[TUHS] inodes, inumbers, and versions

[Larry McVoy via TUHS]

> It wasn???t until later (Berkeley, I think) that someone overhauled the
> filesystem code to assure that things were ordered in a way that never left
> the filesystem in a degenerate state on crashing.

That feature was not in the first UFS in BSD nor was it in SunOS.  Want to
nuke your filesystem?  Untar a tarball and pull power while that was running.
Left a huge mess.

ZFS did something about this.