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.
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.