Re: [9fans] Fwd: 9pi on qemu failure

Re: [9fans] Fwd: 9pi on qemu failure

[Richard Miller]

>>> I've tried to run 9pi from richard miller on qemu but failed
> ...
>> does anyone have the s9pi kernel image that corresponds to this?
>> i don't so i can't connect this failure to the source.

Looking at file dates, that was an old kernel which came from
9pi.img-old.gz .  I've now replaced 9pi (and added a corresponding
s9pi) with the kernel from the newer 9pi.img.gz, to reduce confusion.

Re: [9fans] Fwd: 9pi on qemu failure

[Richard Miller]

>> This works though with a linux kernel compiled for the raspberry, e.g.
>> from http://xecdesign.com/qemu-emulating-raspberry-pi-the-easy-way/
>> wget http://xecdesign.com/downloads/linux-qemu/kernel-qemu

I would bet that linux kernel isn't actually configured for the
raspberry pi -- it will be for a generic arm1176.  The pi's processor isn't
an arm1176 exactly; it's a Broadcom bcm2835 videocore gpu, with an arm
core grafted on.  It's highly unlikely that qemu knows how to emulate
this well enough for a native bcm kernel like 9pi to run successfuly.
The "emulating raspberry pi the easy way" is not really emulating the
pi, just using a generic arm kernel to run linux software from a
raspberry pi linux distribution image.

If you want to run 9pi, I recommend buying a raspberry pi.  They aren't
expensive, and native Plan 9 is a much more rewarding experience.