Not Kubuntu Specific: NachOS on Ubuntu?

Glen Barber glen.j.barber at
Fri Mar 13 22:59:22 GMT 2009

On Thu, Mar 12, 2009 at 12:48 AM, Matthew Flaschen
<matthew.flaschen at> wrote:
> Glen Barber wrote:
>>> I was able to make some progress, but I got stuck on the assembly.
>> Interesting.  Do you remember where specifically it crashed?  I don't
>> remember seeing that linux.patch (I'll check it out when I get home).
> Basically it can't find a (well, at least one) function that is supposed
> (as best as I can tell with my quite limited assembly knowledge) to be
> defined in threads/switch.s.
> Thus, you get errors like:
> nachos-3.4/code/threads/../threads/ undefined reference to
> `ThreadRoot'

Meh, the same (similar) errors I get.  Looks like a lost cause.

>> Thanks for your feedback, Matt.
> You're welcome.  It seems like a very interesting program.  Can I ask
> what made you try to run it?

I hear it is a good learning tool for OS development.  Single-stepping
through kernels at boot takes too long to be productive.  Basically,
just "something to do(tm)."


Glen Barber

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