HowTo - Installing Ubuntu from External Hard Drive

1. Make a separate partition on your external hard drive. Format it to be FAT32.


2. Set the partition as Active (In storage management)

3. Use universal-usb-installer

4. Boot 

5. Choose boot source. Press F12 if you are using ThinkPad Edge laptop.

6. Install Ubuntu

6.1 Manual partition

6.1.1 Choose a free space

6.2.2 Add a partition for /

6.2.3 Add a partition for swap

6.2.4 Add a partition for /home

7. Reboot

8. Set up grub

9. Done!

Error: No grub Menu after Installing Ubuntu

sudo update-grub

If that doesn't solve the problem, run sudo grub-install /dev/sda (if you get an error, replace sda with hda), and then run sudo update-grub


http://askubuntu.com/questions/127666/no-grub-menu-for-11-10-and-12-04lts