I just finished installing Arch on my Powerbook G4 when during boot it hangs trying to boot off of a root partition via NFS. I set my root partition as /dev/sda4 during the install process and didn't configure anything for a remote root partition. The error that I get is:
Root-NFS: no NFS server address VFS: Unabled to mount root fs via NFS, trying floppy. VFS: Insert root floppy and press ENTER
When I press the enter button nothing happens, I followed the installation guide on the Arch wiki Install Arch Linux PPC, I had to use the older method because the newer /arch/setup failed to see me hard drive even though mac-fdisk could see it.