Ubuntu Mac USB

Running Ubuntu Using USB Flash Drive

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 ~/IMAGENAME ~/UBUNTUVERSIONNAME.iso

Specific example:

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

Insert then Unmount USB Flash Drive

Put your USB Flash Drive into the USB port of your Mac (usually at the sides of the mac)(flip the USB flash drive if not fitting)

List the disks connected to your devices. Determine the device node assigned to your flash media (e.g. /dev/disk2)

diskutil list

Unmount your USB flash drive disk by inputting this code:

diskutil unmountDisk /dev/diskN

(replace N with the disk number from the last command; in the previous example, N would be 2)

Process and Transfer Ubuntu disk image onto USB flash drive

Specific example:

sudo dd if=/Users/graham/graham.dmg of=/dev/disk2 bs=1m

This step requires patience, as it takes a long time. Wait for Terminal to respond.

Eject USB Flash Drive

Type:

diskutil eject /dev/diskN

Replace "N" with your disk number.

Remove USB Flash Drive

Restart your Mac

Hold alt/option key while rebooting.