From: Skip Tavakkolian <skip.tavakkolian@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] 9pi on qemu failure
Date: Mon, 9 Jun 2014 01:30:51 -0700 [thread overview]
Message-ID: <CAJSxfmKoGSoGb0Czbn3nUZusgi8xhjX+hBt=P8x2i3areJ4Q+g@mail.gmail.com> (raw)
In-Reply-To: <6A8E390C-6DFC-4DA1-98F1-BA29D06CFAEA@fb.com>
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if you setup an auth+fs+cpu machine, then you can tftp boot the pi(s); it
is just as fast.
On Mon, Jun 9, 2014 at 12:40 AM, Yoann Padioleau <pad@fb.com> wrote:
> Hi,
>
> I have a raspberry pi :) but I've found it incredibly convenient to have
> an emulator
> to test things. The development iterative loop is far faster when you can
> cross-compile
> from your pc and test directly on your pc. Then once it works you can
> deploy
> and test on the real machine. Anyway, I understand it would be complicated
> to make plan9 works on qemu for arm1176.
>
> On Jun 8, 2014, at 9:02 AM, Richard Miller <9fans@hamnavoe.com> wrote:
>
> >>> This works though with a linux kernel compiled for the raspberry, e.g.
> >>> from
> https://urldefense.proofpoint.com/v1/url?u=http://xecdesign.com/qemu-emulating-raspberry-pi-the-easy-way/&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=%2FN9d7W2LRwZks3eyFNLr8Q%3D%3D%0A&m=xtUc%2B%2BLTD9Nd9zDzA3%2BHrYrg6YJxYvceJz4dKM6VilU%3D%0A&s=aafa0b698d8faa75b24756ff8567b8699fd2686c0d38562cc6c97e5a00bcf362
> >>> wget
> https://urldefense.proofpoint.com/v1/url?u=http://xecdesign.com/downloads/linux-qemu/kernel-qemu&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=%2FN9d7W2LRwZks3eyFNLr8Q%3D%3D%0A&m=xtUc%2B%2BLTD9Nd9zDzA3%2BHrYrg6YJxYvceJz4dKM6VilU%3D%0A&s=bbec0427d0c6670d2da7f7bb614919390a9829436af5205dc85696cf4cb582e5
> >
> > 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.
> >
> >
>
>
>
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next prev parent reply other threads:[~2014-06-09 8:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <D0AA9853-AFD7-455A-BA05-792F6BF97354@hamnavoe.com>
2014-06-08 16:02 ` [9fans] Fwd: " Richard Miller
2014-06-09 7:40 ` [9fans] " Yoann Padioleau
2014-06-09 8:30 ` Skip Tavakkolian [this message]
2014-06-08 0:57 Yoann Padioleau
2014-06-08 11:56 ` erik quanstrom
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