Xen users - Oct 2009 - xen-3.4 on ubuntu 9.04

Hello,

I have installed xen on ubuntu 9.04 according to the following howto:
http://bderzhavets.wordpress.com/2009/08/14/attempt-of-prevu-xen-3-4-1-hypervisor-on-ubuntu-jaunty-server-64-bit/

Still, I cannot boot my dom0 properly. If I choose to boot xen with 
kernel 2.6.31 it first hangs, saying that my sata link is down, and all 
it can get is 1.5gigabit.
And then I get a call trace with a lot of error in xen_.... elements.

If, on the other hand I boot dom0 with kernel 2.6.18 it simply panics, 
being unable to mount my / on md0. My fs is ext3, but all the kernel 
tries is ext2 and iso9660. What am I doing wrong?

Thanks for all help,
mjb

On Tue, Oct 06, 2009 at 12:06:51AM +0200, Maciej Jan Broniarz wrote:
> I have installed xen on ubuntu 9.04 according to the following howto:
>
http://bderzhavets.wordpress.com/2009/08/14/attempt-of-prevu-xen-3-4-1-hypervisor-on-ubuntu-jaunty-server-64-bit/
> 
> Still, I cannot boot my dom0 properly. If I choose to boot xen with 
> kernel 2.6.31 it first hangs, saying that my sata link is down, and all 
> it can get is 1.5gigabit.
> And then I get a call trace with a lot of error in xen_.... elements.
> 
> If, on the other hand I boot dom0 with kernel 2.6.18 it simply panics, 
> being unable to mount my / on md0. My fs is ext3, but all the kernel 
> tries is ext2 and iso9660. What am I doing wrong?
This isn''t the right place to ask about Linux dom0s. Try
xen-users@lists.xensource.com

regards
john

Try this one :-

http://bderzhavets.wordpress.com/2009/06/25/setup-xen-3-4-1-dom0-on-top-of-ubuntu-9-04-server-via-marc-a-dahlhauss-udev-patch/

I ''ve already wrote you that Marc''s UDEV patch is an official
CS 19668 in meantime.
Any linux with UDEV version > 124 does require CS 19668 for Xen 3.4(5)
Hypervisor
deployment.
In general, serial console output is supposed to submitted to xen-devel mailing
list to get valuable feedback from core pv_ops kernel developers.

Boris.


--- On Mon, 10/5/09, John Levon <john.levon@sun.com> wrote:

From: John Levon <john.levon@sun.com>
Subject: Re: [xen-discuss] xen-3.4 on ubuntu 9.04
To: "Maciej Jan Broniarz" <gausus@gausus.net>
Cc: xen-discuss@opensolaris.org, "Boris Derzhavets"
<bderzhavets@yahoo.com>
Date: Monday, October 5, 2009, 6:21 PM

On Tue, Oct 06, 2009 at 12:06:51AM +0200, Maciej Jan Broniarz wrote:
> I have installed xen on ubuntu 9.04 according to the following howto:
>
http://bderzhavets.wordpress.com/2009/08/14/attempt-of-prevu-xen-3-4-1-hypervisor-on-ubuntu-jaunty-server-64-bit/
> 
> Still, I cannot boot my dom0 properly. If I choose to boot xen with 
> kernel 2.6.31 it first hangs, saying that my sata link is down, and all 
> it can get is 1.5gigabit.
> And then I get a call trace with a lot of error in xen_.... elements.
> 
> If, on the other hand I boot dom0 with kernel 2.6.18 it simply panics, 
> being unable to mount my / on md0. My fs is ext3, but all the kernel 
> tries is ext2 and iso9660. What am I doing wrong?
This isn''t the right place to ask about Linux dom0s. Try
xen-users@lists.xensource.com

regards
john



      

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W dniu 09-10-06 05:22, Boris Derzhavets pisze:
> Try this one :-
>
>
http://bderzhavets.wordpress.com/2009/06/25/setup-xen-3-4-1-dom0-on-top-of-ubuntu-9-04-server-via-marc-a-dahlhauss-udev-patch/
>
> I ''ve already wrote you that Marc''s UDEV patch is an
official CS 19668
> in meantime.
> Any linux with UDEV version > 124 does require CS 19668 for Xen 3.4(5)
> Hypervisor
> deployment.
> In general, serial console output is supposed to submitted to xen-devel
> mailing
> list to get valuable feedback from core pv_ops kernel developers.
>
I have tried this howto as well. The erorrs look pretty much the same. 
There is one issue - my server doesn''t have a serial port of any kind. 
Just few usb :(

Is there any modern distro, that comes with packaged xen kernel and tools?

