To be clear. It actually can't be done with Disk Utility in the way the current Ubuntu instructions describe. So every El Capitan user will be scrabbling around hitting the same problem if the instructions are not updated. I realise you want to keep things simple but .... "If you're using El Capitan" link could save a lot of peoples' time.
To be clear. It actually can't be done with Disk Utility in the way the current Ubuntu instructions describe. So every El Capitan user will be scrabbling around hitting the same problem if the instructions are not updated. I realise you want to keep things simple but .... "If you're using El Capitan" link could save a lot of peoples' time.
All the best!