Xen users - Feb 2010 - suse 11.2 domU on lvm: anyone succeded?

Hi all

I upgraded my testserver from opensuse 11.1 to 11.2 using zypper based method.
All updates went smooth as far as there were no errors during the update
process. Rebooting the whole farm the troubles started:

not one domU bootet sucessfully, all of them showed the following messages:
...
register_blkdev: cannot get major 8 for sd
...
Volume group "VGsys" not found

before they finally fail

So I though, I set up a new domU using dirinstall, but this script fails also,
actually dirinstall_finish fails. Ok, we still got vm-install, but that fails
too. So I set up a basic image using suse studio hard disk image, dd-ed this to
a lvm volume, but that fails too.


I am out of options for now. Could it be suse 11.2 is messed up?


I would really appreciate someone confirm a succesful install of a new domU and
describe their successful process.

greets chris


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Chris Epicier said the following:
>>
>> I don''t know anything about opensuse or your install
>> method, but based on the error message your first check
>> should be whether the volume group VGsys exists.  
>>     
>
> For sure it does, I have dom0 partition on it. I want to be able to
increase / decrease partitions at will as they might grow, thus the lvm
approach. This *worked* in 11.1.
>
>   
>> After
>> you have confirmed it exists you''ll want to check why it
>> isn''t accessible.  If it doesn''t exist
you''ll need to
>> fix your domU configurations and/or restore the VGsys volume
>> group.
>>     
>
> I can mount each volume dedicated to each domU from dom0. So I consider
this to be enough proof.
>   
Sounds like proof to me.
>> This may also help:
http://wiki.xensource.com/xenwiki/XenFaq#head-baa7000e8fc28fd168650114dd2741b7f21da8fa
>>     
>
> I draw from this link, I should build a new kernel without scsi support. I
did this before, but I was hoping to get it solved by standard, suse stock
packages.
>   
Hmmm, this would be a weird requirement, but if it worked for you before 
it might be necessary.  As I say, I have no SuSE experience.

Before recompiling your kernel I would try using hdX instead of sdX in 
your domU.cfg to see if that works.
> If I succeed this way, I will want to post the success to the list. Would
you agree?
>   
Yes, it is alwasy best to continue a conversation on the list (you''ll 
see I''ve CCed the list in my reply) because others are bound to have 
similar questions / problems and posting back to the list makes it 
easier for them.  And yes, when you find your solution please post it to 
the list as part of this thread.

- Ben


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