Regards,
mjb


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On Tue, Oct 6, 2009 at 2:04 PM, Maciej Jan Broniarz <gausus@gausus.net>
wrote:
> Is there any modern distro, that comes with packaged xen kernel and tools?
Let''s see .. Opensolaris has Xen 3.3.1. That may be "modern
enough",
depending on your needs.
Xen 3.4 is also available, but you need to compile it first (which is
MUCH harder than compiling Xen on Linux.

With Linux dom0 I''d prefer to use RHEL/Centos5 and install Xen
packages from http://www.gitco.de/repo/. That combination gives
up-to-date Xen (3.4.1) as well as Redhat''s well-maintained kernel-xen
(which also contains backported drivers).
Note that with this setup some newer features (like scsi passthru)
will not work due to lack of support in Redhat''s kernel-xen, but it
should be suitable for common purposes.

-- 
Fajar

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W dniu 09-10-06 09:37, Fajar A. Nugraha pisze:
> On Tue, Oct 6, 2009 at 2:04 PM, Maciej Jan
Broniarz<gausus@gausus.net>  wrote:
>
> With Linux dom0 I''d prefer to use RHEL/Centos5 and install Xen
> packages from http://www.gitco.de/repo/. That combination gives
> up-to-date Xen (3.4.1) as well as Redhat''s well-maintained
kernel-xen
> (which also contains backported drivers).
> Note that with this setup some newer features (like scsi passthru)
> will not work due to lack of support in Redhat''s kernel-xen, but
it
> should be suitable for common purposes.
>
Thx. I have installed 3.4.1 and it apears to work fine, with one minor 
issue. When I boot to dom0 my display goes crazy and shows lots of 
random symbols and colors. Still i can SSH to the server so it''s not a 
real problem.

One more question - should i set dom0_mem to some value (eg 512mb) or 
just let dom0 manage memory for itself?

Regards,
mjb


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http://lists.xensource.com/xen-users

On Tue, Oct 6, 2009 at 6:19 PM, Maciej Jan Broniarz <gausus@gausus.net>
wrote:
> Thx. I have installed 3.4.1 and it apears to work fine, with one minor
> issue. When I boot to dom0 my display goes crazy and shows lots of random
> symbols and colors. Still i can SSH to the server so it''s not a
real
> problem.
Which OS/distro is it? You might be able to workaround this by
disabling graphical booting. On RHEL/Centos remove "rhgb", while on
Ubuntu remove "splash" from kernel args on grub''s menu.lst.
>
> One more question - should i set dom0_mem to some value (eg 512mb) or just
> let dom0 manage memory for itself?
You should set it to a value that allows dom0 to run without swapping
while at the same time allowing domU to start without having to ballon
down dom0 memory. 512MB is a good starting point for a dom0 that
doesn''t run any aditional services.

-- 
Fajar

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Xen-users mailing list
Xen-users@lists.xensource.com
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On Tue, Oct 6, 2009 at 6:19 PM, Maciej Jan Broniarz <gausus@gausus.net>
wrote:
> Thx. I have installed 3.4.1 and it apears to work fine, with one minor
> issue. When I boot to dom0 my display goes crazy and shows lots of random
> symbols and colors. Still i can SSH to the server so it''s not a
real
> problem.
That is not supposed to happen . Try to disable DRM at all.

Boris.
P.S.  Which  Video Card is installed ?

