[Nix-dev] NILFS2, NixOS, nixpart and Blivet

[Tim Barbour]

Wout Mertens writes:
 > FWIW, btrfs and ZFS also do non destructive writes, they're Copy on Write.
 > 
 > As a bonus you get unlimited instant snapshots and lots of other wonderful
 > things.
 > 
 > I prefer btrfs as it has more of a desktop focus and feature set as well as
 > being in the kernel, but ZFS is more mature.

I shall probably go back to using btrfs.

One nice property of NILFS is that every write results in a new checkpoint,
which makes it very cheap to check whether a filesystem has been modified
(other than via low-level disk-editing).

Tim
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