Kalau matikan proses agar tidak busy gmn?
umount /dev/sda7
umount: /usr: device is busy.
(In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))
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fsck -y /dev/sda7
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
/dev/sda7 is in use.
e2fsck: Cannot continue, aborting.