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From: krowitz@mit-kermit.UUCP (David Krowitz)
Newsgroups: comp.sys.apollo
Subject: Re:  TAR
Message-ID: <8706101902.AA05155@EDDIE.MIT.EDU>
Date: Wed, 10-Jun-87 14:10:42 EDT
Article-I.D.: EDDIE.8706101902.AA05155
Posted: Wed Jun 10 14:10:42 1987
Date-Received: Sat, 20-Jun-87 05:55:29 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The ARPA Internet
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Hmmm ... let's see ... first of all, you need to rewind and retension the
cartridge tape on the Apollo before writing on it. You can do this with
'/com/wbak -dev ct -reten'. Then use the command 'tar cvbf 1 /dev/rct8' to
write the tape. /dev/rct8 is the correct device to use on the Apollos, the
'b 1' is required on the Apollos when writing to a cartridge tape in order
to get the blocksize correct. The cartridge tape has a fixed blocksize (or
so I am told) and the default blocksize of 20 will cause your data to be
lost. This is required even if you are reading the tape back onto another
Apollo. Once the tape is written, you should be able to read it back on
a Sun or an Apollo (or any other machine which uses the QUIC-24 format) with
the command 'tar xvf /dev/whatever_your_machine_refers_to_the_drive_as'


                                   -- David Krowitz

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