On Sat, 30 Oct 2004 01:27:53 -0400, Gene Heskett <[EMAIL PROTECTED]> wrote: > To defeat that, and make an uncompressed tape out of a tape that has > been written with the compression on, will require that the correct > software command be issued (in my case it wasn't a 0, but an 'off' > command issued by mt), and then sufficient data written to force the > drive to flush its buffers, at which point the compression flag on > the tape will be reset. This is commonly 4 to 10 megs of garbage to > force this. I had written a script that would rewind the tape, read > out the tape label to a scratch file with dd, rewind it again, issue > those compression off commands, then rewrite the label block just > read with dd, followed by another 5 megs worth of "dd if=/dev/zero > bs=32768 count=160 of=/dev/nst0", and then rewind the tape again.
Thanks for the tips, Gene. Between this information, and the info Paul pointed me to, I should be all set. Thanks- Erik
