Xen devel - Nov 2009 - [Xen-usersl] Xen 2.6.18.8 Kernel tree on Ubuntu Kamic

All,

Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
2.6.18.8 tree on new ubuntyu karmic koala.
I have tried this combination on different machine AMD64, intel i386,
but every time I boot process is stop at

"Waiting for root file system" , After some time the promt drops to
initramfs shell.
I am sure the problem is not due to NOT selecting prooper SATA
controller or something ike that.....

I have tried similar hardware configuration with Xen on Jaunty it
works without any problem.
I am just wondering why it is refusing to work on Karmic, possible reasons.
1. gcc 4.4
2. make version
3. your thoughts please????

I have tried pvops kernel, it works but I need 2.6.18.8 tree so any thoughts???



thanks
-tej

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Sun, Nov 08, 2009 at 11:14:40AM +0530, Tej wrote:
> All,
> 
> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
> 2.6.18.8 tree on new ubuntyu karmic koala.
> I have tried this combination on different machine AMD64, intel i386,
> but every time I boot process is stop at
> 
> "Waiting for root file system" , After some time the promt drops
to
> initramfs shell.
> I am sure the problem is not due to NOT selecting prooper SATA
> controller or something ike that.....
> 
> I have tried similar hardware configuration with Xen on Jaunty it
> works without any problem.
> I am just wondering why it is refusing to work on Karmic, possible reasons.
> 1. gcc 4.4
> 2. make version
> 3. your thoughts please????
> 
> I have tried pvops kernel, it works but I need 2.6.18.8 tree so any
thoughts???
It sounds a lot like the correct modules aren''t being loaded up for
2.8.18.8 by the initramfs (that was presumably created while
running a much newer kernel). When you drop into the initramfs shell
can you see the root device?


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Sun, Nov 8, 2009 at 4:17 PM, Simon Horman <horms@verge.net.au>
wrote:
> On Sun, Nov 08, 2009 at 11:14:40AM +0530, Tej wrote:
>> All,
>>
>> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
>> 2.6.18.8 tree on new ubuntyu karmic koala.
>> I have tried this combination on different machine AMD64, intel i386,
>> but every time I boot process is stop at
>>
>> "Waiting for root file system" , After some time the promt
drops to
>> initramfs shell.
>> I am sure the problem is not due to NOT selecting prooper SATA
>> controller or something ike that.....
>>
>> I have tried similar hardware configuration with Xen on Jaunty it
>> works without any problem.
>> I am just wondering why it is refusing to work on Karmic, possible
reasons.
>> 1. gcc 4.4
>> 2. make version
>> 3. your thoughts please????
>>
>> I have tried pvops kernel, it works but I need 2.6.18.8 tree so any
thoughts???
>
> It sounds a lot like the correct modules aren''t being loaded up
for
> 2.8.18.8 by the initramfs (that was presumably created while
> running a much newer kernel). When you drop into the initramfs shell
> can you see the root device?
Thats the issue, boot process tries to detect root filesystem, but it
can''t. Some reasons for this I know are:
1. Storage controllers are not in kernel and initramfs
2. Pointing wront root device

I could say that both of the problem does not exist.
Now question why configuration worked on jaunty and why not in karmic??

>
>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Sun, Nov 08, 2009 at 11:14:40AM +0530, Tej wrote:
> All,
> 
> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
> 2.6.18.8 tree on new ubuntyu karmic koala.
> I have tried this combination on different machine AMD64, intel i386,
> but every time I boot process is stop at
> 
> "Waiting for root file system" , After some time the promt drops
to
> initramfs shell.
Well.. it either means the driver for your SATA controller is not
loaded, the driver is misbehaving or the driver is too old to actually
support the controller.
> I am sure the problem is not due to NOT selecting prooper SATA
> controller or something ike that.....
> 
You should enable/configure serial console and capture the full xen and
dom0 kernel boot logs so we can see what''s wrong..

that''s the easiest way to troubleshoot the problem.
> I have tried similar hardware configuration with Xen on Jaunty it
> works without any problem.
> I am just wondering why it is refusing to work on Karmic, possible reasons.
> 1. gcc 4.4
> 2. make version
> 3. your thoughts please????
> 
> I have tried pvops kernel, it works but I need 2.6.18.8 tree so any
thoughts???
> 
Any particular reason for that?

