Xen users - Aug 2005 - boot cd

I like build a boot cd to define the boot kernel. Does anyone know how to build
it?

If i''m using syslinux i have to build an isolinux.cfg file such as:

default xen
 
# xen server
label xen
  kernel xen.gz dom0_mem=131072
  append module=/boot/vmlinuz-2.6.8-24.16-xen root=/dev/sda2
  append module=/boot/initrd-2.6.8-24.16-xen

...but it don''t work so.
It thinks xen.gz is a invalid boot kernel. even if i exctract the gzip image it
won''t work.

Do you have any ideas?

Thanks
Stephan

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>   kernel xen.gz dom0_mem=131072
> It thinks xen.gz is a invalid boot kernel. even if i exctract the gzip
> image it won''t work.
Maybe you should put /xen.gz or /boot/xen.gz, or maybe you need to
specify the partition to load from. You might like to look at the Xen
demo CD, which uses ISOLINUX and GRUB, as an example.

-- 
Though  I''m deep  inside a storm  it won''t  defeat  me, 
Floating  free.
Look out  here comes trouble,  Maybe I''m  just pushing through  a
dream,
But strange how things feel quite real to me.  http://surreal.istic.org/
That which will guide the lost child back to her mother''s arms...
EXILE.


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Hi Stephan,

On Mon, Aug 29, 2005 at 02:35:22PM +0200, Stephan B?ni
wrote:
> If i''m using syslinux i have to build an isolinux.cfg file such
as:
> 
> default xen
>  
> # xen server
> label xen
>   kernel xen.gz dom0_mem=131072
>   append module=/boot/vmlinuz-2.6.8-24.16-xen root=/dev/sda2
>   append module=/boot/initrd-2.6.8-24.16-xen
> 
> ...but it don''t work so.
ISOLINUX can''t boot Xen directly -- the error message you''re
getting is
because it''s trying to boot xen.gz as a linux kernel.  There''s
a
module, mboot.c32, which ships with more recent versions of syslinux
and will let you boot Xen with a config file something like:

LABEL Xen
  KERNEL /boot/mboot.c32 
  APPEND /boot/xen.gz dom0_mem=131072 --- /boot/vmlinuz-2.6.8-24.16-xen
root=/dev/sda2 --- /boot/initrd-2.6.8-24.16-xen

Have a look at com32/modules/mboot.doc in a recent syslinux tarball for
more details. 

Grub is able to boot Xen directly; see the Xen user manual for details
of what to put in menu.lst and the GRUB docs for how to make a CD:
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html
http://www.gnu.org/software/grub/manual/html_node/

Tim.

-- 
Tim Deegan                           (My opinions, not the
University''s)
Systems Research Group
University of Cambridge Computer Laboratory

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