[9fans] Best Emulator to Run Plan9 in?

[9fans] Best Emulator to Run Plan9 in?

[Dimitry Golubovsky]

Hi,

I have just subscribed to this list. I am planning ahead to experiment 
with Plan9, but I want to set it up under an emulator (the host system 
is Linux with 2.2.16 kernel). I saw some messages from last year 
mentioning plan9 running in QEMU. Another emulator candidate would be 
Bochs. Could anyone please share their recent experience regarding 
running Plan9 in an emulator, are there any serious issues, etc.

I am looking into using an opensource emulator, so VMWARE would not be a 
candidate for me.

Thank you.

Dimitry Golubovsky
Middletown, CT

Re: [9fans] Best Emulator to Run Plan9 in?

[Russ Cox]

> I have just subscribed to this list. I am planning ahead to experiment
> with Plan9, but I want to set it up under an emulator (the host system
> is Linux with 2.2.16 kernel). I saw some messages from last year
> mentioning plan9 running in QEMU. Another emulator candidate would be
> Bochs. Could anyone please share their recent experience regarding
> running Plan9 in an emulator, are there any serious issues, etc.

I have been running Plan 9 in QEMU for the past 
few days and it has worked well.  I put changes on 
sources a few days ago that correct some problems
with the ethernet and disk simulation.  I think I also
fixed the dreaded "hangs under VMware unless there
is a CD in the drive" bug too.

It just boots: qemu -cdrom plan9.iso -boot d
You can only select graphics depths of 8bpp
(e.g., 1024x768x8).

Russ

Re: [9fans] Best Emulator to Run Plan9 in?

[Catalin(ux aka Dino) BOIE]

On Tue, 5 Apr 2005, Dimitry Golubovsky wrote:

> Hi,
>
> I have just subscribed to this list. I am planning ahead to experiment with 
> Plan9, but I want to set it up under an emulator (the host system is Linux 
> with 2.2.16 kernel). I saw some messages from last year mentioning plan9 
> running in QEMU. Another emulator candidate would be Bochs. Could anyone 
> please share their recent experience regarding running Plan9 in an emulator, 
> are there any serious issues, etc.
>
> I am looking into using an opensource emulator, so VMWARE would not be a 
> candidate for me.
>
> Thank you.
>
> Dimitry Golubovsky
> Middletown, CT
>

I use qemu with success.
A little slow, but it works.

---
Catalin(ux aka Dino) BOIE
catab at deuroconsult.ro
http://kernel.umbrella.ro/

Re: [9fans] Best Emulator to Run Plan9 in?

[Devon H. O'Dell]

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On Tue, Apr 05, 2005 at 01:41:45AM -0400, Russ Cox wrote:
> > I have just subscribed to this list. I am planning ahead to experiment
> > with Plan9, but I want to set it up under an emulator (the host system
> > is Linux with 2.2.16 kernel). I saw some messages from last year
> > mentioning plan9 running in QEMU. Another emulator candidate would be
> > Bochs. Could anyone please share their recent experience regarding
> > running Plan9 in an emulator, are there any serious issues, etc.
> 
> I have been running Plan 9 in QEMU for the past 
> few days and it has worked well.  I put changes on 
> sources a few days ago that correct some problems
> with the ethernet and disk simulation.  I think I also
> fixed the dreaded "hangs under VMware unless there
> is a CD in the drive" bug too.
> 
> It just boots: qemu -cdrom plan9.iso -boot d
> You can only select graphics depths of 8bpp
> (e.g., 1024x768x8).
> 
> Russ

I just pulled from sources and tried to boot in 4.5.2
workstation with an empty CD `drive', but it still doesn't
appear to work. Qemu's been working fine for me though :)

--Devon

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Re: [9fans] Best Emulator to Run Plan9 in?

[Russ Cox]

> I just pulled from sources and tried to boot in 4.5.2
> workstation with an empty CD `drive', but it still doesn't
> appear to work. Qemu's been working fine for me though :)

You'd also need to install a new kernel and a new 9load.
They haven't been rebuilt yet.

