OpenBSD notes
Table of Contents
This is a living document, notes will be added as they appear.
1 Upgrading
OpenBSD usually upgrades rather cleanly. Find the upgrade instructions, read them, read them again.
https://www.openbsd.org/faq/upgrade66.html
It is recommended that you download the base system packages to the system you wish to upgrade. This may be done like so:
# mkdir -p /usr/rel/6.6 # cd /usr/rel/6.6 # wget -r -np -nH -R 'index.html*' -R '*.iso' -R 'install*.fs' -nH --cut-dirs=4 https://mirror.one.com/pub/OpenBSD/6.6/amd64/
This ensures that the base system is available to the installer without having to worry about networking, which is handy as OpenBSD, typically acting as a firewall, often has intricate and complex network setup.
When booting the installer, at the boot> prompt, enter something akin to:
boot> boot sd2a:/bsd.rd
Note that sd2a is the root partition (see pre-flight checklist below), and bsd.rd is copied to / from the newest release in /usr/rel.
1.1 Pre-flight checklist
- Know where the system is installed. E.g.:
# df / Filesystem 512-blocks Used Avail Capacity Mounted on /dev/sd2a 41276476 3643536 35569120 9% /
Here the root fs is sd2a.