Fixed...Re: can't umount /usr(/dev/hdb3)
Hi all,
On 30-Mar-97 Dale Scheetz wrote:
>> If you are in any of the mounted directories (including the top, e.g.
>> /mnt), then umount would give this message and refues to unmount the
>> device.
>>
>I don't know that this is strictly true. For instance, my fstab mounts
>/usr from a seperate device, and, I assume, unmounts it during shutdown.
>At the time of shutdown, all my users are logged in and sitting in their
>user accounts. Now, I know that shutdown kills all the users off before it
>does the unmounts, so by then they are not an issue. I assume all root
>processes are killed off by then as well.
>I had a problem recently of this type. I tried to unmount /cdrom and was
>told that /dev/scd0 was busy. After going to each account logged in and
>checking for processes using /cdrom, and finding none, I eventually logged
>out all users but root at VC1 and was still unable to unmount. Since I
>REALLY wanted the cd that was in the drive, I shut the drive off and then
>back on. This let the drive open it's door so I could retrieve the cd, but
>created problems for the system (i/o errors from df) until I rebooted.
>I have learned since that I could probably have 'rmmod'ed the driver and
>re-'insmod'ed it, but still have no idea why the system thought that the
>device was busy.
>
>Waiting is,
The cause of my umount problem was bash-2.0-3_i386.deb. This problem was fixed
when I downgraded it.
Thanks everyone for your help,
David
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