[rescue] Sparcstation 10 woes during boot

[Malte Dehling]

Hi,

On Sun, May 23, 2021 at 07:44:41PM +0200, Zoltan HERPAI wrote:
> On 05/23/2021 17:00, Malte Dehling wrote:
> > On Sun, May 23, 2021 at 10:09:14AM -0400, Mouse wrote:
> > > Also, are you familiar enough with the SS10 to recognize a cg14 if
> > > present?  That could give the machine a framebuffer without it
> > > looking like it if all you know to look at is the sbus.  (I
> > > _think_ the SS10 supported the cg14.  The 20 does, but I don't
> > > have a 10 to check closer than my off-site storage unit.  The cg14
> > > takes the form of a so-called VSIMM, something like a stick of
> > > memory (it occupies a RAM slot with an extension that connects to
> > > an additional socket in-line with the RAM socket).
> >
> > Most SS10s do not have the builtin CG14, only the (rare) SS10SX does.
>
> Thanks all for the tips, in the end it was the first slot memory
> module not behaving - although I've re-seated all memory modules
> before writing the mail, that didn't fix it. What fixed it was
> swapping the modules in slot 1 and slot 7, after it the box booted
> fine. (It's stuck at PROM password, but that'll be fixed with grabbing
> a keyboard and doing a STOP+N).
> 
> Speaking of PROM, if I want to upgrade from the current 2.14.7, it's still
> the usual process of UV-clearing the PROM chip and rewriting it with the
> latest 2.25 image, correct?

Yes.  Or you can replace the EPROM by an EEPROM.  I've used cheap
NAND-flash on some of my SPARCstations.

In case you don't have the 2.25 ROM image, it is available from the
internet archive:
https://archive.org/download/sunshack_bootroms

The collection is somewhat incomplete, but the regular 2.25 ROM (not the
ROSS 2.25R) is there.

Cheers,
Malte

-- 
Malte Dehling
<mdehling at gmail.com>