--- On Tue, 10/6/09, Fajar A. Nugraha <fajar@fajar.net> wrote:

From: Fajar A. Nugraha <fajar@fajar.net>
Subject: Re: [Xen-users] Re: [xen-discuss] xen-3.4 on ubuntu 9.04
To: "Maciej Jan Broniarz" <gausus@gausus.net>
Cc: xen-users@lists.xensource.com
Date: Tuesday, October 6, 2009, 9:11 AM

On Tue, Oct 6, 2009 at 6:19 PM, Maciej Jan Broniarz <gausus@gausus.net>
wrote:
> Thx. I have installed 3.4.1 and it apears to work fine, with one minor
> issue. When I boot to dom0 my display goes crazy and shows lots of random
> symbols and colors. Still i can SSH to the server so it''s not a
real
> problem.
Which OS/distro is it? You might be able to workaround this by
disabling graphical booting. On RHEL/Centos remove "rhgb", while on
Ubuntu remove "splash" from kernel args on grub''s menu.lst.
>
> One more question - should i set dom0_mem to some value (eg 512mb) or just
> let dom0 manage memory for itself?
You should set it to a value that allows dom0 to run without swapping
while at the same time allowing domU to start without having to ballon
down dom0 memory. 512MB is a good starting point for a dom0 that
doesn''t run any aditional services.

-- 
Fajar

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W dniu 09-10-06 16:34, Boris Derzhavets pisze:
> On Tue, Oct 6, 2009 at 6:19 PM, Maciej Jan Broniarz <gausus@gausus.net
> <http://us.mc561.mail.yahoo.com/mc/compose?to=gausus@gausus.net>>
wrote:
>  > Thx. I have installed 3.4.1 and it apears to work fine, with one
minor
>  > issue. When I boot to dom0 my display goes crazy and shows lots of
random
>  > symbols and colors. Still i can SSH to the server so it''s
not a real
>  > problem.
>
> That is not supposed to happen . Try to disable DRM at all.
Ok. I''ll do so.
>
> Boris.
> P.S. Which Video Card is installed ?
Matrox g450 or g550 pci.

Regards,
mjb
>
> --- On *Tue, 10/6/09, Fajar A. Nugraha /<fajar@fajar.net>/* wrote:
>
>
>     From: Fajar A. Nugraha <fajar@fajar.net>
>     Subject: Re: [Xen-users] Re: [xen-discuss] xen-3.4 on ubuntu 9.04
>     To: "Maciej Jan Broniarz" <gausus@gausus.net>
>     Cc: xen-users@lists.xensource.com
>     Date: Tuesday, October 6, 2009, 9:11 AM
>
>     On Tue, Oct 6, 2009 at 6:19 PM, Maciej Jan Broniarz
>     <gausus@gausus.net </mc/compose?to=gausus@gausus.net>>
wrote:
>      > Thx. I have installed 3.4.1 and it apears to work fine, with one
>     minor
>      > issue. When I boot to dom0 my display goes crazy and shows lots
>     of random
>      > symbols and colors. Still i can SSH to the server so
it''s not a real
>      > problem.
>
>     Which OS/distro is it? You might be able to workaround this by
>     disabling graphical booting. On RHEL/Centos remove "rhgb",
while on
>     Ubuntu remove "splash" from kernel args on grub''s
menu.lst.
>
>      >
>      > One more question - should i set dom0_mem to some value (eg
>     512mb) or just
>      > let dom0 manage memory for itself?
>
>     You should set it to a value that allows dom0 to run without swapping
>     while at the same time allowing domU to start without having to ballon
>     down dom0 memory. 512MB is a good starting point for a dom0 that
>     doesn''t run any aditional services.
>
>     --
>     Fajar
>
>     _______________________________________________
>     Xen-users mailing list
>     Xen-users@lists.xensource.com
>     </mc/compose?to=Xen-users@lists.xensource.com>
>     http://lists.xensource.com/xen-users
>
>

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W dniu 09-10-06 17:51, Maciej Jan Broniarz pisze:
> W dniu 09-10-06 16:34, Boris Derzhavets pisze:
>> On Tue, Oct 6, 2009 at 6:19 PM, Maciej Jan Broniarz
<gausus@gausus.net
>>
<http://us.mc561.mail.yahoo.com/mc/compose?to=gausus@gausus.net>>
wrote:
>> > Thx. I have installed 3.4.1 and it apears to work fine, with one
minor
>> > issue. When I boot to dom0 my display goes crazy and shows lots of
>> random
>> > symbols and colors. Still i can SSH to the server so it''s
not a real
>> > problem.
>>
>> That is not supposed to happen . Try to disable DRM at all.
There is no sign of drm in my udev. Is there a way to disable it without 
recompiling the whole kernel?

Regards,
mjb

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