No RAID possible on ubuntu desktop install?

[oxy]

>hey Gökhan, i know what u mean. I've used the text based installer already,
>but following your link i got an iso which does exactly the same as the
>standard one (despite explicitly announced as text based).
>(link: http://gb.releases.ubuntu.com/12.04/ubuntu-12.04-desktop-amd64.iso)

got it. The mirror given by ubu web page hat the wrong iso file ...
Just tryied a different one ...

thx guys...