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---
title: "FreeBSD 12.2-RELEASE Installation Instructions"
sidenav: download
---
:releaseCurrent: 12.2-RELEASE
:localRel: 12.2
= FreeBSD {localRel}-RELEASE Installation Instructions
FreeBSD {releaseCurrent} Installation Instructions
== Abstract
This article gives some brief instructions on installing FreeBSD {releaseCurrent} and upgrading the systems running earlier releases.
== Table of Contents
* <<install,Installing FreeBSD>>
* <<upgrade,Upgrading FreeBSD>>
[[install]]
== Installing FreeBSD
The Installing FreeBSD chapter of the FreeBSD Handbook provides more in-depth information about the installation program itself, including a guided walk-through with screenshots.
[[upgrade]]
== Upgrading FreeBSD
If you are upgrading from a previous release of FreeBSD, please read upgrading section in the Release Notes for notable incompatibilities carefully.
[[upgrade-source]]
== Upgrading from Source
The procedure for doing a source code based update is described in Updating FreeBSD from Source.
For SVN use the releng/{localRel} branch which will be where any upcoming Security Advisories or Errata Notices will be applied.
[[upgrade-binary]]
== Upgrading Using "FreeBSD Update"
The {{< manpage "freebsd-update" "8">}} utility supports binary upgrades of i386 and amd64 systems running earlier FreeBSD releases. Systems running 11.4-RELEASE or 12.1-RELEASE can upgrade as follows:
[.screen]
----
# freebsd-update fetch
# freebsd-update install
----
Now the {{< manpage "freebsd-update" "8">}} utility can fetch bits belonging to {releaseCurrent}. During this process {{< manpage "freebsd-update" "8">}} will ask for help in merging configuration files.
[.screen]
----
# freebsd-update upgrade -r 12.2-RELEASE
# freebsd-update install
----
The system must now be rebooted with the newly installed kernel before the non-kernel components are updated.
[.screen]
----
# shutdown -r now
----
After rebooting, {{< manpage "freebsd-update" "8">}} needs to be run again to install the new userland components:
[.screen]
----
# freebsd-update install
----
At this point, users of systems being upgraded from earlier FreeBSD releases will be prompted by {{< manpage "freebsd-update" "8">}} to rebuild all third-party applications (e.g., ports installed from the ports tree) due to updates in system libraries.
After updating installed third-party applications (and again, only if {{< manpage "freebsd-update" "8">}} printed a message indicating that this was necessary), run {{< manpage "freebsd-update" "8">}} again so that it can delete the old (no longer used) system libraries:
[.screen]
----
# freebsd-update install
----
Finally, reboot into {releaseCurrent}
[.screen]
----
# shutdown -r now
----
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