Re: [Xen-users] No swap on domU

[Dustin Black <dblack@xxxxxxxxxxx>]

I don't think you can mount a swapfile as a physical disk like that.  You'll need to create a partition structure in the file, and set the partition as swap.

From Dom0:

# losetup -f /dev/xen00/debian5-swap
# fdisk /dev/loop0 (or whatever loop device it creates; check with losetup -a)
(create your swap partition)
# kpartx -av /dev/loop0
# mkswap /dev/mapper/loop0p1
# kpartx -d /dev/loop0
# losetup -d /dev/loop0

Or you can do a lot of this work natively from the DomU OS.

Cheers,
-Dustin

On Thu, Aug 20, 2009 at 5:00 AM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:

On Thu, Aug 20, 2009 at 3:17 PM, Andrey Varsavsky<alex.faq8@xxxxxxxxx> wrote:
> Hi guys.
> DomU config
>
> disk        = [
>                  'phy:/dev/xen00/debian5-base,sda1,w',
>                  'phy:/dev/xen00/debian5-swap,sda2,w',
>              ]
> -----------------------
> mkswap /dev/xen00/debian5-swap
>
> But in domU in booting:
> Activating swap...failed.

What is your domU fstab like? does it say swap on sda2?
Or perhaps you use newer kernels, which silently convert the disk to xvda2?

--
Fajar

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users