mint[member=37]mint[/member] ~ $ sudo umount /dev/sda1
umount: /media/mint/12e4c2f0-65f8-47ba-afa0-d2bc498872fa: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
mint[member=37]mint[/member] ~ $ sudo fsck /dev/sda1
fsck from util-linux 2.20.1
e2fsck 1.42.9 (4-Feb-2014)
/dev/sda1 is mounted.
e2fsck: Cannot continue, aborting.