Linux Gridserver, the ubuntu way

First, you need to update your sources.list with theses lines :

deb http://fr.archive.ubuntu.com/ubuntu/ hardy main restricted deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy main restricted deb http://fr.archive.ubuntu.com/ubuntu/ hardy-updates main restricted deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy-updates main restricted deb http://fr.archive.ubuntu.com/ubuntu/ hardy universe deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy universe deb http://fr.archive.ubuntu.com/ubuntu/ hardy-updates universe deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy-updates universe deb http://fr.archive.ubuntu.com/ubuntu/ hardy multiverse deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy multiverse deb http://fr.archive.ubuntu.com/ubuntu/ hardy-updates multiverse deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy-updates multiverse deb http://fr.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

1. deb-src http://fr.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

deb http://archive.canonical.com/ubuntu hardy partner deb-src http://archive.canonical.com/ubuntu hardy partner deb http://security.ubuntu.com/ubuntu hardy-security main restricted deb-src http://security.ubuntu.com/ubuntu hardy-security main restricted deb http://security.ubuntu.com/ubuntu hardy-security universe deb-src http://security.ubuntu.com/ubuntu hardy-security universe deb http://security.ubuntu.com/ubuntu hardy-security multiverse deb-src http://security.ubuntu.com/ubuntu hardy-security multiverse deb http://ppa.launchpad.net/mono-edge/ubuntu/ hardy main universe multiverse restricted

Then, you need to create a file called mono.pkg that contains thoses lines:

libmono-accessibility1.0-cil install libmono-accessibility2.0-cil install libmono-addins0.2-cil install libmono-bytefx0.7.6.1-cil install libmono-bytefx0.7.6.2-cil install libmono-c5-1.0-cil install libmono-cecil0.5-cil install libmono-corlib1.0-cil install libmono-corlib2.0-cil install libmono-corlib2.1-cil install libmono-cscompmgd7.0-cil install libmono-cscompmgd8.0-cil install libmono-data-tds1.0-cil install libmono-data-tds2.0-cil install libmono-dev install libmono-i18n2.0-cil install libmono-microsoft7.0-cil install libmono-microsoft8.0-cil install libmono-mozilla0.1-cil install libmono-mozilla0.2-cil install libmono-peapi1.0-cil install libmono-peapi2.0-cil install libmono-relaxng1.0-cil install libmono-relaxng2.0-cil install libmono-security1.0-cil install libmono-security2.0-cil install libmono-sharpzip0.84-cil install libmono-sharpzip2.84-cil install libmono-sqlite1.0-cil install libmono-sqlite2.0-cil install libmono-system-data1.0-cil install libmono-system-data2.0-cil install libmono-system-messaging1.0-cil install libmono-system-messaging2.0-cil install libmono-system-runtime1.0-cil install libmono-system-runtime2.0-cil install libmono-system-web1.0-cil install libmono-system-web2.0-cil install libmono-system1.0-cil install libmono-system2.0-cil install libmono-system2.1-cil install libmono-winforms1.0-cil install libmono0 install libmono0-dbg install libmono1.0-cil install libmono2.0-cil install mono-1.0-devel install mono-1.0-service install mono-2.0-devel install mono-2.0-service install mono-common install mono-dbg install mono-debugger install mono-gac install mono-gmcs install mono-jit install mono-jit-dbg install mono-mcs install mono-mjs install mono-runtime install mono-smcs install mono-tools-devel install mono-utils install monodoc-base install monodoc-manual install

then let the magic do its job :

sudo dpkg --set-selections < mono.pkg apt-get update && sudo apt-get dselect-upgrade