Re: how to multiboot xen with grub2 on Ubuntu

[Abhishek Dixit]

On Wed, Mar 9, 2011 at 2:53 AM, Abhishek Dixit <address@hidden> wrote:
> On Wed, Mar 9, 2011 at 2:47 AM, Jordan Uggla <address@hidden> wrote:
>>> menuentry "Xen Linux 2.6.32.27" {
>>>       insmod ntfs
>>>       set root='(hd0,2)'
>>>       loopback loop0 /ubuntu/disks/root.disk
>>>       set root=(loop0)
>>>       kernel (hd0,2)/boot/xen.gz
>>>       module (hd0,2)/boot/vmlinuz-2.6.32.27 dummy=dummy
>>> root=/dev/sda2 loop=/ubuntu/disks/root.disk ro console=tty0
>>>       module (hd0,2)/boot/initrd.img-2.6.32.27
>>> }
>>>
>>>
>>> Entry 2 which failed is
>>>
>>> menuentry "Xen Linux 2.6.32.27" {
>>>        insmod multiboot2
>>>        set root='(hd0,2)'
>>>        set root=(loop0)
>>>        kernel (hd0,2)/boot/xen.gz dummy=dummy
>>>        module (hd0,2)/boot/vmlinuz-2.6.32.27 dummy=dummy
>>> root=/dev/sda2 loop=/ubuntu/disks/root.disk ro console=tty0
>>>        module (hd0,2)/boot/initrd.img-2.6.32.27
>>> }
>>
>> Compare these with the entry given in the instructions that you linked to:
>>
>> menuentry "Xen 4 / Ubuntu 10.04 kernel 2.6.32.12" {
>>  insmod ext2
>>  set root='(hd1,5)'
>>  multiboot (hd1,5)/boot/xen.gz dummy=dummy dom0_mem=1024M
>>  module (hd1,5)/boot/vmlinuz-2.6.32.12 dummy=dummy nopat
>> root=/dev/sdb5 ro console=tty0
>>  module (hd1,5)/boot/initrd.img-2.6.32.12
>> }
>>
>> Notice there is no "kernel" command in grub2, you need to use "multiboot".
> Ok
>> Also, since I assume your /boot/ is within your wubi root.disk rather
>> than in "(hd1,5)" you should remove (hd1,5) from your file paths to
>> end up with an entry like:
>>
>> menuentry "Xen Linux 2.6.32.27" {
>>        insmod ntfs
>>        set root='(hd0,2)'
>>        loopback loop0 /ubuntu/disks/root.disk
>>        set root=(loop0)
>>        multiboot /boot/xen.gz
>>        module    /boot/vmlinuz-2.6.32.27 dummy=dummy root=/dev/sda2
>> loop=/ubuntu/disks/root.disk ro console=tty0
>>        module    /boot/initrd.img-2.6.32.27
>> }
>>
>> --
> I tried exactly the above entries which you mentioned on grub prompt
>
> grub>        insmod ntfs
> grub>        set root='(hd0,2)'
> grub>        loopback loop0 /ubuntu/disks/root.disk
> grub>        set root=(loop0)
> Upto here things worked perfectly
> but the moment I did
> grub>        multiboot /boot/xen.gz
>
> I got error
> error: file not found.
> Here what am I missing?
Sorry I mistyped the error
the error was
error: unknown command 'multiboot'

and when I do
grub> insmod multiboot
error:file not found.


-- 
Regards
Abhi