Re: [Xen-devel] Help with the migration to XEN-4.1 please

[Flavio <fbcyborg@xxxxxxxxx>]

On 14 September 2011 16:09, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> On Wed, 2011-09-14 at 10:05 -0400, Flavio wrote:
>
>> xen be core: xen be core: can't open gnttab device
>> can't open gnttab device
>
> This is probably the issue. You need /dev/xen/gntdev, I think you need
> to enable CONFIG_XEN_GNTDEV.
YESSSSSSSSSSSSS!
Actually it was compiled as module but it wasn't running.
Also the xen-gntalloc module is present but it is not running.
Now, simply modprobing the xen-gntdev module, the vm has started, and
the console is available!
Only one problem now: the guest machine doesn't get any IP when dhcp runs.

>
>> > The file:/mnt/data/xen/vmstore/gentoo-10.0/gentoo-10.0.x86-64.img (and
>> > the other one) is interesting.
>> As you see I use loop files for the root filesystems.
>
> That's the thing -- you aren't, you are using img files.
It was my mistake! I thought they were loop files too.

> Under xend
> these would be setup as loop devices for you but under xl you insteasd
> get a userspace block backend (tap if it is available, qdisk from
> qemu-d, if not).
OK, now I understand.

THANK YOU SO MUCH Ian.

-- 
Flavio

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