Write your own Operating System sample code for the video Write your own Operating System Setup vagrant up to start Linux Mint for dev in the Linux Mint started above, do: cd ~/workspace/write-your-own-operating-system/src && sudo make mykernel.iso start virtualbox to create vm manually Name: My Operating System (specified in the Makefile) Type: Other Version: Other/Unknown Hard drive: Do not add a virtual hard drive Select start-up disk: ~/workspace/write-your-own-operating-system/src/mykernel.iso then sudo make run to run your os