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Re: Instructions for running NetBSD on EC2

On 26.01.2011 08:53, Andreas Gustafsson wrote:
> Alistair Crooks wrote:
>> I've been asked to distribute the notes and instructions I received
>> about running NetBSD/EC2 to the port-xen list.  These are from some
>> time ago (June 2010, I believe), but should be useful to people.  I
>> can't remember whether anonymity was requested in this (it's not
>> obvious from my notes of the phone call), I don't think so, but just
>> in case, I'll remove identifying traces.  If I've got it wrong, then
>> I'll re-post with the correct attributions.  Please advise.
>> Please feel free to contact me if anything is unclear.
> Am I correct in assuming that an AMI created by following these
> instructions will panic on boot when launched on EC2, and that "useful
> to people" therefore should be taken more as "useful as a starting
> point for tracking down that issue" than "useful for running NetBSD on
> EC2 today"?

Yes, at least for the i386 32 bits (PAE) kernel. Colin convinced me that
the hypervisor used for EC2 is more strict regarding page pinning (when
you "pin" a page as being a PD, PT for memory translation) than the Xen
one available via pkgsrc. So it panics early during boot, when switching
pmap (when init(8) is first executed).

Dunno about amd64 images though. I am about to start playing with them
when my EC2 packages are finished.

Jean-Yves Migeon

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