How To : Install Ubuntu From USB Drive
Ubuntu can be installed in several ways, install in Windows, install it via CD/DVD, install it using an FTP connection, and install Ubuntu from USB drives. Actually, installing Ubuntu from a USB drive has the same concept with the installation from CD/DVD. But the installation process is much faster using a USB drive.
To install Ubuntu from a USB drive you should make your USB drive bootable and your system BIOS must support booting from a USB drive.Perform the following two steps:
1. Make a bootable USB drive.
To create a bootable USB drive, you can do so using the Ubuntu Live CD.Run the Ubuntu Live CD, and then select the menu System-> Administration-> Startup Disk Creator. You can also create it from .iso file.
Select the USB target drive, click Make Startup Disk.
2. Change the BIOS settings and booting via USB drive.
Plug a USB drive before the computer is turned on, then enter the BIOS settings, change the boot priority to USB drives targeted. Restart the computer, and do the installation as usual.