Re: [Xen-devel] Re: [Xen-tools] Unable to start xend

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Mar 31, 2010 at 08:12:27PM +0530, Onkar Mahajan wrote:
>    On Wed, Mar 31, 2010 at 7:49 PM, Konrad Rzeszutek Wilk
>    <[1]konrad.wilk@xxxxxxxxxx> wrote:
> 
>      On Wed, Mar 31, 2010 at 12:45:02PM +0530, Onkar Mahajan wrote:
>      > Please confirm if I am right :
>      >
> 
>      Aaah, you are using GRUB2, not GRUB!
>      > #!/bin/sh
>      >
>      > cat << EOF
>      > menuentry "Xen 3.5 / Ubuntu, 2.6.31.6-xen1" {
>      >     insmod ext2
>      >     set root=(hd0,1)
>      >     multiboot /boot/xen-3.5.gz <- This is the Xen VMM proper ???
> 
>      Yup
>      >     module /boot/vmlinuz-2.6.31.6-xen1 dummy=dummy dom0_mem=1024M
>      > root=/dev/sda1 ro <- This is linux kernel with pvops right ???
> 
>      Yup. I would suggest you add 'console=hvc0' so you can see the output.
>      >     module /boot/initrd.img-2.6.31.6-xen1
>      > }
>      >
>      > EOF
>      >
>      > so in my case , I have compiled Linux kernel containing pvops ; Now ,
>      I also
>      > need Xen VMM ?? right ??
> 
>      Yes. But from your /boot/grub/menu.lst it looks that you do have the
>      xen-3.5.gz compiled?
> 
>    No , this is just the copy-paste from
>    
> [2]http://virtually-a-machine.blogspot.com/2009/12/experimental-xen-and-ubuntu-part-2.html
>    I don't have the xen-3.5.gz  compiled . (just for my understanding )
>    Neither do i know how to compile it
>    for the pvops kernel (2.6.31.6) that I am using.
>    Can you shed some light as to how I can generate the xen.gz image , Please
>    note that
>    I have CONFIG_XEN_DOM0=y set in my .config file.
>    I have attached the .config and menu.lst file for your reference.
> 
>    What is the significance of   CONFIG_XEN_DOM0=y ? 

It'll make the kernel to be able to run as Xen Dom0.

> does is generate dom0 image as well ? If yes where ??
> 

xen.gz is Xen hypervisor, and it's totally separate piece of software.
Xen hypervisor is not included in the Linux kernel, it's a separate download
from xen.org.

Xen hypervisor 4.0.0-rc9 is available from this mercurial repository:
http://xenbits.xen.org/xen-4.0-testing.hg

-- Pasi


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