How to add a tape to the database
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The old way:
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For some reason, the OSU add-tape program seems to want to have
some data on the tape before it writes its header, so we'll give
it some.

1. insert fresh tape
2. login to bill
3. tar -cf /dev/rmt/1hn (some random useless file)
   (or, perhaps, dd if=/etc/services of=/dev/rmt/1hn)
4. mt -f /dev/rmt/1hn rewind

Now that that's done, add the tape to the actual tape database.

5. Login to wherever the backup is to take place.
6. cd /usr/local/backup/bin/
   ./add-tape -t <ID> [-e]  (-e is don't eject afterwards)

   <ID> is some number, for example "24" to make exb-24.

Finally, you can do a backup.

7. ./all-backups