Creating a Bootable USB flash drive to Boot DOS from USB can be complicated. However, a tool called Rufus or (Reliable USB Format Utility) created by Pete Batard, can make this task relatively simple. This utility can also be used to create a Bootable USB of a given distro from an ISO or image file. When first introduced, the software was similar in appearance and operation to the HP USB Format tool “HPUSBFW.exe”, and shared many of the same features. However, unlike the HP format tool, this app is, and always was Open Source.
NOTE: This post was originally written in 2011. Rufus has since evolved into a tool that can be used to format, create master boot records, and install an ISO or an Image based distribution to USB. It now works much like the Universal USB Installer (UUI) which preceded it. Though both of those tools can only be used to run one Live distribution from a USB flash drive at a time. Unlike USB Boot tools such as YUMI (Multiboot USB Creator), which allow for storing and booting multiple ISO files from one USB flash drive.
How to Boot DOS from USB using Rufus
How to Create a DOS Bootable USB Flash Drive that can be used to Run DOS from USB.
Authors Website: Pete’s Project Page
- Download and launch the program.
- (1) Select your USB Flash Drive from the Device drop down.
(2) Choose the FreeDOS option under Boot selection.
(3) Press START to Create a DOS bootable USB.
- Restart your PC, set your system BIOS to boot from the USB device, reboot and enjoy!