g5 install problem

[Ron Brooks]

Hi, I joined this group hoping for a solution so here's the problem. I
have a Powermac G5 1.6 single processor that I've tried many times to
install Debian. The install goes fine...but on reboot up comes the
black bootstrap screen which asks if I want to boot from the hd or cd.
I choose hd but it just loops until the fan goes crazy and I have to
power it down manually. I've tried the rescue option with no luck. One
thing I forgot...there is no MacosX installed just Debian.  Thanks.