Issues trying to use LVM logical volumes with Xen 4.5, NetBSD 7.0_RC3 dom0 and domU

[Adrian Christiansen <adrian.christiansen%gmail.com@localhost>]

Hi guys!,

I can get the INSTALL kernel to boot, I can use files as the disk, but
I can't seem to get LVM volumes to work with Xen. I'm using 7.0_RC3
201509221450Z, with Xen 4.5 installed from the 7.0_2015Q2 binary
packages on the nyftp.

There's an error message on the console too:
xbdback backend/vbd/11/0: unknown device 0x70616d2f7665642f
xbdback backend/vbd/11/1: unknown device 0x70616d2f7665642f
xbdback backend/vbd/11/2: unknown device 0x70616d2f7665642f

This is the config file for the domU:

# -*- mode: python; -*-

kernel = "/xen/wilhelm/netbsd-INSTALL_XEN3_DOMU.gz"
memory = 128
name = "wilhelm"
vif = [ 'mac=aa:00:00:d1:00:09,bridge=bridge0' ]
disk = [ 'phy:/dev/vg0/lv0,hda,w',
'phy:/dev/vg1/lv1,hdb, w',
'phy:/dev/vg1/lv0,hdc, w' ]

LVM is running, even made newfs on the logical volumes, mounted them
and unpacked the installations sets. xenbackendd is not running, as
one thread talked about.

I've been searching trying to find an answer, but can't make heads or
tails of this... anyway, I'm stuck.

Thankful for any help!,
Adrian.