On 05/03/2013 10:17 PM, Valerio Pachera wrote: > root at test004:~# lsof /mnt/sdb1/ > COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME > sheep 3056 root 17u REG 8,17 4198968 173 > /mnt/sdb1/80a34c6700000000 I can't reproduce the problem. When I unplug the disk, I can umount it cleanly. From the output of your lsof, it says sheep was operating on this object, it is weird but might happen unplug it during recovery. So maybe you wait for some time and try umount again? Thanks, Yuan |