This is great, especially for atomic update and rollback of the OS. I remember a particular painful instance of OS upgrade. I did the yum update command in th

This is great, especially for atomic update and rollback of the OS. I remember a particular painful instance of OS upgrade. I did the yum update command in the login shell and forgot to do it in a screen session. The login shell got killed after a period of inactivity, in the middle of the OS update. Afterward the OS was beyond repair; couldn't roll back or move forward. Had to reinstall. I wished something like silverblue existed back then.