[net.unix-wizards] tar tape incompatabilities

slesh@fth-1.arpa (01/23/86)

	Does anybody have any idea what the incompatability problem with
'tar' tapes created on a Vax for our AT&T 3B20 might be?  Somebody sug-
gested that it might have something to do with byte ordering.
	I would appreciate some suggestions as to how to get around this.
Some of our users are waiting for the documentation on the 'tar' tape.
I keep getting a 'checksum' error with an unmodified 3B20 'tar'.  When I
bypass the checksum routine, I get and u"unbalanced" nroff text marker error.

	Any help anyone can give would be greatly appreciated.  Thanks in
advance.

			Steven Lesh

bzs%bostonu.csnet@csnet-relay.arpa (01/25/86)

Ugh, this keeps coming up, the 3B cannot handle the default large
blocksize of Tar, the tape has to be written with a smaller
blocking factor (re-written) on the Vax, like:

	tar cbf 5 /dev/rmt12 .

for a blocking factor of 5 which should work fine. It's hardware
(a really dumb tape controller on the 3B) so I believe there is
no real way around it other than re-writing the tape.)

	-Barry Shein, Boston University