Re: Deletion of files from usb-key
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
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.
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.
Important relevant information:
$ ls -la /media/usb-key
drwxr-xr-x 2 brownh brownh 20480 Dec 31 1969 .
drwxr-xr-x 8 root root 4096 Jul 17 15:16 ..
-rwxr-xr-x 1 brownh brownh 1071529 Aug 14 14:35 <.PNG filename>
$ df /media/mirror
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 964500 124352 791152 14% /
I next tried to repair the file system;
# dosfsck -av /dev/sdd
dosfsck 2.11 (12 Mar 2005)
dosfsck 2.11, 12 Mar 2005, FAT32, LFN
Logical sector size is zero.
I said that running mformat failed. What I meant is that I only get
the usage help, but nothing happens:
# mformat -v /dev/sdd
Mtools version 3.9.10, dated March 2nd, 2005
# fdisk /dev/sdd
and print partition table:
Disk /dev/sdd: 512 MB, 512483328 bytes
16 heads, 62 sectors/track, 1009 cylinders
Units = cylinders of 992 * 512 = 507904 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 1009 500433 b W95 FAT32
This looks OK.
Haines Brown, KB1GRM