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Re: Deletion of files from usb-key



Haines Brown wrote:
$ df /media/usb-key Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdd1               499440    303916    195524  61% /media/usb-key

Above you're using /dev/sdd1

# dosfsck /dev/sdd

Here you're using /dev/sdd (not the partition 1).

# mkdosfs -I /dev/sdd

Dito.

For making really sure you get to a clean state, I'd use this sequence (not tested as typed, but should work; unlike the previous suggestion of writing one sector with dd, this wipes the whole stick, so really make sure that this is ok for you and that /dev/sdd *is* your stick):

Plug stick in, but do not mount it (or umount it again if it has been automounted).

# cat /dev/zero > /dev/sdd
(it will probably print an error when it reaches the end of the device, that's ok)

# sync

unplug, plug back in.

use cfdisk (or fdisk) to create one partition as has been there before.

unplug, plug back in (at least do this if cfdisk warns you about not having been able to make kernel aware of the changed partition table).

# mkdosfs /dev/sdd1
(note the missing -I, since you're not working on a whole device anymore, but on a partition (the only one))

Then mount the stick as usual.

Christian.



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