Try this out.
# ls -d /usr/portage/profiles/default-linux/x86/no-nptl/2.4
/usr/portage/profiles/default-linux/x86/no-nptl/2.4
If that works then proceed to this.
Make sure you use the right architecture, the example below is for x86)
# ln -snf /usr/portage/profiles/default-linux/x86/no-nptl/2.4 /etc/make.profile
(List the files in the 2.4 profile)
# ls -FGg /etc/make.profile/
total 12
-rw-r--r-- 1 939 Dec 10 14:06 packages
-rw-r--r-- 1 347 Dec 3 2004 parent
-rw-r--r-- 1 573 Dec 3 2004 virtuals
You can find more detailed instructions here
http://www.gentoo.org/doc/en/handbook/h ... t=1&chap=6
Hope this helps. I did this on a net install and it was fine. I am not sure how much different a LiveCD install is though. Hope it helps.