my cloud

1. Eucalyptus http://open.eucalyptus.com/wiki/EucalyptusInstallationUbuntuJaunty_v1.6
2. xen http://wells.osall.com/blog/index.php?uid=1&m=content&p=1434#article_content.php%3Fid%3D1434%26uid%3D1%26dt%3DY:pane:N;
3. kvm http://www.howtoforge.com/virtualization-with-kvm-on-ubuntu-9.04

make xen undefined reference to `__udivdi3' ; Makefile -fno-strict-aliasing \
-fno-tree-scev-cprop

finally this works:

http://mulps.wordpress.com/2009/05/31/install-xen-kernel-on-ubuntu-9-04-jaunty-i386/

wget http://ftp.debian.org/debian/pool/main/l/linux-2.6/linux-modules-2.6.26-2-xen-686_2.6.26-24_i386.deb
wget http://ftp.debian.org/debian/pool/main/l/linux-2.6/linux-image-2.6.26-2-xen-686_2.6.26-24_i386.deb
sudo dpkg -i linux-modules-2.6.26-2-xen-686_2.6.26-24_i386.deb
sudo dpkg -i linux-image-2.6.26-2-xen-686_2.6.26-24_i386.deb