> Why,  using anything that can write raw disk blocks to the target disk:
>
>  * rawrite on a DOS box.     
>  * dd on a big-endian Unix box (SunOS, NetBSD, IRIX, ...)
>  * dd on a little-endian Unix box -- including Ultrix.
>
> You'll still have to move the disk for all except Ultrix, of course.
> But this will works with just about anything.

Some OSes protect boot blocks from raw writing.  With Digital UNIX
(which happens to tahoe disklabel), you have to clean disklabel area
before 'dd'ing raw image.  With some NetBSD implementations, writing
raw image requires similar preparation.  Others don't care to where
image will be written.  In that cases, raw image write just works.
That's why I wrote lengthy comment.

Tohru Nishimura
Nara Institute of Science and Technology