A target device operating on a first operating system can receive an incremental update for a second operating system and store in a first data set a snapshot of the second the second operating system based on the incremental update. The target device may then export an image of the second operating system to a second data set and boot into the second image. The target device may receive operating system updates, build operating system images in the background, and boot into the updated operating system when the process is complete. Storing snapshots of the incremental updates and previous operating system images allows for reversion to old operating systems.