preseed: pkgsel/include linux-image-generic-lts-raring won't create initrd and render system unbootable

[fish]

Hi,

I'm using a preseed file to install precise but like to install the backported raring kernel (linux-image-generic-lts-raring).
This is what I used regarding the package selection (if necessary, I can provide the full preseed file):

    tasksel tasksel/skip-tasks string standard
    tasksel tasksel/first multiselect ubuntu-minimal
    d-i pkgsel/include string linux-image-generic-lts-raring openssh-server lxc-docker
    d-i pkgsel/update-policy select none

After the installer finishes, grub boots the raring kernel (3.8) but panics:

    [ 2.733887] VFS: Cannot open root device "mapper/ubuntu--vg-root"

After booting the old kernel I figured out that there was no initrd. I supposed that running update-initramfs manually would have fixed that problem, but I rather reverted to my old preseed file and installer linux-image-generic-lts-raring manually. This creates an initrd and everything works as expected.

[fish (discordianfish)]

Any update on this?