I picked up another IBM XT 286 (5162) and it came with DOS 3.30. While that's a fine OS, I've decided to upgrade it to something a (little) newer: DOS 5.0! Here's the process.
Music used in the video:
"Tranquility Base" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/