doesn't matter
where first)

Casper 

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