[jzb]

From Fedora CoreOS docs: “ When an update is complete, the previous OS deployment remains on disk. If an update causes issues, you can use it as a fallback.”

IIRC RHEL now has tooling for automatic rebooting into the old version when checks are failed. Not sure how hard that is to do with Fedora CoreOS.

Guess I’m not sure what functions are missing in these implementations that would cause you to lose sleep.

[yencabulator]

With A/B-partitions, you can't really end up with a corrupt root filesystem. With OSTree, you can.

(Of course, you can lose the data partition.)

[brancz]

It’s the same in spirit, but I just find the A/B partitions easier to reason about. To me it’s about minimizing factors.