Sorry - I missed the initial post, but one idea:
	What blocksize are you using on the sparc?
	I think you should be using 512 byte blocks for the boot block &
	miniroot...

                   David/abs             (david@mono.org)

.---- I've been too drunk to love ----.--- I've been too drunk to remember -.
|          Too drunk to care          |     The hell of the night before    |
|  Looked like death, felt like Hell  |    I've been drinking myself blind  |
`------ Been the worse for wear ------'--- And still I'll drink some more --'

On Thu, 20 Jun 1996, Anders Magnusson wrote:

> > 
> > >>>>b/3 mua0
> > 2....
> > ? 4B CTRLERR, MUA0
> > ? 06 HLT INST
> >      PC=00000E0A
> > Error.
> > >>>>
> > 
> > What does CTRLERR mean? A bad tk50 controller? VMS seems to see the
> > tk50, it works as intended. Is anything wrong with copying
> > on solaris? Byteorder?
> > Any suggestions?
> > 
> This means that the tape doesn't look bootable to the built-in
> VMB in your Microvax. Probably the sparc system couldn't do a write
> to the tape that looked as your Microvax wanted. I have no idea 
> about what to do about it.
> 
> -- Ragge
>