BIOS Changes to Boot to CD/DVD or USB

Installation – Making BIOS Changes

In this lesson, we’ll discuss how to make the required changes to BIOS to boot to CD/DVD or USB Drives.

While some systems may be set to check for bootable CD/DVD’s or USB’s on boot up, many aren’t.

If you had your CD/DVD or USB device plugged in, but your system booted as normal, ignoring the new image you created, you’ll have to change your BIOS settings to proceed.

BIOS stands for Basic Input/Output System. It’s a set of configuration settings that are read to boot your computer.

It tells the computer how to do things like find and load hard drives, load system devices, and where to check for the bootable operating system.

The specific steps you’ll take (what key to press on boot up to access the BIOS settings, for example), and the way you’ll navigate your BIOS’s menu to get to the settings will vary with manufacturer and motherboard maker.

The basic idea of finding the boot order and modifying it to have your new image recognized, though, carries across all systems.

I’m doing this procedure on a Dell laptop, as you’ll see from the boot screen.

I hit F12 to enter BIOS settings during boot.

If you miss it (it can go fast), just shut down and try again.

After hitting F12, I’m taken to a screen where I could, if I chose to, just select a one time option to boot from CD/DVD.

This option may not be available on your system and doesn’t show you how to boot to USB, so I’ll scroll down to BIOS Setup and enter the more advanced settings available there.

You’ll see that I have an OK looking Graphical User Interface for my BIOS, but that may not be the case for you. You may have to navigate a text based menu with arrow keys and select with your space bar.

After clicking on BIOS Setup, I’m taken into the BIOS Setup screen. I apologize for the resolution. I’m capturing an actual BIOS screen with a video camera.

Under General, I use the arrow key to get down to the Boot Sequence menu item.

I can add a check mark to USB, or CD/DVD here.

Be sure you leave Internal HDD checked along with whichever other item you want selected.

If you uncheck Internal HDD, your system will always want to boot to the USB or CD/DVD.

Here, I click on CD/DVD, and Apply, then Exit. My changes will be saved and the system will reboot, booting to the media I specified first.

You can see, the system boots to the CD/DVD image burned in the previous lesson, and from there, the installation process is the same as it was on VirtualBox.

Next, I show the process for changing BIOS to boot from USB.

It’s the same, but select the USB checkbox.

That’s it! Enjoy your Ubuntu installation.