There's plenty of add'l howtos for cross bootstrapping Linux on the LFS site with everything step-by-step and with patches:<p>Here's the PPC (might be big endian-mode):<p><a href="http://www.clfs.org/view/CLFS-3.0.0-SYSTEMD/ppc/" rel="nofollow">http://www.clfs.org/view/CLFS-3.0.0-SYSTEMD/ppc/</a>
I'd be curious to have some benchmarks to see how Power compares to X86.<p>According to IBM their architecture is miles ahead Intel, but there's never a real world bench to prove it's not just marketing.