Subject: Re: disk label support?
To: Wayne Knowles <wdk@netbsd.org>
From: David Brownlee <abs@netbsd.org>
List: port-sgimips
Date: 09/25/2001 00:06:24
On Mon, 24 Sep 2001, Wayne Knowles wrote:

> On Sun, 23 Sep 2001, Hubert Feyrer wrote:
>
> > after:
> >
> > 16 partitions:
> > #        size    offset     fstype  [fsize bsize cpg/sgs]
> >  a:  17676630      3753     4.2BSD   1024  8192    16   # (Cyl.    3 - 14132)
> >  b:    261459  17680383       swap                      # (Cyl. 14133 - 14341)
> >  c:  17941842         0    unknown                      # (Cyl.    0 - 14341)
> >  d:      3753         0    unknown                      # (Cyl.    0 - 2)
> >
> >
> > What exactly is in that volume header on partition 'd'?
> > Can it be overwritten, or should that better not happen?
> > If not, maybe we should make 'd' be from sector 0 to the end,
> > and 'c' be from sector 3753 (is this a fixed number?) to then end?
> > That'd probably even more conforming with the i386 port then.
>
> The 'd' partition contains the 2nd stage bootstrap known as SASH (for
> Standalone Shell).  If you want to boot Irix on your machine you need that
> partition.
>
> Given the sgimips port has gone for 16 partitions in the disklabel, can we
> not choose to use the 1:1 mapping and leave it in slice 8??  Unfortunately
> there is no NetBSD filsystem type that accurately describes the contents,
> hence it is made Unknown.
>
	Would it make sense to add some new filesystem types to rectify
	thaat? :)

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