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.\"	$OpenBSD: sysupgrade.8,v 1.7 2019/05/06 18:33:21 otto Exp $
.\"
.\" Copyright (c) 2019 Florian Obser <florian@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: May 6 2019 $
.Dt SYSUPGRADE 8
.Os
.Sh NAME
.Nm sysupgrade
.Nd upgrade system to the next release or a new snapshot
.Sh SYNOPSIS
.Nm
.Op Fl fn
.Op Fl r | s
.Op Ar installurl
.Sh DESCRIPTION
.Nm
is a utility to upgrade
.Ox
to the next release or a new snapshot if available.
.Pp
.Nm
downloads the necessary files to
.Pa /home/_sysupgrade ,
verifies them with
.Xr signify 1 ,
and copies bsd.rd to
.Pa /bsd.upgrade .
.Pp
.Nm
by default then reboots the system.
The bootloader will automatically choose
.Pa /bsd.upgrade ,
triggering a one-shot upgrade using the files in
.Pa /home/_sysupgrade .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl f
Force an already applied upgrade.
The default is to upgrade to latest snapshot only if available.
This option has no effect on releases.
.It Fl n
Fetch and verify the files and create
.Pa /bsd.upgrade
but do not reboot.
.It Fl r
Upgrade to the next release.
The default is to find out if the system is running a release or a snapshot.
In case of release
.Nm
downloads the next release.
.It Fl s
Upgrade to a snapshot.
The default is to find out if the system is running a release or a snapshot.
In case of release
.Nm
downloads the next release.
.El
.Sh FILES
.Bl -tag -width "/home/_sysupgrade" -compact
.It Pa /etc/installurl
.Ox
mirror top-level URL for fetching an upgrade.
.It Pa /home/_sysupgrade
Directory the upgrade is downloaded to.
.It Pa /bsd.upgrade
The ramdisk kernel to trigger an unattended upgrade.
.El
.Sh SEE ALSO
.Xr signify 1 ,
.Xr installurl 5 ,
.Xr release 8
.Sh HISTORY
.Nm
first appeared in
.Ox 6.6 .