To build a Xen kernel (whether for the host or for the guest systems), use these instructions:
Getting Xen from the Debian repository
We now recommend that you use the Debian kernel if you are using Lenny. In that case, you should do:
On i386 machines:
apt-get install xen-linux-system-2.6.26-2-xen-686 libc6-xen xen-utils-3.2-1 xen-utils-common bridge-utils iproute bcc bin86
On 64 bits systems:
apt-get install xen-linux-system-2.6.26-2-xen-686 libc6-xen xen-utils-3.2-1 xen-utils-common bridge-utils iproute bcc bin86
On both system types, we recommend you to also do:
apt-get install make gcc libc6-dev zlib1g python python-twisted libcurl3 libcurl3 bzip2 module-init-tools transfig tgif libncurses5 patch libvncserver-dev libsdl-dev libjpeg62-dev bcc bin86 gawk pciutils-dev texinfo
You'll have to make a symlink to the python lib, as the Debian xen kernel doesn't provide it. A bug has been sent to the maintainer of the package, but he doesn't seem to care, unfortunately. Anyway, here's how:
ln -s /etc/alternatives/xen-default /usr/lib/xen
ln -s /usr/lib/xen-default/lib/python/xen /usr/lib/python2.5/site-packages/xen
Edit /boot/grub/menu.lst -- and set the first option to be something like this:
kernel /boot/xen-3.2.1.gz dom0_mem=393216
The only thing that you need to modify is the dom0_mem. You might need to change this each time you install or upgrade a new kernel. Then you will also need to change a bit your /etc/xen/xend-config.sxp:
# Have the VNC listen on all interfaces
sed -i "s/#(vnc-listen '127.0.0.1')/(vnc-listen '0.0.0.0')/" /etc/xen/xend-config.sxp
# Set a default pass
gen_pass=`dd if=/dev/random bs=64 count=1 2>|/dev/null | md5sum | cut -d' ' -f1 | awk '{print substr($0,0,8)}'`
sed -i "s/(vncpasswd '')/(vncpasswd '${gen_pass}')/" /etc/xen/xend-config.sxp
# Increase the default dom0 min mem
sed -i "s/(dom0-min-mem 196)/(dom0-min-mem 384)/" /etc/xen/xend-config.sxp
# Set network-bridge and add anti-spoof to Xend
sed -i "s/(network-script network-dummy)/(network-script 'network-bridge antispoof=yes')/" /etc/xen/xend-config.sxp
and tweak a bit more your system:
echo "root: youremail@example.com" >>/etc/aliases
newaliases
/etc/init.d/postfix reload
mkdir /etc/xen/auto
That's about it for the Xen system part. If you wish to do everything from source, you can use the following, but it's quite outdated now:
Building Xen yourself
Once all this is done, you can proceed to add DTC-Xen to be able to connect to your dom0 from a DTC panel.
