Ubuntu Mac

Ubuntu's Instructions

https://help.ubuntu.com/community/How%20to%20install%20Ubuntu%20on%20MacBook%20using%20USB%20Stick

Get the .ISO

Ubuntu 12.04 LTS 32 bit

http://www.ubuntu.com/download/desktop

Convert the .ISO

Convert the .iso file to .dmg using the convert option of hdiutil

In Terminal, type (OS X tends to put the .dmg ending on the output file automatically):

sudo hdiutil convert -format UDRW -o ~/path/to/target ~/path/to/ubuntu.iso

General example:

YOURNAME-MacBook-Pro:~ USERNAME$ sudo hdiutil convert -format UDRW -o ~/ ~/UBUNTUVERSIONNAME.iso

Specific example:

Graham-Robertsons-MacBook-Pro:~ graham$ sudo hdiutil convert -format UDRW -o ~/ ~/ubuntu-10.04.2-desktop-i386.iso