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.Dd June 30, 2019
.Dt ZFS-ROLLBACK 8
.Os Linux
.Sh NAME
.Nm zfs Ns Pf - Cm rollback
.Nd Roll back the given dataset to a previous snapshot.
.Sh SYNOPSIS
.Nm
.Cm rollback
.Op Fl Rfr
.Ar snapshot
.Sh DESCRIPTION
.Bl -tag -width ""
.It Xo
.Nm
.Cm rollback
.Op Fl Rfr
.Ar snapshot
.Xc
When a dataset is rolled back, all data that has changed since the snapshot is
discarded, and the dataset reverts to the state at the time of the snapshot.
By default, the command refuses to roll back to a snapshot other than the most
recent one.
In order to do so, all intermediate snapshots and bookmarks must be destroyed by
specifying the
.Fl r
option.
.Pp
The
.Fl rR
options do not recursively destroy the child snapshots of a recursive snapshot.
Only direct snapshots of the specified filesystem are destroyed by either of
these options.
To completely roll back a recursive snapshot, you must rollback the individual
child snapshots.
.Bl -tag -width "-R"
.It Fl R
Destroy any more recent snapshots and bookmarks, as well as any clones of those
snapshots.
.It Fl f
Used with the
.Fl R
option to force an unmount of any clone file systems that are to be destroyed.
.It Fl r
Destroy any snapshots and bookmarks more recent than the one specified.
.El
.El
.Sh SEE ALSO
.Xr zfs-snapshot 8