>> What would the correct syntax be for that - I can't figure out how to
>> make tar accept stdin:
> I don't think it can. Instead, maybe dd with blocksize set equal to the
tape drive's required blocksize would do? You'd have to check what options
your
> dd version has for padding out the last partial block. Padding with spaces
should work fine, not totally sure if nulls would be OK.
I don't think it can either, which kind of makes sense. Tar is an archiving
utility to create an archive of files; not to create an archive of the
contents of files. Subtle difference, but makes sense. If I created a tar
archive from the stream coming out of tar, what would be listed when I did
'tar tvf /dev/st0'?
I think I'll hack the backup to output it to a temp file, then tar that file
to tape.
At the very least:
#!/bin/bash
$DBNAME='dbname'
$TMPFILE="/tmp/$DBNAME.date.sql"
$TAPE_DRIVE='/dev/st0'
/usr/local/bin/pg_dump $DBNAME > $TMPFILE
/bin/tar cvf $TAPE_DRIVE --label="$TMPFILE" $TMPFILE
/bin/rm -f $TMPFILE
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