[TUHS] Re: Making boot disks

Pete Turnbull pete at dunnington.u-net.com
Tue Oct 1 16:29:56 AEST 2002

On Oct 1,  1:37, Ian Molton wrote:
> On Tue, 1 Oct 2002 09:29:02 +0930
> "Greg 'groggy' Lehey" <grog at lemis.com> wrote:
> > Well, it would be nice to know what you're really trying to do.
> > What's the hardware?  If the file system is UFS, it's unlikely to be a
> > good fit for Linux.  I'd say "try FreeBSD", but without knowing more
> > about your software and hardware, it's not clear if that would be any
> > better.  Google suggests that it runs on ARMs.  Is that correct?
> The hardware is an obscure british platform from back when the ARM was
> young. - The Archimedes.
> The CPU is the ARM2 or 3 (either work) and the systems have SCSI,
> ethernet, and (up to) 16Mb of RAM.
> I dont actually know what the filesystem is, but my guess is UFS based
> on the newfs command in the mkkernel script, and a rumour it is BSD
> derived.

It is indeed a straight port of BSD 4.x, where x depends in whether is it's
RISC iX 1 or 1.2 (R440 used 4.2, I think; R260 used 4.3).

> I have everything from a machines filesystem in a tarball.
> I simply have no bootdisk, and cant create one without a suitable newfs
> > > any advice from the list would be appreciated :)

Take a look at James Carter's page at

James and I worked this out when we rescued half-a-dozen R260's in various
states of disrepair and with various not-quite-complete copies of RISC iX.

> is it possible for someone else to make a filesystem image for me that I
> could dd onto a floppy? I suspect that this system uses an old variant
> of ufs.

It is a standard 4.3 filesystem (at least for the verison for an R260).  It
even says so when it boots:

RISC iX Release 1.2
ARM3 processor, cache enabled
Root fstype 4.3, name /dev/sd0a
Swap fstype spec, name /dev/sd0S

One of us could copy some stuff for you.  I'm not sure you'd be able to get
what you need onto a single floppy, though.  That's not how Acorn did it.

We'd certainly be willing to help, especially if you have any RISC iX stuff
we're missing.

Pete						Peter Turnbull
						Network Manager
						University of York

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