Re: Boot netbsd 2.0 on RiscPC

Am Samstag, 26. März 2005 02:13 schrieb David Brownlee:
>   So to clarify - both the 2.0 !BtNetBSD using boot32, and
>   direct use of the 2.0 boot32 fail for you, but work with
>   an earlier BtNetBSD?

They do not work with boot32 as supplied with NetBSD 2.0 (well, they work 
sometimes, but very seldom, maybe 1 out of 30 tries), and do work with 
btnetbsd, both v1.4 2004/0/24 as supplied with 2.0, and 1.5 2002/03/24 as 
supplied with the btnetbsd-0.99a archive (both did never fail).

> > Anyway, i tried it with several combinations of the following 6 SIMMs:
> >
> > SIMM A,B: 32MB, with 2 banks 16MB each (the original ones)
> > SIMM C,D: 32MB, with 2 banks 16MB each (different type)
> > SIMM E,F: 64MB, with 1 bank of 64MB
> >
> > Needless to say, all SIMMS were stable in the machines they were in
> > originally. BtNetBSD was able to boot with any combinations of them.
> >
> > Boot32 was only able to boot with SIMM C or D in any of the slots, but
> > not with both of them. It failed with any other combinations I tried.
> >
> > How can we explain this?
>
>   That is very strange. Could you look at the messages boot32
>   gives (load an invalid kernel - README works quite well :)
>   and see if they are any different between one of C/D and
>   one of A/B?

It could be that one difference beetween the SIMMs is that one could be EDO 
and the other FPM, but I do not know which is what. The 64MB ones are quite 
sure EDO. Would that make a difference?

Could you give me a hint where I can find "load an invalid kernel - README"? I 
guess I can find there information how to preserve the boot32 messages, 
because they go away too fast if booting works.

Peter Teichmann