On Sat, Jul 01, 2000 at 10:26:57AM -0700, Dave Olson wrote:
> Soren S. Jorvang wrote: 
> |  SGI's have a 16-partition disklabel rather similar to the BSD one.
> |  Since it is necessary to use that rather than a native BSD disklabel
> |  if you want to boot from the disk, we can't just ignore it.
> 
> If you want to move disks back and forth to irix, you can't swap part 10; the
> knowledge is hardwired in too many places in irix.  If you don't care about
> that, then you can do it with no issues.

I am not planning on changing the on-disk convention, just the
userland representation.

> convention.  If you don't use the SGI sash as the loader, you don't
> need anything at all, other than to leave block 0 alone with the
> minimal data structure at the start of the block, and a "bogus" size
> that is at least the start address of the secondary loader plus it's size
> to pass the validity check.

Are you saying that it is possible to boot from a disk without
having the volume header "filesystem"?


-- 
Soren