.\" $OpenBSD: sysupgrade.8,v 1.22 2024/10/25 03:42:06 deraadt Exp $ .\" .\" Copyright (c) 2019 Florian Obser .\" .\" 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: October 25 2024 $ .Dt SYSUPGRADE 8 .Os .Sh NAME .Nm sysupgrade .Nd upgrade system to the next release or a new snapshot .Sh SYNOPSIS .Nm .Op Fl fkns .Op Fl b Ar base-directory .Op Fl R Ar version .Op Ar installurl | path .Sh DESCRIPTION .Nm is a utility to upgrade .Ox to a new release or 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 b Ar base-directory Download files to .Ar base-directory Ns / Ns Pa _sysupgrade instead of .Pa /home/_sysupgrade . .It Fl f For snapshots, force an already applied upgrade. 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 Ar version Upgrade to a specific release version. Only upgrades from one version to the next are tested. Skipping versions may work. Downgrading is unlikely to work. .It Fl s Upgrade to a snapshot. The default is to upgrade to the next release. .El .Pp When updating to a release or snapshot which lacks the required signify keys in .Pa /etc/signify , the missing keys will be downloaded in a secure way. In the usual case, the keys will already be present because .Ox releases ship with the current key, the next key, and a collection of older keys. .Pp See .Xr upgrade.site 5 for how to customize the upgrade process. .Sh FILES .Bl -tag -width "/auto_upgrade.conf" -compact .It Pa /auto_upgrade.conf Response file for the ramdisk kernel. .It Pa /bsd.upgrade The ramdisk kernel to trigger an unattended upgrade. .It Pa /etc/installurl .Ox mirror top-level URL for fetching an upgrade. .It Pa /home/_sysupgrade Directory the upgrade is downloaded to. .El .Sh SEE ALSO .Xr signify 1 , .Xr installurl 5 , .Xr upgrade.site 5 , .Xr autoinstall 8 , .Xr release 8 , .Xr sysmerge 8 .Sh HISTORY .Nm first appeared in .Ox 6.6 .