I have an internal valusmart tape drive. It came with the machine I bought.At first I checked with `less /proc/scsi/scsi` to make sure that Linux recognized the tape drive. It showed the tape drive.I then was able to enter simple `mt -f /dev/st0 rewind`
commands. Then I started to tar the /tmp directory to the tape. In the middle (after 5 seconds), it bombed out. I tried to rewind the tape and when I entered `mt -f /dev/st0 rewind` I got an error '/dev/st0: No such device' . I also got an error message in var/log/messages `Jul 23 13:07:40 $machine kernel: scsi: device set offline - not ready or command retry failed after bus reset: host 0 channel 0 id 1 lun 0`!. After that I could not do anything with the tape drive. I rebooted to see if it would reset the tape drive, but upon reboot , the machine no longer recognizes the tape drive at all. (It is not in `dmesg` and does not show up in proc/scsi/scsi.) Any suggestions?