English Chinese (Simplified) (zh_CN)
FreeBSD 11.4-RELEASE Installation Instructions
FreeBSD {localRel}-RELEASE Installation Instructions
FreeBSD {releaseCurrent} Installation Instructions
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>>
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.
Upgrading FreeBSD
If you are upgrading from a previous release of FreeBSD, please read upgrading section in the Release Notes for notable incompatibilities carefully.
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.
Upgrading Using "FreeBSD Update"
The {{< manpage "freebsd-update" "8">}} utility supports binary upgrades of i386 and amd64 systems running earlier FreeBSD releases. Systems running 11.2-RELEASE can upgrade as follows:
# 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.
# freebsd-update upgrade -r 11.4-RELEASE
# freebsd-update install