"first, install using server/alternate cd
boot your cd, choose your language, press F4 and choose "Install a
if you use ubuntu minimal cd, enter 'cli' at boot prompt
if/when asked, choose nothing. nothing at all. not base system. not
minimal. nothing. deselect everything.
after ubuntu installed and restarted to your new installed system.
login as usual.
now we start installing the system. let's the fun begins."