See post #3 for the link to the mini-iso. I didn't connect any of my machines to the internet since none of the repos that the mini-iso sets up even work. Just skip choosing a repo and you'll end up installing a very minimal base system. Reboot, log in as root, then nano /etc/apt/sources.list and reenable the CDROM. Install sudo. Run visudo and add your user name to the list to have full sudo access. Log out of root and log in with your user name. You then have to somehow get the debian-ports-key package to your new install, and use dkpg to install it. I used internet sharing on my MBP and used scp and just copied it over (after downloading it from the ports repo). See post #8. Once the key is installed, you can then add the ports repos, apt update, and start building your system. I've outlined what and how to do all of this in previous posts in this thread. PPCLuddite's Debian install guide is a huge help as well, although there have been some changes, so some of the packages are either not available or have been depreciated (such as alsa-base, which is no longer needed in conjunction with alsa-utils). If you need to have access to network shares, see post #37 and install the package linked there BEFORE installing gvfs and a file/desktop manager.
For wifi, you'll have to install wget and bzip2, then (once again) download and copy over b43-fwcutter and firmware-b43-installer and install them using dkpg. You can always wget the debs from your install if you can find a link to them. This picture shows why you need to grab the older versions of these packages (the Jessie builds work just fine):
(I need to add 'tibook' to my new hosts file to fix the error above. Oops.)
As you can see, the package versions are different, so there will be dependancy issues if you try to install the broadcom drivers from unstable.
See post #13 for info on how to enable the non-free archive to install firmware-linux-nonfree. This step is a MUST if you want a usable, non-text DE.
See post #50 for a working PowerPC battery indicator for panels.
You're starting completely from scratch here by using this method (although not as 'from scratch' as Gentoo), so it'll take a lot of patience and trial-and-error. If you can wait, Adrian (who largely maintains this port) is putting together new install CD images in the next couple of weeks.
