1.\" SPDX-License-Identifier: CDDL-1.0 2.\" 3.\" CDDL HEADER START 4.\" 5.\" The contents of this file are subject to the terms of the 6.\" Common Development and Distribution License (the "License"). 7.\" You may not use this file except in compliance with the License. 8.\" 9.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10.\" or https://opensource.org/licenses/CDDL-1.0. 11.\" See the License for the specific language governing permissions 12.\" and limitations under the License. 13.\" 14.\" When distributing Covered Code, include this CDDL HEADER in each 15.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16.\" If applicable, add the following below this CDDL HEADER, with the 17.\" fields enclosed by brackets "[]" replaced with your own identifying 18.\" information: Portions Copyright [yyyy] [name of copyright owner] 19.\" 20.\" CDDL HEADER END 21.\" 22.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved. 23.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org> 24.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved. 25.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 26.\" Copyright (c) 2014, Joyent, Inc. All rights reserved. 27.\" Copyright (c) 2014 by Adam Stevko. All rights reserved. 28.\" Copyright (c) 2014 Integros [integros.com] 29.\" Copyright 2019 Richard Laager. All rights reserved. 30.\" Copyright 2018 Nexenta Systems, Inc. 31.\" Copyright 2019 Joyent, Inc. 32.\" 33.Dd March 16, 2022 34.Dt ZFS-ROLLBACK 8 35.Os 36. 37.Sh NAME 38.Nm zfs-rollback 39.Nd roll ZFS dataset back to snapshot 40.Sh SYNOPSIS 41.Nm zfs 42.Cm rollback 43.Op Fl Rfr 44.Ar snapshot 45. 46.Sh DESCRIPTION 47When a dataset is rolled back, all data that has changed since the snapshot is 48discarded, and the dataset reverts to the state at the time of the snapshot. 49By default, the command refuses to roll back to a snapshot other than the most 50recent one. 51In order to do so, all intermediate snapshots and bookmarks must be destroyed by 52specifying the 53.Fl r 54option. 55.Pp 56The 57.Fl rR 58options do not recursively destroy the child snapshots of a recursive snapshot. 59Only direct snapshots of the specified filesystem are destroyed by either of 60these options. 61To completely roll back a recursive snapshot, you must roll back the individual 62child snapshots. 63.Bl -tag -width "-R" 64.It Fl R 65Destroy any more recent snapshots and bookmarks, as well as any clones of those 66snapshots. 67.It Fl f 68Used with the 69.Fl R 70option to force an unmount of any clone file systems that are to be destroyed. 71.It Fl r 72Destroy any snapshots and bookmarks more recent than the one specified. 73.El 74. 75.Sh EXAMPLES 76.\" These are, respectively, examples 8 from zfs.8 77.\" Make sure to update them bidirectionally 78.Ss Example 8 : No Rolling Back a ZFS File System 79The following command reverts the contents of 80.Ar pool/home/anne 81to the snapshot named 82.Ar yesterday , 83deleting all intermediate snapshots: 84.Dl # Nm zfs Cm rollback Fl r Ar pool/home/anne Ns @ Ns Ar yesterday 85. 86.Sh SEE ALSO 87.Xr zfs-snapshot 8 88