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by mst 567 days ago
I like doing similar tricks with zfs snapshots for containers on linux and jails on fBSD.

(this is not intended to start a filesystem argument, I'm doing it with zfs because I already know zfs and it's available on both of the OSen I care about; if you already know btrfs and are only running things that support it, clearly you should use that for the exact same reasons ;)