Restore UFS snapshot

[Svein Halvor Halvorsen]

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Hello list!

Is it possible to rollback a file system snapshot, i.e. restore the
file system to the state it was in at the time a mksnap_ffs command
was issued?

I know that I can delete an old snapshot, but could I delete the
"current" one (i.e the live fs), keeping the older?


User scenario:

Before a major upgrade (eg. releng->current, portupgrade -a, etc),
it would be nice to mksnap_ffs, and then after the upgrade be able
to either delete the snapshot if all went well, or rollback to the
snapshot.




	Best regards,
	Svein Halvor
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