Have you considered the novell/opensuse forward-ported 2.6.18 patches for
2.6.3x?

http://wiki.xensource.com/xenwiki/XenDom0Kernels

-- Pasi


_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

On Sun, Nov 8, 2009 at 5:07 PM, Pasi Kärkkäinen <pasik@iki.fi>
wrote:
> On Sun, Nov 08, 2009 at 11:14:40AM +0530, Tej wrote:
>> All,
>>
>> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
>> 2.6.18.8 tree on new ubuntyu karmic koala.
>> I have tried this combination on different machine AMD64, intel i386,
>> but every time I boot process is stop at
>>
>> "Waiting for root file system" , After some time the promt
drops to
>> initramfs shell.
>
> Well.. it either means the driver for your SATA controller is not
> loaded, the driver is misbehaving or the driver is too old to actually
> support the controller.
Fine.
>
>> I am sure the problem is not due to NOT selecting prooper SATA
>> controller or something ike that.....
>>
>
> You should enable/configure serial console and capture the full xen and
> dom0 kernel boot logs so we can see what''s wrong..
I will try get boot logs ASAP, however i guess netconsole is a better option.
>
> that''s the easiest way to troubleshoot the problem.
>
>> I have tried similar hardware configuration with Xen on Jaunty it
>> works without any problem.
>> I am just wondering why it is refusing to work on Karmic, possible
reasons.
>> 1. gcc 4.4
>> 2. make version
>> 3. your thoughts please????
>>
>> I have tried pvops kernel, it works but I need 2.6.18.8 tree so any
thoughts???
>>
>
> Any particular reason for that?
>
> Have you considered the novell/opensuse forward-ported 2.6.18 patches for
2.6.3x?
>
> http://wiki.xensource.com/xenwiki/XenDom0Kernels
Ok, I think I am not clearly spelling out the problem.

1. Xen with Linux 2.6.18.8 on AMD64 hardware. OS: Ubuntu Jaunty.
Everything is working fine.
2. Xen with Linux 2.6.18.8 on *Same* AMD64 hardware. OS: Ubuntu
Karmic. Boot process fails with error Waiting for filesystem


Difference between 1 and 2 are *only* OS. Nothing else same
configuration, same Hardware, same Kernel (however i didn''t check with
particular revision).

Why problem exist, it could be GCC and Make new version??? or ???

Thanks
-tej




>
> -- Pasi
>
>
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

On Sun, Nov 08, 2009 at 05:48:58PM +0530, Tej wrote:
> On Sun, Nov 8, 2009 at 5:07 PM, Pasi Kärkkäinen <pasik@iki.fi> wrote:
> > On Sun, Nov 08, 2009 at 11:14:40AM +0530, Tej wrote:
> >> All,
> >>
> >> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
> >> 2.6.18.8 tree on new ubuntyu karmic koala.
> >> I have tried this combination on different machine AMD64, intel
i386,
> >> but every time I boot process is stop at
> >>
> >> "Waiting for root file system" , After some time the
promt drops to
> >> initramfs shell.
> >
> > Well.. it either means the driver for your SATA controller is not
> > loaded, the driver is misbehaving or the driver is too old to actually
> > support the controller.
> 
> Fine.
> 
> >
> >> I am sure the problem is not due to NOT selecting prooper SATA
> >> controller or something ike that.....
> >>
> >
> > You should enable/configure serial console and capture the full xen
and
> > dom0 kernel boot logs so we can see what''s wrong..
> 
> I will try get boot logs ASAP, however i guess netconsole is a better
option.
> 
Netconsole cannot capture Xen hypervisor boot messages.. since it''s
only
activated later when dom0 Linux kernel is loaded.
> >
> > that''s the easiest way to troubleshoot the problem.
> >
> >> I have tried similar hardware configuration with Xen on Jaunty it
> >> works without any problem.
> >> I am just wondering why it is refusing to work on Karmic, possible
reasons.
> >> 1. gcc 4.4
> >> 2. make version
> >> 3. your thoughts please????
> >>
> >> I have tried pvops kernel, it works but I need 2.6.18.8 tree so
any thoughts???
> >>
> >
> > Any particular reason for that?
> >
> > Have you considered the novell/opensuse forward-ported 2.6.18 patches
for 2.6.3x?
> >
> > http://wiki.xensource.com/xenwiki/XenDom0Kernels
> 
> Ok, I think I am not clearly spelling out the problem.
> 
> 1. Xen with Linux 2.6.18.8 on AMD64 hardware. OS: Ubuntu Jaunty.
> Everything is working fine.
> 2. Xen with Linux 2.6.18.8 on *Same* AMD64 hardware. OS: Ubuntu
> Karmic. Boot process fails with error Waiting for filesystem
> 
> 
> Difference between 1 and 2 are *only* OS. Nothing else same
> configuration, same Hardware, same Kernel (however i didn''t check
with
> particular revision).
> 
> Why problem exist, it could be GCC and Make new version??? or ???
> 
Ok. 

