Re: [Xen-devel] Fwd: 3.0.2 domu files not working on 3.0.3

[jdsw <jdsw2002@xxxxxxxxx>]

My machine has PAE and xen with PAE.

I got the domU kernel and ramdisk from one of the fedora mirror from under the xen directory.  From the xend-debug.log it seems you may be right, these may not be PAE kernels.

example site :
 ftp://mirror.eas.muohio.edu/fedora/linux/core/5/i386/os/images/xen/
 
 The errors in the debug file
 xend-debug.log
  ERROR: Unrecognized image format
  ERROR: Error constructing guest OS
  ERROR: Unrecognized image format
  ERROR: Error constructing guest OS
  
1. how do I determine, if the kernel is PAE enabled or not. 
a. when the system is running 
b. when I just have the kernel files as in this case ? 

I tried the kernel from /boot/vmlinuz-2.6-xen  (as this is supposed to work with domU and Dom0 both right ?)  I used the old initrd.
The error 22, Invalid argument is gone...and the domU starts  but it  crashes. (probably because of the mismatched initrd
 ?)

2. Where do I get PAE enabled Xen kernels where I can possibly kick of installation similar to bare metal ?
 
When I tried the following... 
http://www.xensource.com/download/dl_303guest_rhel4.html

#rpm -i kernel-xenU-2.6.9-42.0.2.EL.xs148.i686.rpm
error: Failed dependencies:
        kernel < 2.6.13 conflicts with kudzu-1.2.34.3-1.i386
        kernel < 2.6.12 conflicts with initscripts-8.31.5-1.i386
        kernel < 2.6.15 conflicts with hal-0.5.7.1-2.fc5.i386

#uname -a 
Linux test 2.6.16.29-xen #4 SMP Sun Oct 15 13:20:46 BST 2006 i686 athlon i386 GNU/Linux

What are my options ? Any pointers ?

Thanks
/Jd

"Daniel P. Berrange" <berrange@xxxxxxxxxx> wrote:

On Thu, Nov 09, 2006 at 10:47:35AM -0800, jdsw wrote:
> any ideas ? (did not get response on xen-users list)
>
> ---------------------------------
> Access over 1 million songs - Yahoo! Music Unlimited.
> Date: Wed, 8 Nov 2006 07:43:47 -0800 (PST)
> From: jdsw
> Subject: 3.0.2 domu files not working on 3.0.3
> To: XenUsers
>
> Hi
> I have the following file, which is not working on 3.0.3. I am on a HVM capable machine with xen 3.0.3 installed.
> It fails with
>
> Using config file "/etc/xen/T1".
> Error: (22, 'Invalid argument')

This typically means the kernel being used for the guest is incompatible
with the hypervisor or Dom0 kernel. Common causes being PAE vs non-PAE
mismatch, or wrong archtecture, or using a baremetal kernel. The xend.log
or xend-debug.log may give you further details on the precise error.

>
> --------
> ramdisk = '/var/cache/xenman/anaconda_install/initrd.default'
> kernel = '/var/cache/xenman/anaconda_install/vmlinuz.default'
> #vif = ''
> name = 'T1'
>
>
> memory = 256
> disk = ['file:/mnt/images/dom_disks/T1.disk.xm,hda,w']
> -----
> I tried it with vif = "" and vif = [ ''] (similar to xmexample1)
>
> The xend log file is attached.
>
> Any ideas.
> a. I am assuming that on HVM capable machine, u can still run paravirtualized domUs
>
> b. Where can I set of changes in 3.0.3 ? (I remember reading about cdrom directive being changed...)
>

Regards,
Dan.

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