I followed the excellent guide on the library page on how to keep an existing OSX installation. (Have no DVD)

The guide says to use Ubuntu to partition/ slice the disk. But Ubuntu 9.4 does not recognize the file format of the existing partition. (should be HFS+) but it is unkown and therefor cannot slice the disk.

Tried to install some alternative Ubuntu PPC versions - but I couldn't get any of them to launch on live CD.

I use a MacMini 1.5. Anyone knows a working Ubuntu version or any other solution on how to slice up the disk without destroying the OSX installation. I plan to leave some 20-25GB for OSX and the rest for MorphOS.

Help is appriciated. First one helping me is declared AWESOME

Can also be done by booting from OS10.5 (Leopard) DVD.

I recently used http://torvi.atm.tut.fi/ubuntu-dvd/12.04/release/ubuntu-12.04-desktop-powerpc.iso to partition for dual booting with MorphOS. I remember some bits
of the GUI in Gparted was a bit different from the dual boot guide
(I think some alignment gadget was named differently) but it all worked
well in the end.

[ Edited by Leif 13.03.2013 - 21:17 ]

Hmm. I dont have any OSX dvd so that is a dead end.

I actually downloaded 12.04, but the live CD booting failed on my mac mini. Ended up with various hardware complaints in ubuntu and a freezed black image with ubuntu tech talk.

Ubuntu 9.4 booted all the way, but as said initially the file format cannot be recognized in the partition editor.....

puzzled on what to do here....

I took away the journal type in terminal of OSX. This made HFS+ visable in Ubuntu Gparted, but sadly it was still not possible to resize, it seems locked where it is.

The better solution would be to get an OS X dvd - where's your nearest linux club? A somewhat extreme option is to get an external 2.5" IDE to firewire enclosure for your mini's current internal drive and replace the internal drive with a new one for other OSes. Maybe you could get an IDE SSD while you're at it.