Xref: utzoo comp.unix.i386:8293 comp.unix.wizards:23702
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!hacgate!janus!cws
From: cws@janus.Quotron.com (Craig W. Shaver)
Newsgroups: comp.unix.i386,comp.unix.wizards
Subject: Re: multi-volume tar
Summary: /etc/default/tar, tar [key] [ files ]
Keywords: format
Message-ID: <598@janus.Quotron.com>
Date: 29 Aug 90 17:52:53 GMT
References: <7920@lynx.UUCP> <2242@sud509.ed.ray.com>
Distribution: na
Organization: Quotron Systems Inc., Los Angeles
Lines: 26

In article <2242@sud509.ed.ray.com>, heiser@tdw201.ed.ray.com writes:
> In article <7920@lynx.UUCP> m5@lynx.uucp (Mike McNally) writes:
> >Apparently, Interactive System V (and SCO and AIX) tar on 386 PC machines
> >allows multi-diskette tar archives.  I'm looking for information on if and
> >how tar marks volumes; is there a special volume header block?
> >
> 
> The Esix manuals mentions multi-volumes (floppies) in the tar and cpio
> sections -- but I could not get either to work.  Maybe i'm not using the
> right device names or something.  I tried to both 1.2 and 1.44 meg floppies.
> Anyone know of any special tricks to do this?

Using the number in place of the 'f' key selects a line in the /etc/default/tar
file as the device and also gives the total blocks on the device.  Tar will
then stop before end of media and prompt for a new volume on creation.
You may also use the 'k' option to directly specify the total blocks on the
device.  I have used this to back up over multiple 60mb tapes.  (RTFM, ;-)

	Craig W. Shaver

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