I am trying to replace the operating system on an old G5 iMac with lubuntu.
I downloaded the lubuntu ISO file and converted it to an img with hdiutil, then used the dd command to move the img onto a flash drive.
I then restarted and held down the option key to get Into the startup manager (or whatever it is called) and the only bootable devise it detected was the main hard drive.
How can I get this to work, or using any other method, put lubuntu on my old iMac (from 2007 ish)