2.6.0: Unmounting unreachable file systems: ?

[Matthias Urlichs]

I would very much like to be able to unmount NFS file systems whose server
is unreachable. Apparently this doesn't work when files are open on that
file system, which is a problem because lsof doesn't work either and thus
I can't easily _find_ these files ...

Any good ideas where to dig further?

@linux linux-2.5 $ sudo umount -f /mnt/smurf 
Cannot MOUNTPROG RPC: RPC: Port mapper failure - RPC: Unable to receive
umount2: Device or resource busy
umount: /mnt/smurf: device is busy
Cannot MOUNTPROG RPC: RPC: Port mapper failure - RPC: Unable to receive
umount2: Device or resource busy
umount: /mnt/smurf: device is busy
@linux linux-2.5 $ sudo lsof
[ hangs until the previous command is executed a few times on another
  console, but then doesn't report anything ]
@linux linux-2.5 $ mount
[...]
play.smurf.noris.de:/smurf on /mnt/smurf type nfs (rw,addr=192.109.102.42)
@linux linux-2.5 $

-- 
Matthias Urlichs   |   {M:U} IT Design @ m-u-it.de   |  smurf@xxxxxxxxxxxxxx
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
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