This tutorial explains how to access the Boot Menu on a newer Phoenix-Award system to enable USB boot from a flash memory stick. The system used for this demonstration featured an MSI K8N Neo4 (MS-7125) motherboard. At the time, this system was easily able to boot from any properly setup flash drive or USB hard drive thrown at it.
How to Access and Setup the Boot Menu for USB boot
1. The first step is to insert the bootable USB flash drive into your computer and then reboot.
2. During the system post tap the F11 key (or the key your specific board manufacturer specifies) to get into Boot Menu.
Note: The key used to access your Boot Menu may vary. Some commonly used Boot Menu keys are F2, F10, F11, and ESC
You should now be presented with a boot screen.
3. Use the up/down arrow keys to select the Hard Disk option from the menu and press Enter to accept.
You should now see a menu similar to the one shown below.
4. Use the up/down arrow keys to select your USB Disk from the list and then press enter.
Note: If your USB device is not listed, you may need to set a boot flag on it to mark the partition active so it can be detected as bootable.
5. If you have properly formatted, activated the partition and installed Linux to your USB device, you should be presented with a boot screen.
6. You can now proceed to boot Linux from the USB drive.