Russ

Re: [9fans] Best Emulator to Run Plan9 in?

[Devon H. O'Dell]

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On Tue, Apr 05, 2005 at 08:59:55AM -0400, Russ Cox wrote:
> > I just pulled from sources and tried to boot in 4.5.2
> > workstation with an empty CD `drive', but it still doesn't
> > appear to work. Qemu's been working fine for me though :)
> 
> You'd also need to install a new kernel and a new 9load.
> They haven't been rebuilt yet.
> 
> Russ

Duh. I've been coffee-deprived today. Time to build the kernel
and set a pot.

--Devon


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Re: [9fans] Best Emulator to Run Plan9 in?

[Devon H. O'Dell]

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On Tue, Apr 05, 2005 at 03:05:56PM +0200, Devon H. O'Dell  wrote:
> On Tue, Apr 05, 2005 at 08:59:55AM -0400, Russ Cox wrote:
> > > I just pulled from sources and tried to boot in 4.5.2
> > > workstation with an empty CD `drive', but it still doesn't
> > > appear to work. Qemu's been working fine for me though :)
> > 
> > You'd also need to install a new kernel and a new 9load.
> > They haven't been rebuilt yet.
> > 
> > Russ
> 
> Duh. I've been coffee-deprived today. Time to build the kernel
> and set a pot.
> 
> --Devon

Still hangs. I built a new pcf kernel and built 9load from
/sys/src/boot/pc; copied them both into /n/9fat (renaming 9load
to 9LOAD). Did I miss something else?

--Devon


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Re: [9fans] Best Emulator to Run Plan9 in?

[Russ Cox]

> Still hangs. I built a new pcf kernel and built 9load from
> /sys/src/boot/pc; copied them both into /n/9fat (renaming 9load
> to 9LOAD). Did I miss something else?

that's too bad.  what does it print before hanging?

qemu was hanging in the same place that people
reported vmware hanging, but i guess i only fixed
qemu's bug.

russ

Re: [9fans] Best Emulator to Run Plan9 in?

[Devon H. O'Dell]

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On Tue, Apr 05, 2005 at 09:19:02AM -0400, Russ Cox wrote:
> > Still hangs. I built a new pcf kernel and built 9load from
> > /sys/src/boot/pc; copied them both into /n/9fat (renaming 9load
> > to 9LOAD). Did I miss something else?
> 
> that's too bad.  what does it print before hanging?
> 
> qemu was hanging in the same place that people
> reported vmware hanging, but i guess i only fixed
> qemu's bug.
> 
> russ

MBR...PBS...Plan 9 from Bell Labs
ELCR: 0C00
apm ax=f000 cx=f000 dx=40 di=ffff ebx=5a49 esi=-1
dev A0 port 1F0 config 427A capabilities 2F00 mwdma 0007 udma 0407
dev B0 port 1F0 config 85C4 capabilities 0F00 mwdma 0007 udma 0407

--Devon


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Re: [9fans] Best Emulator to Run Plan9 in?

[Derek Fawcus]

On Tue, Apr 05, 2005 at 01:41:45AM -0400, Russ Cox wrote:
> 
> I have been running Plan 9 in QEMU for the past 
> few days and it has worked well.  I put changes on 
> sources a few days ago that correct some problems
> with the ethernet and disk simulation.

So it was definitely a plan 9 bug,  not a QEMU bug?

I seem to recall there have been problems with the
QEMU ATA emulation,  to the extent that some versions
of NT refuse to recognise the disk.

DF

Re: [9fans] Best Emulator to Run Plan9 in?

[Russ Cox]

> So it was definitely a plan 9 bug,  not a QEMU bug?
> 
> I seem to recall there have been problems with the
> QEMU ATA emulation,  to the extent that some versions
> of NT refuse to recognise the disk.

assigning blame is hard.  the two didn't agree
on how to behave.  it's easier for me to change plan 9
than change qemu.  

russ