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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