Automatic updates #
This is how I make OpenBSD update automatically using cron.
Warning:
The OpenBSD project doesn’t recommend mindlessly updating current from cron. It’s probably a bad idea if you’re running a server. It however is possible and I like it for my home PC.
Packages #
To have packages updated automatically after all system upgrades, create the file /upgrade.site with this content:
echo 'pkg_add -Iu -Dsnap' >>/etc/rc.firsttime
Make the file executable using chmod +x.
Snapshots #
To have snapshots installed every night at 3 am, create the file /etc/crontab with this content:
# Example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12) OR jan,feb,mar,apr ...
# | | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# | | | | |
# * * * * * user-name command to be executed
0 3 * * * root sysupgrade -s
Patches #
Alternatively, if you’re following stable rather than current, you can instead use this:
0 3 * * * root syspatch && reboot