How to use e2fsck to repair my disk?
e2fsck -a /dev/sda2
/dev/sda2 is mounted.
e2fsck: Cannot continue, aborting.
umount /dev/sda2
umount: /home: target 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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