🚀 go-pugleaf

In <6sj6hs$nhc$1@studium.student.umu.se> Niklas Edmundsson <nikke+spam@ing.umu.se> writes:

>> >| Sparc 20s are still used by places who need SunOS or havn't updated to
>> >| Solaris yet, they are (I believe) the fastest Sun that will run SunOS.
>> >IIRC, running SunOS 4.1.[2-4] is restricted to sun4c and sun4m platforms.

>> and sun4. I forget what was the last thing to run on sun3 - 4.1.1 ?
>> Solaris pre-2.6 runs on sun4.

>The newest SunOS/Solaris that's possible to run on:

>sun3/sun3x		SunOS4.1.1_U1
>sun4			Solaris 2.4

aka SunOS 5.4

>SS 6xx (ie. 690MP)	Solaris 2.5.1	(Solaris 2.6 if you hack a bit)

aka SunOS 5.5.1

>sun4c/sun4m etc.	Solaris 2.6

aka SunOS 5.6

4/6xx boards can run SunOS 5.6 (aka Solaris 2.6) with some kernel fiddling
to remove the machine type check. There's no VME support as of 5.6, so it
makes a 4/6xx into a very capable single-board Sun-4m machine with lots of
Sbus slots. And one good thing is that 4/6xx's use standard 4 meg, 30 pin
parity SIMM's.

Another limitation, besides the lack of VME support (but who really needs
that these days anyway?), is that you can't use the older types of Mbus CPU
modules since SunOS 5.6 dropped support for them too. Things like the SM-5x
and SM-6x modules do generally work (not all variants of each though), but
not the older SM-100's.

I don't however have a record of what needs to be done with the kernel to
disable the 4/6xx system checking routine. Does anyone have a saved copy of
the news article(s) which detailed what to do to make SunOS 5.6 work on
4/6xx boards?

>Solaris 2.7 will not support some older hardware, anyone that knows more
>precise ?

I presume the Sun-4c will be dropped, since they are getting very old now
(but still extremely useful) compared to all the Ultrasparc models being
released.

Regards,

Craig.
-- 
            Craig Dewick. Send email to 'cdewick@lios.apana.org.au'
  Point a web browser at 'http://lios.apana.org.au/~cdewick/sun_shack.html' to
    access my archive of Sun information and links to other places. For info 
      about Sun Ripened Kernels, go to 'http://www.zeta.org.au/~craig/srk'