Subject: Re: disklabel not updating?
To: Johnny C Lam <jlbg+@andrew.cmu.edu>
From: Ken Nakata <kenn@er7.rutgers.edu>
List: port-mac68k
Date: 03/10/1996 11:22:14
> 'disklabel' always causes a bunch of error messages to occur when run
> for the first time. It will say that it cannot modesense from sd1, and
> so it will use a fictitious geometry for the drive.
That's a problem with the Zip drive itself.
> Now, when I run
>
> disklabel -r /dev/sd1c
>
> the output tells me the correct disk type: 'zip100' and the info I wrote
> to the Zip disk. However,
>
> disklabel /dev/sd1c
>
> tells me that the in-core kernel copy of the disklabel is still set to
> using the fictitious geometry.
Writing native disklabel on mac68k doesn't work, yet. You should use a
partitioning tool on MacOS and make a partition that's marked as A/UX
something (usually Root, Root&Usr or Usr), so the kernel can build its
in-core disklabel from the partition table.
As for geometry, I understand that, if Zip doesn't support mode sense
command, there's no way for the kernel to tell Zip's real geometry, so
you are stuck with fictitious geometries.
ken