this is obsolete doc -- see http://doc.nethence.com/ instead

Setting up NetBSD/XEN hypervisor and dom0 

Requirements 

Make sure ntp and LVM are enabled, e.g. base rc.conf might look like this, 

sshd=YES 

ntpd=YES 

ntpdate=YES 

raidframe=NO 

wscons=YES 

Setup the XEN dom0 

Proceed, 

echo $PKG_PATH 

pkg_add xenkernel45 

cd / 

cp /usr/pkg/xen45-kernel/xen.gz xen45.gz 

wget "http://ftp.fr.netbsd.org/pub/NetBSD/NetBSD-`uname -r`/amd64/binary/kernel/netbsd-XEN3_DOM0.gz" 

mv netbsd-XEN3_DOM0.gz netbsd-701-XEN3_DOM0.gz 

cp boot.cfg boot.cfg.dist 

vi boot.cfg 

menu=xen45-netbsd701:load /netbsd-701-XEN3_DOM0.gz console=pc;multiboot /xen45.gz 

#dom0_mem=256M 

#dom0_max_vcpus=1 dom0_vcpus_pin 

Setup the XEN daemons 

Proceed, 

echo $PKG_PATH 

pkg_add xentools45 xenvstat 

cd /dev && sh MAKEDEV xen 

cp /usr/pkg/share/examples/rc.d/xendomains /etc/rc.d/ 

cp /usr/pkg/share/examples/rc.d/xencommons /etc/rc.d/ 

cp /usr/pkg/share/examples/rc.d/xen-watchdog /etc/rc.d/ 

cat >> /etc/rc.conf <<EOF 

xenwatchdog=YES 

xencommons=YES 

xendomains=YES 

EOF 

Setup the network bridge, 

cd /etc/ 

cat > ifconfig.bridge0 <<EOF 

create 

!brconfig $int add wm0 up 

EOF 

Eventually setup a few handy aliases and symlinks, 

cd ~/ 

echo "alias xm='xl'" >> .shrc 

. ./.shrc 

cd /etc/ 

ln -s ../usr/pkg/etc/xen 

cd ~/ 

ln -s /etc/xen 

Ready to go 

Reboot, 

  shutdown -r now 

and make sure everything is fine, 

  xl list 

References 

http://www.NetBSD.org/ports/xen/howto.html 

https://wiki.netbsd.org/tutorials/how_to_set_up_a_guest_os_using_xen3/