Fedora Core 6 Test 1 is available, see announcement at https://www.redhat.com/archives/fedora-announce-list/2006-June/msg00010.html
and a review at http://www.phoronix.com/scan.php?page=article&item=499&num=1
I used the DVD installer, which I downloaded using bittorent, as none of the mirrors seem so carry the PPC DVD iso file. I'm still seeding the file, with a maximum of 5MB/s, so you can grab it, while it's hot.
To start installation I used the following command line after hitting escape at startup:
boot cd images/netboot/ppc32.img
I used manual partitioning and used some pre existing partitions, and hand picked some applications, as 'joe' and 'thunderbird' are not part of the default selection.
Yaboot is installed as boot manager. It's a bit more difficult to start it, as was with Fedora Core 5, as it needs additional parameters to find its configuration file. So, the command to start it from OF is, when / is on /dev/hdb8:
boot hd0:7 boot/yaboot/yaboot conf= hd0:7,/boot/yaboot/yaboot.conf
You need to change this line replacing hd0
with your actual HDD name and 7
with your actual root partition number (OF numbering: Linux partition number minus one). If you have /boot on a separate partition, remove boot from directory names.
For me, the first boot always failed, Fedora hang around at setting up hostname. It seems to work fine for the second and later boots.
If yaboot does not work on your machine, I can help you out with a bootable kernel image, created with the SUSE mkzimage utility.
Disclaimer: never use it on a production machine, but please install it if you are brave enough to deal with crashes and happy to feed bugzilla!