870fc32fc9
Most subcommands got their own manpages (e.g. create). Some related commands grouped into a single manpage and symlinks created (e.g. set, get, and inherit). I did this when topics were either too short to warrant their own file or so interrelated that a user would want to refer between commands in the same file. Corrected .Sx internal references to .Xr cross refs; lots of .Sx references from when text was all in zfs.8 needed to be changed to .Xr zfs-$SUBCOMMAND 8 cross references. Divided subcommand list in zfs(8) into sections of related functionality. This required writing new descriptions for some commands. Preserved ".Os Linux", `.Os` macro parsing behavior differs between mandoc from the "BSD" mandoc package (available on Ubuntu) and man from Ubuntu's man-db package, which calls groff to format the manpages. Groff handles the `.Os` macro differently and wrongly, defaulting it to "BSD" in `/usr/share/groff/*/tmac/mdoc/doc-common`, instead of getting the default from `uname`. A future set of changes will introduce build-time preprocessing of manpages for platform-specific documentation and can insert the correct operating system name. Added SEE ALSO sections, the newly-divided zfs-*.8 subcommand man pages needed their own SEE ALSO sections pointing to related subcommands and, in some cases, documentation from other packages (e.g. zfs-share.8). Reviewed-by: Matt Ahrens <matt@delphix.com> Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl> Reviewed-by: Sean Eric Fagan <sef@ixsystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ross Williams <ross@ross-williams.net> Closes #9559
82 lines
2.6 KiB
Groff
82 lines
2.6 KiB
Groff
.\"
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.\" CDDL HEADER START
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.\"
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.\" The contents of this file are subject to the terms of the
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.\" Common Development and Distribution License (the "License").
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.\" You may not use this file except in compliance with the License.
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.\"
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.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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.\" or http://www.opensolaris.org/os/licensing.
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.\" See the License for the specific language governing permissions
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.\" and limitations under the License.
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.\"
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.\" When distributing Covered Code, include this CDDL HEADER in each
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.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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.\" If applicable, add the following below this CDDL HEADER, with the
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.\" fields enclosed by brackets "[]" replaced with your own identifying
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.\" information: Portions Copyright [yyyy] [name of copyright owner]
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.\"
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.\" CDDL HEADER END
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.\"
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.\"
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.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
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.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
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.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
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.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
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.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
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.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
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.\" Copyright (c) 2014 Integros [integros.com]
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.\" Copyright 2019 Richard Laager. All rights reserved.
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.\" Copyright 2018 Nexenta Systems, Inc.
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.\" Copyright 2019 Joyent, Inc.
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.\"
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.Dd June 30, 2019
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.Dt ZFS-ROLLBACK 8
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.Os Linux
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.Sh NAME
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.Nm zfs Ns Pf - Cm rollback
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.Nd Roll back the given dataset to a previous snapshot.
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.Sh SYNOPSIS
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.Nm
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.Cm rollback
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.Op Fl Rfr
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.Ar snapshot
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.Sh DESCRIPTION
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.Bl -tag -width ""
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.It Xo
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.Nm
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.Cm rollback
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.Op Fl Rfr
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.Ar snapshot
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.Xc
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When a dataset is rolled back, all data that has changed since the snapshot is
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discarded, and the dataset reverts to the state at the time of the snapshot.
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By default, the command refuses to roll back to a snapshot other than the most
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recent one.
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In order to do so, all intermediate snapshots and bookmarks must be destroyed by
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specifying the
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.Fl r
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option.
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.Pp
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The
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.Fl rR
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options do not recursively destroy the child snapshots of a recursive snapshot.
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Only direct snapshots of the specified filesystem are destroyed by either of
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these options.
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To completely roll back a recursive snapshot, you must rollback the individual
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child snapshots.
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.Bl -tag -width "-R"
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.It Fl R
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Destroy any more recent snapshots and bookmarks, as well as any clones of those
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snapshots.
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.It Fl f
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Used with the
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.Fl R
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option to force an unmount of any clone file systems that are to be destroyed.
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.It Fl r
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Destroy any snapshots and bookmarks more recent than the one specified.
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.El
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.El
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.Sh SEE ALSO
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.Xr zfs-snapshot 8
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