Subject: Re: ustarfs boot floppies
To: None <drochner@zel459.zel.kfa-juelich.de, port-alpha@netbsd.org>
From: Ross Harvey <ross@teraflop.com>
List: port-alpha
Date: 11/20/1998 15:24:49
> From: drochner@zel459.zel.kfa-juelich.de
>
> Just a dumb question: How are these created?
>
> I tried to get this working on the i386, and
> while it seems to work with a simple tar file
> on a single floppy, I couldn't create a multi-
> volume archive.
> If I understand it correctly, the volume size
> must be 1432k -- 8k left for bootstrap.
> So I tried
> tar -c -f <tarfile> -M -l 1432 -V USTARFS <files>
> But this created output files of length 1440k,
> probably tar's 10k default blocksize caused this.
> But if I specify a smaller blocksize, eg
> -b 1
> tar coredumps at the beginning of the second volume.
>
> This is probably a tar bug, but it must have
> worked for other people...

I can elaborate on this and was going to bring it up with the i386 portmaster
and release engineers anyway, so I will follow up with this off the list
and copy you. (I doubt if our list subscribers will find the internal
mechanism of the installer an exactly fascinating topic. :-)

  --Ross Harvey