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Review updates (to be squashed later)
Signed-off-by: Allan Jude <[email protected]>
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.\" | ||
.\" CDDL HEADER START | ||
.\" | ||
.\" The contents of this file are subject to the terms of the | ||
.\" Common Development and Distribution License (the "License"). | ||
.\" You may not use this file except in compliance with the License. | ||
.\" | ||
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | ||
.\" or http://www.opensolaris.org/os/licensing. | ||
.\" See the License for the specific language governing permissions | ||
.\" and limitations under the License. | ||
.\" | ||
.\" When distributing Covered Code, include this CDDL HEADER in each | ||
.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. | ||
.\" If applicable, add the following below this CDDL HEADER, with the | ||
.\" fields enclosed by brackets "[]" replaced with your own identifying | ||
.\" information: Portions Copyright [yyyy] [name of copyright owner] | ||
.\" | ||
.\" CDDL HEADER END | ||
.\" | ||
.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved. | ||
.\" Copyright 2011 Joshua M. Clulow <[email protected]> | ||
.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved. | ||
.\" Copyright (c) 2011, Pawel Jakub Dawidek <[email protected]> | ||
.\" Copyright (c) 2012, Glen Barber <[email protected]> | ||
.\" Copyright (c) 2012, Bryan Drewery <[email protected]> | ||
.\" Copyright (c) 2013, Steven Hartland <[email protected]> | ||
.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. | ||
.\" Copyright (c) 2014, Joyent, Inc. All rights reserved. | ||
.\" Copyright (c) 2014 by Adam Stevko. All rights reserved. | ||
.\" Copyright (c) 2014 Integros [integros.com] | ||
.\" Copyright (c) 2014, Xin LI <[email protected]> | ||
.\" Copyright (c) 2014-2015, The FreeBSD Foundation, All Rights Reserved. | ||
.\" Copyright (c) 2016 Nexenta Systems, Inc. All Rights Reserved. | ||
.\" Copyright 2019 Richard Laager. All rights reserved. | ||
.\" Copyright 2018 Nexenta Systems, Inc. | ||
.\" Copyright 2019 Joyent, Inc. | ||
.\" Copyright 2021 Klara, Inc. | ||
.\" | ||
.Dd July 29, 2021 | ||
.Dt ZFS-USERNS 8 | ||
.Os | ||
. | ||
.Sh NAME | ||
.Nm zfs-userns | ||
.Nd attach or detach ZFS filesystem from a user namespace | ||
.Sh SYNOPSIS | ||
.Nm zfs Cm userns attach | ||
.Ar usernsid | ||
.Ar filesystem | ||
.Nm zfs Cm userns detach | ||
.Ar usernsid | ||
.Ar filesystem | ||
. | ||
.Sh DESCRIPTION | ||
.Bl -tag -width "" | ||
.It Xo | ||
.Nm zfs | ||
.Cm userns attach | ||
.Ar usernsid | ||
.Ar filesystem | ||
.Xc | ||
Attach the specified | ||
.Ar filesystem | ||
to the user namespace identified by | ||
.Ar usernsid . | ||
From now on this file system tree can be managed from within a user namespace if the | ||
.Sy zoned | ||
property has been set. | ||
.Pp | ||
You cannot attach a zoned dataset's children to another user namespace. | ||
You can also not attach the root file system | ||
of the user namespace or any dataset which needs to be mounted before the zfs service | ||
is run inside the user namespace, as it would be attached unmounted until it is | ||
mounted from the service inside the user namespace. | ||
.Pp | ||
To allow management of the dataset from within a user namespace, the | ||
.Sy zoned | ||
property has to be set and the user namespaces needs access to the | ||
.Pa /dev/zfs | ||
device. | ||
The | ||
.Sy quota | ||
property cannot be changed from within a user namespace. | ||
.Pp | ||
After a dataset is attached to a user namespace and the | ||
.Sy zoned | ||
property is set, a zoned file system cannot be mounted outside the user namespace, | ||
since the user namespace administrator might have set the mount point to an unacceptable value. | ||
.It Xo | ||
.Nm zfs | ||
.Cm userns detach | ||
.Ar usernsid | ||
.Ar filesystem | ||
.Xc | ||
Detaches the specified | ||
.Ar filesystem | ||
from the user namespace identified by | ||
.Ar usernsid . | ||
.El | ||
.Sh SEE ALSO | ||
.Xr zfsprops 7 |
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