Template:Boot to GRUB Menu

Load GRUB Menu
Install an imaged hard drive.

Start or restart the system.

Just after the manufacturer's splash screen appears a small blinking cursor will appear in the upper left hand corner of the screen.

Quickly press and hold down a Shift key.

After a few moments, the text  should flash and you'll be presented with a menu with options similar to this:

Ubuntu, with Linux 2.6.32-33-generic Ubuntu, with Linux 2.6.32-33-generic (recovery mode) Memory test (memtest86+) Memory test (memtest86+, serial console 115200)

Use the up and down arrows to select your option.