Re: Deletion of files from usb-key
Raj Kiran Grandhi <grajkiran@gmail.com> writes:
> Haines Brown wrote:
> > Kiran,
> > Thanks for the help. I should emphazie that my promblem is not
> > mounting the usb-key drive, but only deleting the files on it. I can
> > copy those files, but not delete or modify them. However, if I add a
> > test file, I can readily delete it.
> > I suspect I damanged the file system by removing the usb-key from a
> > laptop running Windows without first "stopping" it (I know nothing of
> > Windows). You suggested first:
> > # dd if=/dev/zero of=/sdd bs=512 count=1
> > 1+0 records in
> > 1+0 records out
> > 512 bytes (512 B) copied, 0.00394563 seconds, 130 kB/s
> > This didn't get rid of the files.
>
> 1. Did you unmount the flash drive before you did dd?
> 2. Verify that your flash drive is indeed /dev/sdd.
Yes, did the command again escept for the typo above. Definitely was
unmounted.
>
> > You suggested second:
> > # mkdosfs -I -v /dev/sdd
> > mkdosfs 2.11 (12 Mar 2005)
> > /dev/sdd has 16 heads and 62 sectors per track,
> > logical sector size is 512,
> > using 0xf8 media descriptor, with 1000944 sectors;
> > file system has 2 16-bit FATs and 16 sectors per cluster.
> > FAT size is 245 sectors, and provides 62526 clusters.
> > Root directory contains 512 slots.
> > Volume ID is 47326c96, no volume label.
> > Files still there.
>
> As I said, the drive was probably still mounted when you ran the
> commands. Unmount the flash drive, run dd, unplug it from the system,
> plug it back in, run mkdosfs, unplug, plug and then mount.
Again, the drive not mounted. I did the two commands again, and
followed your suggestion to unplug the device after each
command. Still have the pesky files.
--
Haines Brown, KB1GRM
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