Xen devel - Apr 2006 - error msg

I am attempting to run xm-test in hvm mode.  I built successfully and
then started runtests.sh. After about 30 seconds an error message
appeared "Timed out connecting to console" or similar.  I then used
xmexample.hvm to manually try and start disk.img fully virtualized and
the following was the last few lines on the vms terminal:
 
VFS: Cannot open root device "0301" or unknown-block(3,1)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(3,1)

Can anyone tell me what I am doing wrong and/or help me figure out how
to make this work?

tia,
 Lynn


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I am attempting to run xm-test in hvm mode.  I built successfully and then
started runtests.sh. After about 30 seconds an error message appeared
"Timed out connecting to console" or similar.  I then used
xmexample.hvm to manually try and start disk.img fully virtualized and the
following was the last few lines on the VMs terminal:
 
VFS: Cannot open root device "0301" or unknown-block(3,1)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(3,1)

Has anyone else seen this issue?  Did I do something wrong?

I built on SLES 10 beta 9 using that kernel for --with-hvm-kernel.

Regards,
 Lynn





Lynn Bendixsen
Software Engineer
lbendixs@novell.com



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On Tue, 2006-04-11 at 11:06 -0600, Lynn Bendixsen wrote:
> I am attempting to run xm-test in hvm mode.  I built successfully and then
started runtests.sh. After about 30 seconds an error message appeared
"Timed out connecting to console" or similar.  I then used
xmexample.hvm to manually try and start disk.img fully virtualized and the
following was the last few lines on the VMs terminal:
>  
> VFS: Cannot open root device "0301" or unknown-block(3,1)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(3,1)
> 
> Has anyone else seen this issue?  Did I do something wrong?
> 
> I built on SLES 10 beta 9 using that kernel for --with-hvm-kernel.

Hi, 

I just built the latest tip and was able to run the disk.img manually. I
was also able to run the _sanity tests from xm-test - all in hvm mode.

Questions:

1) Could you provide your config file - xmexample.hvm - that you''re
using? 

2) Is the SLES10 beta 9 kernel a non-Xen kernel? 

3) Can you boot a non-xm-test disk image fully virtualized? 

Thanks,

Dan


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>> I am attempting to run xm- test in hvm mode.  I built successfully and
then
> started runtests.sh. After about 30 seconds an error message appeared
"Timed
> out connecting to console" or similar.  I then used xmexample.hvm to
manually
> try and start disk.img fully virtualized and the following was the last few
> lines on the VMs terminal:
>>  
>> VFS: Cannot open root device "0301" or unknown- block(3,1)
>> Please append a correct "root=" boot option
>> Kernel panic -  not syncing: VFS: Unable to mount root fs on unknown-
block(3,1)
>> Has anyone else seen this issue?  Did I do something wrong?
>> I built on SLES 10 beta 9 using that kernel for -- with- hvm- kernel.
> 
> Hi, 
> 
> I just built the latest tip and was able to run the disk.img manually. I
> was also able to run the _sanity tests from xm- test -  all in hvm mode.
> 
> Questions:
> 1) Could you provide your config file -  xmexample.hvm -  that
you''re
> using? 
> 2) Is the SLES10 beta 9 kernel a non- Xen kernel? 
> 3) Can you boot a non- xm- test disk image fully virtualized? 
> 
> Thanks,
> Dan
>
Hi Dan,

Answers:
1) attached - All I changed from my original file was the "file=" line
and possibly the memory.
2) yes
3) yes

TIA, :)
Lynn



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On Tue, 2006-04-11 at 14:21 -0600, Lynn Bendixsen wrote:
> >> I am attempting to run xm- test in hvm mode.  I built successfully
and then
> > started runtests.sh. After about 30 seconds an error message appeared
"Timed
> > out connecting to console" or similar.  I then used xmexample.hvm
to manually
> > try and start disk.img fully virtualized and the following was the
last few
> > lines on the VMs terminal:
> >>  
> >> VFS: Cannot open root device "0301" or unknown-
block(3,1)
> >> Please append a correct "root=" boot option
> >> Kernel panic -  not syncing: VFS: Unable to mount root fs on
unknown- block(3,1)
> >> Has anyone else seen this issue?  Did I do something wrong?
> >> I built on SLES 10 beta 9 using that kernel for -- with- hvm-
kernel.
> > 
> > Hi, 
> > 
> > I just built the latest tip and was able to run the disk.img manually.
I
> > was also able to run the _sanity tests from xm- test -  all in hvm
mode.
> > 
> > Questions:
> > 1) Could you provide your config file -  xmexample.hvm -  that
you''re
> > using? 
> > 2) Is the SLES10 beta 9 kernel a non- Xen kernel? 
> > 3) Can you boot a non- xm- test disk image fully virtualized? 
> > 
> > Thanks,
> > Dan
> >
> 
> Hi Dan,
> 
> Answers:
> 1) attached - All I changed from my original file was the "file="
line and possibly the memory.
> 2) yes
> 3) yes

It won''t boot an SMP kernel. I bet the default kernel you''re
building
with is SMP, right? HVM doesn''t support SMP yet, I believe, although
Intel people are working on that. I haven''t debugged any further but
I''ve confirmed that an SMP kernel on the disk.img won''t boot.

Thanks,

Dan


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