FreeBSD 12.0-RELEASE Installation Instructions

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Last modified on 2021-01-17 19:05:35 +0000 by Guangyuan Yang.

Abstract

This article gives some brief instructions on installing FreeBSD 12.0-RELEASE and upgrading the systems running earlier releases.

Table of Contents

1. Installing FreeBSD
2. Upgrading FreeBSD

1.�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.

2.�Upgrading FreeBSD

If you are upgrading from a previous release of FreeBSD, please read upgrading section in the Release Notes for notable incompatibilities carefully.

2.1.�Upgrading from Source

The procedure for doing a source code based update is described in Updating FreeBSD from Source.

For SVN use the releng/12.0 branch which will be where any upcoming Security Advisories or Errata Notices will be applied.

2.2.�Upgrading Using “FreeBSD Update”

The freebsd-update(8) utility supports binary upgrades of i386 and amd64 systems running earlier FreeBSD releases. Systems running 11.2-RELEASE can upgrade as follows:

# freebsd-update fetch
# freebsd-update install

Now the freebsd-update(8) utility can fetch bits belonging to 12.0-RELEASE. During this process freebsd-update(8) will ask for help in merging configuration files.

# freebsd-update upgrade -r 12.0-RELEASE

# freebsd-update install

The system must now be rebooted with the newly installed kernel before the non-kernel components are updated.

# shutdown -r now

After rebooting, freebsd-update(8) needs to be run again to install the new userland components:

# freebsd-update install

At this point, users of systems being upgraded from earlier FreeBSD releases will be prompted by 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 freebsd-update(8) printed a message indicating that this was necessary), run freebsd-update(8) again so that it can delete the old (no longer used) system libraries:

# freebsd-update install

Finally, reboot into 12.0-RELEASE

# shutdown -r now

After rebooting, it is recommended to regenerate the pkg binary tool to prevent future issues when installing some applications using the pkg tool.

# pkg-static install -f pkg