[Qemu-devel] What happened to linuxppc-img from Freeoszoo

[Qemu-devel] What happened to linuxppc-img from Freeoszoo

[Tero Kaarlela]

Hi,

    I tried to boot linuxppc image from freeoszoo with QemuCVS. kernel 
boots ok but then I get errors that it cant read filesystem from dev hda.
    Also tried with 0.7.0 and it freezes at: Freeing unused kernel memory

  my boot command line was: 0.7.0 qemu-system-ppc -prep -kernel 
zimage.prep linuxppc.img
                                                CVS qemu-system-ppc M 
prep -kernel zimage.prep linuxppc.img

So am I doing something wrong or is it broken currently?


Tero

Re: [Qemu-devel] What happened to linuxppc-img from Freeoszoo

[jeebs]

"Tero Kaarlela"

>    I tried to boot linuxppc image from freeoszoo with QemuCVS. kernel 
> boots ok but then I get errors that it cant read filesystem from dev hda.
>    Also tried with 0.7.0 and it freezes at: Freeing unused kernel memory

What's the date of the disk image itself?

Late last year, QEMU reworked the disk geometry, and that can confuse old 
disk images.  The images expect an old style and the newer qemu offers a 
different geometry.

qemu now more closely does what a real system does.  But I think somebody in 
the qemu user forum came across a situation where it wasn't true.  Don't 
remember the details, but I think it was for 512m sizes.  I don't remember 
well, so I could be wrong.  Anyway, it works better now than it did before.

Somebody with lots of bandwidth needs to go through those old images and see 
if they still work right.

We know for certain the ReactOS image doesn't work anymore and needs to be 
replaced.  I don't think anybody has gotten around to replacing it, though. 
And since ReactOS is so small and installs so easily, there hasn't been a 
great need to update it.


If you can figure out what the geometry was on the disk image, then you can 
use the -hdacs command line option to tell qemu to use those settings.

[Qemu-devel] Re: What happened to linuxppc-img from Freeoszoo

[Stefano Marinelli]

On Fri, 24 Jun 2005 14:21:04 -0500, <jeebs@yango.us> wrote:
> We know for certain the ReactOS image doesn't work anymore and needs to be 
> replaced.  I don't think anybody has gotten around to replacing it, though. 
> And since ReactOS is so small and installs so easily, there hasn't been a 
> great need to update it.

I've put a new updated image. It works. It's on the freeoszoo


-- 
-------
Stefano
-------

Re: [Qemu-devel] Re: What happened to linuxppc-img from Freeoszoo

[Tero Kaarlela]

Stefano Marinelli wrote:

>On Fri, 24 Jun 2005 14:21:04 -0500, <jeebs@yango.us> wrote:
>  
>
>>We know for certain the ReactOS image doesn't work anymore and needs to be 
>>replaced.  I don't think anybody has gotten around to replacing it, though. 
>>And since ReactOS is so small and installs so easily, there hasn't been a 
>>great need to update it.
>>    
>>
>
>I've put a new updated image. It works. It's on the freeoszoo
>
>  
>

   Of reactos not linuxppc?


Tero

[Qemu-devel] Re: What happened to linuxppc-img from Freeoszoo

[Stefano Marinelli]

On Sat, 25 Jun 2005 19:23:01 +0300, Tero Kaarlela wrote:
>>I've put a new updated image. It works. It's on the freeoszoo
>    Of reactos not linuxppc?

Reactos. If I'll have some time, in the next days, I could prepare a ppc
sarge image.

-- 
-------
Stefano
-------

Re: [Qemu-devel] Re: What happened to linuxppc-img from Freeoszoo

[Tero Kaarlela]

Stefano Marinelli wrote:

>On Sat, 25 Jun 2005 19:23:01 +0300, Tero Kaarlela wrote:
>  
>
>>>I've put a new updated image. It works. It's on the freeoszoo
>>>      
>>>
>>   Of reactos not linuxppc?
>>    
>>
>
>Reactos. If I'll have some time, in the next days, I could prepare a ppc
>sarge image.
>
>  
>
It would be nice since I am trying to add things to PREP residual data. 
And it would be easier to see everything goes in correctly with a 
working linux.


