Re: Q: double Boot for SMP 7300
I think that the answer to the original question is that when
booting from BootX, you have to have a kernel that supports SMP, but
the stock kernel does not, so you have to build your own, and put it
where BootX can find it.
I don't think there is anything that you need to do to your PRAM,
whatever that is, or your nvram, if you are using BootX. I use
BootX on my dual processor machine, it works fine, and I have never
done anything to the nvram on that machine.
There are problems with the MP code for ppc if you want to build a
kernel with a lot of things set up as modules. Many of these things
work fine as modules in UP mode, but have symbol problems in MP
mode. I actually fixed the problems and made a patch, but decided
that there were so few powerpc MP users that no one would care. But
after seeing all these messages, I can make the patch available if
people want it. It goes against debian kernel source package for
2.2.18pre21 with the powerpc patch applied, but I'm guessing it will
go fine against 2.2.18 or 2.2.19 just fine. YMMV. Let me know if
people want it. Without it, I couldn't run nfs, nfsd or nvram as
modules. With this patch, I can.
a
Peter Cordes wrote:
>
> On Thu, Mar 01, 2001 at 09:35:10PM +0100, Michel Lanners wrote:
> > > I have a 7300 that I have upgraded to a 2x604/200MHz SMP computer.
> > >
> > > Now I´m looking for a solution to my boot-problems.
> > >
> > > I have a little partition with this faked system-folder and I have BootX.
> > > If I boot into MacOS and then start BootX to run linux, the second cpu
> > > won´t run and I run a single cpu computer :-(
>
> With kernel 2.4.2, I can boot my quad CPU Daystar Mac clone from BootX and
> run all four CPUs. (I'm going to have to do something about that kernel,
> since I've already had it lock up once. I'm trying to get the machine set
> up well enough to use it for my primary workstation, but I don't have enough
> time to mess with it. I'm glad it's not my hardware that caused the lockup,
> but finding out that the PPC parts of Linus's tree are screwed is pretty bad
> news in itself. :(
>
> --
> #define X(x,y) x##y
> Peter Cordes ; e-mail: X(peter@llama.nslug. , ns.ca)
>
> "The gods confound the man who first found out how to distinguish the hours!
> Confound him, too, who in this place set up a sundial, to cut and hack
> my day so wretchedly into small pieces!" -- Plautus, 200 BCE
>
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