Install Linux on PZI iMacs

PARTITIONING - First step :

Erasing the datastorage partition of 3TB using the following command :
diskutil eraseVolume free Blank /dev/disk0s4 (make sure you double check that this is the correct path by running diskutil list first!)
Because of some troubles with diskutils, most of the steps will have to be postponed until the installation of Debian.

BOOT MANAGER :
Here you can find all the instruction to install rEFInd.
http://www.rodsbooks.com/refind/installing.html#osx

INSTALLATION AND PARTITIONING - Second step :
You may have prepared a bootable USB stick with the Operating System on it.
Plug it in and reboot the computer.
Just launch the Install normally by selecting the pinguin.
As it gets to the partitioning part of the installation, go for manual partitioning and set up the following partitions ;
- 500Go for datastorage, unmounted
- 10Go [SWAP]
- 2.3 TB /home
- 50 GB /

Audio

To get the audio working -- although it's still quite buggy: as root: - nano /lib/modprobe.d/aliases.conf - after the 'options' add a new line with: "options snd-hda-intel model=imac27_122" - ctrl-x , save: yes. - reboot

WiFi

See http://unix.stackexchange.com/a/175813 It seems the non-free WL driver should work