Tero

Re: [Qemu-devel] What happened to linuxppc-img from Freeoszoo

[Jim C. Brown]

> >    I tried to boot linuxppc image from freeoszoo with QemuCVS. kernel
> > boots ok but then I get errors that it cant read filesystem from dev hda.
> >    Also tried with 0.7.0 and it freezes at: Freeing unused kernel memory
> 
> Late last year, QEMU reworked the disk geometry, and that can confuse old
> disk images.  The images expect an old style and the newer qemu offers a
> different geometry.

No, the geometry reported by 0.7.0 (which sees the disk properly and can mount
partition) and CVS (which can't see the partition table) are the same.

For the record, images I've used since qemu 0.5.2 still work fine with CVS.
(I only use raw images though.)

> qemu now more closely does what a real system does.  But I think somebody in
> the qemu user forum came across a situation where it wasn't true.  Don't
> remember the details, but I think it was for 512m sizes.  I don't remember
> well, so I could be wrong.  Anyway, it works better now than it did before.
> 

Actually, the reason that linux-ppc.img broke was due to a hack for darwin/ppc.

I have yet to determine why (i'm not that familiar with PPC or IDE) but the
folllowing patch will fix it. I'm not sure why this small change caused things
to break in the first place.

--- ide.c.old   Sun Jun 26 23:13:40 2005
+++ ide.c       Sun Jun 26 23:13:25 2005
@@ -1491,7 +1491,7 @@
#ifdef TARGET_PPC
         /* XXX: currently a workaround for Darwin/PPC. Need to check
            the IDE spec to see if it is correct */
-        ide_set_signature(s);
+        //ide_set_signature(s);
 #endif
         break;
      default:

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.

Re: [Qemu-devel] What happened to linuxppc-img from Freeoszoo

[jeebs]

"Jim C. Brown"
>> Late last year, QEMU reworked the disk geometry, and that can confuse old
>> disk images.  The images expect an old style and the newer qemu offers a
>> different geometry.
>
> No, the geometry reported by 0.7.0 (which sees the disk properly and can
> mount
> partition) and CVS (which can't see the partition table) are the same.
>

Right... But most of the images on FreeOSZoo were done using the *old*
version of qemu, where the geometry is different.

That means the geometry on the images may not be what newer versions of qemu
expect.

That's why I was asking what the date of the image was.

> For the record, images I've used since qemu 0.5.2 still work fine with
> CVS.
> (I only use raw images though.)

That's good for you.

But some don't.

The ReactOS image is a case I tested myself.  When I saw it reported on the
qemu forum, it was small enough that I spent a few minutes downloading it to
test it.

And newer versions of qemu most definetly would not handle it.  Older 
versions (before the geometry change) could, though.


> Actually, the reason that linux-ppc.img broke was due to a hack for
> darwin/ppc.

I didn't know.

But I did know that a lot of the images on there are older ones that may
have problems like reactos did, which is why I said that somebody needed to
actually test each one, just to make sure they still work.

Re: [Qemu-devel] What happened to linuxppc-img from Freeoszoo

[Jim C. Brown]

On Mon, Jun 27, 2005 at 12:12:43PM -0500, jeebs@yango.us wrote:
> Right... But most of the images on FreeOSZoo were done using the *old*
> version of qemu, where the geometry is different.
> 
> That means the geometry on the images may not be what newer versions of qemu
> expect.
> 
> I did know that a lot of the images on there are older ones that may
> have problems like reactos did, which is why I said that somebody needed to
> actually test each one, just to make sure they still work.
> That's why I was asking what the date of the image was.
> 

For the record, the OpenBSD and the NetBSD images (which I downloaded from the
OS Zoo back in July of '04) work perfectly fine.

> > For the record, images I've used since qemu 0.5.2 still work fine with
> > CVS.
> > (I only use raw images though.)
> 
> That's good for you.
> 
> But some don't.
> 
> The ReactOS image is a case I tested myself.  When I saw it reported on the
> qemu forum, it was small enough that I spent a few minutes downloading it to
> test it.
> 
> And newer versions of qemu most definetly would not handle it.  Older 
> versions (before the geometry change) could, though.
> 

The bochs image of ReactOS 0.2.2-FINAL (the one that you'd get from the
reactos web site) still boots fine. I haven't tried the one from freeoszoo tho.

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.