Recovering 4mm tar tapes
cruff at ruffspot.net
Mon Sep 12 13:16:10 CDT 2016
> On Sep 12, 2016, at 11:00 AM, cctech-request at classiccmp.org wrote:
> Is the 2nd tape just bad and can't be read? Or do I need a
> slightly different tape drive?
It may be bad or perhaps it was written with a larger block size? I don’t recall what tar does if the tape was written with a record size larger than the default. You might try using
dd if=/dev/st0 bs=65532 of=...
on the tape to see if you can read it at all. I don’t recall what the maximum record size on these tapes are, but it seems like it isn’t a full 65KiB. Also, make sure the drive is not configured for fixed block mode.
More information about the cctech