Xen users - Oct 2006 - installing xen-3.0.3 on AMD sempron, CentOS4.4

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Hi

I''m currently using xen-3.0.2-testing on several servers. But when xen
3.0.3 was announced I wanted to try it, of course it should have several
iprovements and bugfixes, etc.

I did the same steps I was previously done in order to compile
xen-3.0.2, and in fact xen compiled and installed very cleanly.

I created my initrd image and then I modded grub.conf in order to boot
from the newly compiled xen.. and to my surprise it came up with a panic:

mount: error 6 mounting ext3
mount: error 2 mounting none
Switching to new root
switchroot: mount failed: 22
unmount /initrd/dev failed: 2
Kernel panic - not syncing: Attempted to kill init!

I have tried to compile it on several ocassions. On the same PC, it is
an AMD sempron with 1GB RAM, 10GB HD. The /boot and / FS is ext3.

I have again compiled xen-3.0.2-testing and it works perfectly.

Last night I downloaded the RHEL rpms and installed them. I updated
grub.conf to use the newly installed kernel/initrd from rpms and again
the same problem.

I have tried not using LVM2, using LVM2, but no success.

I see several people already are using xen-3.0.3 and nobody has, at the
moment, reported this issue. Maybe it is related to my hardware
configuration? Anyway, it works ok with xen-3.0.2 maybe something has
changed that I dont know?

I can see it is not an uncommon error, it is sometimes reported. I guess
it is related to the kernel not being able to detect the ext3 FS...

regards
epe
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> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com 
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of 
> "Ing. Ernesto Pérez Estévez"
> Sent: 26 October 2006 18:39
> To: xen-users@lists.xensource.com
> Subject: [Xen-users] installing xen-3.0.3 on AMD sempron, CentOS4.4
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi
> 
> I''m currently using xen-3.0.2-testing on several servers. But when
xen
> 3.0.3 was announced I wanted to try it, of course it should 
> have several
> iprovements and bugfixes, etc.
> 
> I did the same steps I was previously done in order to compile
> xen-3.0.2, and in fact xen compiled and installed very cleanly.
> 
> I created my initrd image and then I modded grub.conf in order to boot
> from the newly compiled xen.. and to my surprise it came up 
> with a panic:
> 
> mount: error 6 mounting ext3
> mount: error 2 mounting none
> Switching to new root
> switchroot: mount failed: 22
> unmount /initrd/dev failed: 2
> Kernel panic - not syncing: Attempted to kill init!
This is certainly nothing to do with the brand or model of processor.
You''re missing the initrd, or your initrd isn''t complete (i.e.
it''s missing drivers for your hard-disk driver or filesystem).

You can either try to fix the initrd, or get the source and rebuild the vmlinuz
to have "builtin" drivers for your type of hard-disk/filesystem/etc.

--
Mats



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Same issue on an older system this morning...

mkinitrd -v -f initrd-2.6.16.29-xen_3.0.3.0.img 2.6.16.29-xen_3.0.3.0
--with=ide-disk --with=sd_mod --with=ide-generic --with=ext3 --with=piix
--with=sym53c8xx

ide-generic is what did it for me...

J.J.
 
> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com 
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of 
> Petersson, Mats
> Sent: Friday, October 27, 2006 3:24 AM
> To: Ing. Ernesto Pérez Estévez; xen-users@lists.xensource.com
> Subject: RE: [Xen-users] installing xen-3.0.3 on AMD sempron, 
> CentOS4.4
> 
>  
> 
> > -----Original Message-----
> > From: xen-users-bounces@lists.xensource.com
> > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of "Ing.
> > Ernesto Pérez Estévez"
> > Sent: 26 October 2006 18:39
> > To: xen-users@lists.xensource.com
> > Subject: [Xen-users] installing xen-3.0.3 on AMD sempron, CentOS4.4
> > 
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > Hi
> > 
> > I''m currently using xen-3.0.2-testing on several servers. 
> But when xen
> > 3.0.3 was announced I wanted to try it, of course it should have 
> > several iprovements and bugfixes, etc.
> > 
> > I did the same steps I was previously done in order to compile 
> > xen-3.0.2, and in fact xen compiled and installed very cleanly.
> > 
> > I created my initrd image and then I modded grub.conf in 
> order to boot 
> > from the newly compiled xen.. and to my surprise it came up with a 
> > panic:
> > 
> > mount: error 6 mounting ext3
> > mount: error 2 mounting none
> > Switching to new root
> > switchroot: mount failed: 22
> > unmount /initrd/dev failed: 2
> > Kernel panic - not syncing: Attempted to kill init!
> 
> This is certainly nothing to do with the brand or model of 
> processor. You''re missing the initrd, or your initrd
isn''t
> complete (i.e. it''s missing drivers for your hard-disk driver 
> or filesystem). 
> 
> You can either try to fix the initrd, or get the source and 
> rebuild the vmlinuz to have "builtin" drivers for your type 
> of hard-disk/filesystem/etc. 
> 
> --
> Mats
> 
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
> 

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Hello all,

Friday, October 27, 2006, 11:54:15 PM, you wrote:
> Same issue on an older system this morning...
> mkinitrd -v -f initrd-2.6.16.29-xen_3.0.3.0.img 2.6.16.29-xen_3.0.3.0
> --with=ide-disk --with=sd_mod --with=ide-generic --with=ext3 --with=piix
> --with=sym53c8xx
> ide-generic is what did it for me...
I would say when you use --with=ide-generic first it will catch
system basics and you will not get DMA to work. I have tested this on
my system. I have had to "preload" piix and it821x drivers first to
have the DMA available again on all drivers

--preload=piix --preload=it821x

of course this is only a option for those who do not have those
drivers compiled into the kernel or are using rpm from xensourse
download repository.

-- 
Best regards,
 Martin Mosny

-- 
Best regards,
 Martin                            mailto:mmosny@voxel.sk


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On 10/26/06, "Ing. Ernesto Pérez Estévez"
<info@ernestoperez.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi
>
> I''m currently using xen-3.0.2-testing on several servers. But when
xen
> 3.0.3 was announced I wanted to try it, of course it should have several
> iprovements and bugfixes, etc.
>
> I created my initrd image and then I modded grub.conf in order to boot
> from the newly compiled xen.. and to my surprise it came up with a panic:
>
> mount: error 6 mounting ext3
> mount: error 2 mounting none
> Switching to new root
> switchroot: mount failed: 22
> unmount /initrd/dev failed: 2
> Kernel panic - not syncing: Attempted to kill init!
>
>
I have also had this problem on CentOS.  I found that copying my old
centos kernel config from /boot into the xen/linux2.6...-xen/
directory (as .config), running "make oldconfig" and then rebuilding
gave me a kernel/modules which worked.  There must be something
missing in the config, although I haven''t been able to find exactly
what.

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