Comment 42 for bug 48556

I got around this problem by installing from the ubuntu livecd, then using the livecd from another distribution (for which the hard drive was recognized) to install a custom-compiled kernel (2.6.17.6 if anyone is interested).

It worked great for me. Though I will be excited when I can use a stock ubuntu kernel.

Also using unbranded intel 82801G (ICH7 Family)

Hope this helps anyone.