xen discuss - Dec 2007 - Linux domU on 64 bit Solaris failing with (almost) no error message

Hi!

Situation:

- Linux domU images downloaded from jailtime.org
- Solaris Express/Nevada 78 64-bit domO
- 64 bit xen kernels retrived and stored on Solaris filesystem
  (e.g: "vmlinuz-2.6.18-8.el5xen" from Centos 5.0 and
   vmlinuz-2.6.22.5-31-xen" from OpenSuse)

The jailtime images does not contain any kernels or anything which is
required to be able to just boot by using pygrub. So I have tried to get
hold of some 64 bit Linux kernels. But whatever I try I always get this
when I attempt to start the guest:

bash-3.2# xm create -c centos.5-0.xen3.cfg
Using config file "./centos.5-0.xen3.cfg".
Error:
bash-3.2#


Not very informative....
Any hints on how I debug this to find out what is wrong? Or if anyone know
off-hand!

A config file example listed below. I have tried several of the kernels
for several of the images, and with or with the ramdisk option.

Mikael


kernel = "/opt/domu/opensuse64/boot/vmlinuz-2.6.22.5-31-xen"
#ramdisk = "/opt/domu/centos/boot/initrd.gz"
memory = 512
name = "centos.5-0"
vif = [ ''bridge=xenbr0'' ]
dhcp = "dhcp"
disk = [''file:/opt/domu/centos/centos.5-0.img,sda1,w'',
''file:/opt/domu/centos/centos.swap,sda2,w'']
root = "/dev/sda1 ro"

mikaeld@dalsgard.fupp.net wrote:
> Hi!
> 
> Situation:
> 
> - Linux domU images downloaded from jailtime.org
> - Solaris Express/Nevada 78 64-bit domO
> - 64 bit xen kernels retrived and stored on Solaris filesystem
>   (e.g: "vmlinuz-2.6.18-8.el5xen" from Centos 5.0 and
>    vmlinuz-2.6.22.5-31-xen" from OpenSuse)
> 
> The jailtime images does not contain any kernels or anything which is
> required to be able to just boot by using pygrub. So I have tried to get
> hold of some 64 bit Linux kernels. But whatever I try I always get this
> when I attempt to start the guest:
> 
> bash-3.2# xm create -c centos.5-0.xen3.cfg
> Using config file "./centos.5-0.xen3.cfg".
> Error:
> bash-3.2#
> 
> 
> Not very informative....
> Any hints on how I debug this to find out what is wrong? Or if anyone know
> off-hand!
> 
> A config file example listed below. I have tried several of the kernels
> for several of the images, and with or with the ramdisk option.
> 
> Mikael
> 
> 
> kernel = "/opt/domu/opensuse64/boot/vmlinuz-2.6.22.5-31-xen"
> #ramdisk = "/opt/domu/centos/boot/initrd.gz"
> memory = 512
> name = "centos.5-0"
> vif = [ ''bridge=xenbr0'' ]
> dhcp = "dhcp"
> disk = [''file:/opt/domu/centos/centos.5-0.img,sda1,w'',
> ''file:/opt/domu/centos/centos.swap,sda2,w'']
> root = "/dev/sda1 ro"
try replacing the vif line with...
  vif = [ '''' ]

I''m not sure if sda* if right for your Linux PV driver
either?



MRJ

Mark Johnson wrote:
> 
> mikaeld@dalsgard.fupp.net wrote:
>> Hi!
>>
>> Situation:
>>
>> - Linux domU images downloaded from jailtime.org
>> - Solaris Express/Nevada 78 64-bit domO
>> - 64 bit xen kernels retrived and stored on Solaris filesystem
>>   (e.g: "vmlinuz-2.6.18-8.el5xen" from Centos 5.0 and
>>    vmlinuz-2.6.22.5-31-xen" from OpenSuse)
>>
>> The jailtime images does not contain any kernels or anything which is
>> required to be able to just boot by using pygrub. So I have tried to
get
>> hold of some 64 bit Linux kernels. But whatever I try I always get this
>> when I attempt to start the guest:
>>
>> bash-3.2# xm create -c centos.5-0.xen3.cfg
>> Using config file "./centos.5-0.xen3.cfg".
>> Error:
>> bash-3.2#
>>
>>
>> Not very informative....
>> Any hints on how I debug this to find out what is wrong? Or if anyone
know
>> off-hand!
>>
>> A config file example listed below. I have tried several of the kernels
>> for several of the images, and with or with the ramdisk option.
>>
>> Mikael
>>
>>
>> kernel = "/opt/domu/opensuse64/boot/vmlinuz-2.6.22.5-31-xen"
>> #ramdisk = "/opt/domu/centos/boot/initrd.gz"
>> memory = 512
>> name = "centos.5-0"
>> vif = [ ''bridge=xenbr0'' ]
>> dhcp = "dhcp"
>> disk =
[''file:/opt/domu/centos/centos.5-0.img,sda1,w'',
>> ''file:/opt/domu/centos/centos.swap,sda2,w'']
>> root = "/dev/sda1 ro"
> 
> try replacing the vif line with...
>   vif = [ '''' ]
> 
> I''m not sure if sda* if right for your Linux PV driver
> either?
try setting up the xen console and the dom0 console, and then watch that 
while you start booting your domU.

HTH
Michael
-- 
Michael Schuster
Recursion, n.: see ''Recursion''

On Tue, December 4, 2007 22:57, Mark Johnson wrote:
> try replacing the vif line with... vif = [ '''' ]
Thank you! That got it booting.
Actually I did find log messages indicating something like this in some
logs after you pointed it out. Oh well...

> I''m not sure if sda* if right for your Linux PV driver
> either?
Turned out ''sda'' was the correct one! But I had to include the
initrd in
the config (the ramdisk option) so it got the driver needed.

Thanx again!

Mikael