# apt-get install prevu
# DISTRO=hardy prevu-init
# wget https://launchpad.net/ubuntu/hardy/+source/xen-3.3/3.3.0-1ubuntu7~hardy1/+files/xen-3.3_3.3.0-1ubuntu7~hardy1.diff.gz
# wget https://launchpad.net/ubuntu/hardy/+source/xen-3.3/3.3.0-1ubuntu7~hardy1/+files/xen-3.3_3.3.0.orig.tar.gz
# wget https://launchpad.net/ubuntu/hardy/+source/xen-3.3/3.3.0-1ubuntu7~hardy1/+files/xen-3.3_3.3.0-1ubuntu7~hardy1.dsc
Now build :-
# /usr/bin/prevu xen-3.3_3.3.0-1ubuntu7~hardy1.dsc
Build successful, attempt to install :-
root@boris-desktop:/var/cache/prevu/hardy-debs# ./install.sh

(Reading database … 101659 files and directories currently installed.)
Preparing to replace libxen3 3.2.0-0ubuntu10 (using libxen3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb) …
Unpacking replacement libxen3 …
Selecting previously deselected package libxen3-dev.
Unpacking libxen3-dev (from libxen3-dev_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb) …
Selecting previously deselected package python-xen-3.3.
Unpacking python-xen-3.3 (from python-xen-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb) …
Replacing files in old package python-xen-3.2 …
Selecting previously deselected package xen-docs-3.3.
Unpacking xen-docs-3.3 (from xen-docs-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb) …
Selecting previously deselected package xen-hypervisor-3.3.
Unpacking xen-hypervisor-3.3 (from xen-hypervisor-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb) …
Selecting previously deselected package xen-utils-3.3.
dpkg: regarding xen-utils-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb containing xen-utils-3.3:
xen-utils-3.3 conflicts with xen-utils
xen-utils-3.2 provides xen-utils and is installed.
dpkg: error processing xen-utils-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb (–install):
conflicting packages - not installing xen-utils-3.3
Setting up libxen3 (3.3.0-1ubuntu7~hardy1~8.04prevu1) …
Setting up libxen3-dev (3.3.0-1ubuntu7~hardy1~8.04prevu1) …
Setting up python-xen-3.3 (3.3.0-1ubuntu7~hardy1~8.04prevu1) …
Setting up xen-docs-3.3 (3.3.0-1ubuntu7~hardy1~8.04prevu1) …
Setting up xen-hypervisor-3.3 (3.3.0-1ubuntu7~hardy1~8.04prevu1) …
Searching for GRUB installation directory … found: /boot/grub
Searching for default file … found: /boot/grub/default
Testing for an existing GRUB menu.lst file … found: /boot/grub/menu.lst
Searching for splash image … none found, skipping …
Found Xen hypervisor 3.2, kernel: /boot/vmlinuz-2.6.24-21-xen
Found Xen hypervisor 3.3, kernel: /boot/vmlinuz-2.6.24-21-xen
Found kernel: /boot/vmlinuz-2.6.24-19-generic
Found kernel: /boot/memtest86+.bin
Replacing config file /var/run/grub/menu.lst with new version
Updating /boot/grub/menu.lst … done
Processing triggers for libc6 …
ldconfig deferred processing now taking place
Errors were encountered while processing:
xen-utils-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb

I’ve tried to work with old package and force replacement as follows :-
root@boris-desktop:/var/cache/prevu/hardy-debs# dpkg -i –force-all xen-utils-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb
dpkg: regarding xen-utils-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb containing xen-utils-3.3:
xen-utils-3.3 conflicts with xen-utils
xen-utils-3.2 provides xen-utils and is installed.
dpkg: warning - ignoring conflict, may proceed anyway !
dpkg: regarding xen-utils-3.3_3.3.0-1ubuntu7~hardy1~8.04prevu1_amd64.deb containing xen-utils-3.3:
xen-utils-3.2 conflicts with xen-utils
xen-utils-3.3 provides xen-utils and is to be installed.
dpkg: warning - ignoring conflict, may proceed anyway !
. . . .
The result appears to be the same. HVM DomUs during install seems not to have virtual network device
at all , it looks like front end network driver at DomU is broken. Solaris 10 10/08, Intrepid Server have been tested.PV DomUs behave absolutely normal during install and runtime. Intrepid Server PV DomU , utilizing image device created by mentioned HVM install and Solaris Nevada build 101 installed in DHCP mode. Notice , that Intrepid Server PV DomU may be also loaded in DHCP mode ( vif=['bridge=eth0'] ) with no problems.