Ubuntu
gnome-disk-utility package

repair mounted drive

Asked by russell

i want to check a mounted drive for errors,how do i unmount & check ubuntu 11.10

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mycae (mycae) said : 		#1

sudo umount /path/to/mountpoint/or/device
sudo fsck /dev/PARTITION

your partition listing can be obtained either using gparted, or by the command line with
sudo fdisk -l

(thats a dash-lowercase-ell).

your mount locations can be seen with

mount

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mycae (mycae) said : 		#2

note that you can't unmount an in-use fileystem, such as the root filesystem, or your home dir if you are logged in.

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delance (olivier-delance) said : 		#3

If you want to check a system partition (which is the most probable case), boot on Ubuntu CD and choose "Try" instead of "Install". Then open a terminal and run fsck /dev/sda1 . You could also use Disk Utilities or Gparted in System->Administration menu.

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