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The Linux VFS will never allow a filesystem which is in use to be unmounted. This behavior differs from other platforms like FreeBSD which allow a filesystem to be force unmounted. This will result in errors being returned to applications actively using the filesystem. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Mariusz Zaborski <oshogbo@vexillium.org> Closes #10013
129 lines
3.6 KiB
Groff
129 lines
3.6 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 February 16, 2019
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.Dt ZFS-MOUNT 8
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.Os Linux
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.Sh NAME
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.Nm zfs Ns Pf - Cm mount
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.Nd Manage mount state of ZFS file systems.
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.Sh SYNOPSIS
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.Nm
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.Cm mount
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.Nm
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.Cm mount
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.Op Fl Oflv
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.Op Fl o Ar options
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.Fl a | Ar filesystem
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.Nm
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.Cm unmount
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.Op Fl fu
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.Fl a | Ar filesystem Ns | Ns Ar mountpoint
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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 mount
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.Xc
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Displays all ZFS file systems currently mounted.
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.It Xo
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.Nm
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.Cm mount
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.Op Fl Oflv
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.Op Fl o Ar options
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.Fl a | Ar filesystem
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.Xc
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Mount ZFS filesystem on a path described by its
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.Sy mountpoint
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property, if the path exists and is empty. If
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.Sy mountpoint
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is set to
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.Em legacy ,
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the filesystem should be instead mounted using
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.Xr mount 8 .
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.Bl -tag -width "-O"
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.It Fl O
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Perform an overlay mount. Allows mounting in non-empty
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.Sy mountpoint .
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See
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.Xr mount 8
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for more information.
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.It Fl a
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Mount all available ZFS file systems.
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Invoked automatically as part of the boot process if configured.
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.It Ar filesystem
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Mount the specified filesystem.
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.It Fl o Ar options
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An optional, comma-separated list of mount options to use temporarily for the
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duration of the mount.
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See the
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.Em Temporary Mount Point Properties
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section of
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.Xr zfsprops 8
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for details.
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.It Fl l
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Load keys for encrypted filesystems as they are being mounted. This is
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equivalent to executing
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.Nm zfs Cm load-key
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on each encryption root before mounting it. Note that if a filesystem has a
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.Sy keylocation
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of
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.Sy prompt
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this will cause the terminal to interactively block after asking for the key.
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.It Fl v
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Report mount progress.
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.It Fl f
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Attempt to force mounting of all filesystems, even those that couldn't normally be mounted (e.g. redacted datasets).
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.El
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.It Xo
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.Nm
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.Cm unmount
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.Op Fl fu
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.Fl a | Ar filesystem Ns | Ns Ar mountpoint
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.Xc
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Unmounts currently mounted ZFS file systems.
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.Bl -tag -width "-a"
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.It Fl a
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Unmount all available ZFS file systems.
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Invoked automatically as part of the shutdown process.
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.It Fl f
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Forcefully unmount the file system, even if it is currently in use.
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This option is not supported on Linux.
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.It Fl u
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Unload keys for any encryption roots unmounted by this command.
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.It Ar filesystem Ns | Ns Ar mountpoint
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Unmount the specified filesystem.
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The command can also be given a path to a ZFS file system mount point on the
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system.
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.El
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.El
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