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umount /mnt: デバイスがビジーです。

Last updated at Posted at 2013-08-06
$ sudo umount /mnt
umount /mnt: デバイスがビジーです。
       (このデバイスがプロセスによって使われているのであれば、lsof(8)やfuser(1)>
を使って調査するのが有益かもしれません)
$ lsof /mnt
COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF  NODE NAME
bash    13410 user  cwd    DIR   8,33     8192 63803 /mnt/work
$ sudo kill -9 13410
$ lsof /mnt
$ sudo umount /mnt
umount -f /mnt

それでもダメな場合は

umount -l /mnt
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