An operation for filesystem tucking

Posted Apr 1, 2023 12:56 UTC (Sat) by smurf (subscriber, #17840)
In reply to: An operation for filesystem tucking by Karellen
Parent article: An operation for filesystem tucking

With the "mount underneath" method you can simply unmount the top when there are no users. Thus you're guaranteed to have a consistent state at that point.

When mounting on top there probably are open files on the overlaid file system. You now have a mix of open old and unopened new content, which is a surefire recipe for eventual disaster.