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38 .Nd promote clone dataset to no longer depend on origin snapshot
47 command makes it possible to destroy the dataset that the clone was created
49 The clone parent-child dependency relationship is reversed, so that the origin
50 dataset becomes a clone of the specified dataset.
52 The snapshot that was cloned, and any snapshots previous to this snapshot, are
53 now owned by the promoted clone.
54 The space they use moves from the origin dataset to the promoted clone, so
55 enough space must be available to accommodate these snapshots.
56 No new space is consumed by this operation, but the space accounting is
58 The promoted clone must not have any conflicting snapshot names of its own.
61 subcommand can be used to rename any conflicting snapshots.
64 .\" These are, respectively, examples 10 from zfs.8
65 .\" Make sure to update them bidirectionally
66 .Ss Example 1 : No Promoting a ZFS Clone
67 The following commands illustrate how to test out changes to a file system, and
68 then replace the original file system with the changed one, using clones, clone
69 promotion, and renaming:
70 .Bd -literal -compact -offset Ds
71 .No # Nm zfs Cm create Ar pool/project/production
72 populate /pool/project/production with data
73 .No # Nm zfs Cm snapshot Ar pool/project/production Ns @ Ns Ar today
74 .No # Nm zfs Cm clone Ar pool/project/production@today pool/project/beta
75 make changes to /pool/project/beta and test them
76 .No # Nm zfs Cm promote Ar pool/project/beta
77 .No # Nm zfs Cm rename Ar pool/project/production pool/project/legacy
78 .No # Nm zfs Cm rename Ar pool/project/beta pool/project/production
79 once the legacy version is no longer needed, it can be destroyed
80 .No # Nm zfs Cm destroy Ar pool/project/legacy