Maybe it''s the different revision of dom0 kernel then? gcc/make
_shouldn''t_ make any difference.. unless there are some compiler
specific bugs.

-- Pasi


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Sun, Nov 08, 2009 at 04:45:30PM +0530, Tej wrote:
> On Sun, Nov 8, 2009 at 4:17 PM, Simon Horman <horms@verge.net.au>
wrote:
> > On Sun, Nov 08, 2009 at 11:14:40AM +0530, Tej wrote:
> >> All,
> >>
> >> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
> >> 2.6.18.8 tree on new ubuntyu karmic koala.
> >> I have tried this combination on different machine AMD64, intel
i386,
> >> but every time I boot process is stop at
> >>
> >> "Waiting for root file system" , After some time the
promt drops to
> >> initramfs shell.
> >> I am sure the problem is not due to NOT selecting prooper SATA
> >> controller or something ike that.....
> >>
> >> I have tried similar hardware configuration with Xen on Jaunty it
> >> works without any problem.
> >> I am just wondering why it is refusing to work on Karmic, possible
reasons.
> >> 1. gcc 4.4
> >> 2. make version
> >> 3. your thoughts please????
> >>
> >> I have tried pvops kernel, it works but I need 2.6.18.8 tree so
any thoughts???
> >
> > It sounds a lot like the correct modules aren''t being loaded
up for
> > 2.8.18.8 by the initramfs (that was presumably created while
> > running a much newer kernel). When you drop into the initramfs shell
> > can you see the root device?
> 
> Thats the issue, boot process tries to detect root filesystem, but it
> can''t. Some reasons for this I know are:
> 1. Storage controllers are not in kernel and initramfs
> 2. Pointing wront root device
So the root device (e.g. /dev/sda1) exists when you get dumped
into the initramfs but it isn''t being mounted by the kernel?
> I could say that both of the problem does not exist.
> Now question why configuration worked on jaunty and why not in karmic??
Possibly because the name of the relevant modules and/or the root device
has changed?


_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Just to be sure... Are you using GRUB instead the new GRUB2... right?!

If you try to boot Xen with GRUB2, you will need to compile your kernel with
built-in command line "hard coded" into your Linux kernel image.

2009/11/8 Tej <bewith.tej@gmail.com>
> All,
>
> Recently I have tried Xen 3.4.1 (even xen-unstable.hg) and Linux
> 2.6.18.8 tree on new ubuntyu karmic koala.
> I have tried this combination on different machine AMD64, intel i386,
> but every time I boot process is stop at
>
> "Waiting for root file system" , After some time the promt drops
to
> initramfs shell.
> I am sure the problem is not due to NOT selecting prooper SATA
> controller or something ike that.....
>
> I have tried similar hardware configuration with Xen on Jaunty it
> works without any problem.
> I am just wondering why it is refusing to work on Karmic, possible reasons.
> 1. gcc 4.4
> 2. make version
> 3. your thoughts please????
>
> I have tried pvops kernel, it works but I need 2.6.18.8 tree so any
> thoughts???
>
>
>
> thanks
> -tej
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users