Package: psmisc
Version: 21.5-1
When I'm trying to umount a particular partition and it doesn't work,
I use fuser to find out why. This works great -- unless the reason is
that the partition is being exported to NFS via /etc/exports and
/usr/sbin/exportfs.
When the partition has been exported, fuser doesn't show anything.
Fuser -v just shows the kernel mount.
I consider this a bug: fuser -v should also show the NFS export.
Here's a simple scenario where it fails. At first, there's a process
(my shell) using the directory. But even when I move away, the partition
won't umount -- until I unexport it. Fuser is oblivious to this.
radio:/i# umount /i
umount: /i: device is busy
umount: /i: device is busy
radio:/i# fuser /i
/i: 23605c
radio:/i# fuser -v /i
USER PID ACCESS COMMAND
/i root 23605 ..c.. bash
root kernel mount /i
radio:/i# cd /
radio:/# fuser /i
/i:
radio:/# fuser -v /i
USER PID ACCESS COMMAND
/i root kernel mount /i
radio:/# umount /i
umount: /i: device is busy
umount: /i: device is busy
radio:/# showmount -e
Export list for radio:
/i new.toad.com
radio:/# exportfs -u -av
unexporting new.toad.com:/i from kernel
radio:/# fuser -v /i
USER PID ACCESS COMMAND
/i root kernel mount /i
radio:/# umount /i
radio:/#
John Gilmore
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