I coverted the file from ISO to dmg. I tried to step 8 I get this message.
dd: /Desktop/2ubuntu-12.10-desktop-amd64.dmgof=/dev/rdisk1s1: No such file or directory
Over and over again. I try to retrace the the Ubuntu dmg file and I find it on my desktop. What is going on. I am running macbook 6 1 with mountain lion as the OS. I have a flash drive that is 4GB formarted to FAT32