.\"	$OpenBSD: sysupgrade.8,v 1.8 2019/05/09 21:09:37 naddy Exp $
.\"
.\" Copyright (c) 2019 Florian Obser <florian@openbsd.org>
.\"
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.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.Dd $Mdocdate: May 9 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 fkn
.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 k
Keep the files in
.Pa /home/_sysupgrade .
By default they will be deleted after the upgrade.
.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 .