The three golden rules of installation

This page is more for absolute beginners, who'd like to install OpenBSD (Hi Wilfrid!).

This is more or less tongue-in-cheek, but it's actually quite good, and it comes from experience.

The Golden Rules

The golden rules are the following:

  1. Always use the whole disk for an installation - having several operating systems on one disk is nice, but not as useful as you might think. Use the whole disk. If you'd like to keep you existing disk, buy a new one or find an old 40GB you can put in your computer to perform the installation on.
  2. When partitioning the disk, follow the OpenBSD information religiously. This information can be found here for most architectures. If you have a CD set, follow religiously the information on the CD liner.
  3. Once you have partitioned the disk, the installer will ask you to confirm this choice: do not skip this step! Confirm every single partition. Once you have done that, the installer will loop back to the first partition. Then, and only then, you can enter done to confirm the partitions and move on with the installation.

Disk Partitioning Explained

Always remember that, under OpenBSD:

Differences between Linux and OpenBSD

Things that are different between the OpenBSD and Linux partitioning schemes:

The last note about counting also applies to other peripherals under OpenBSD: for instance, if you have several network cards, they will be noted as /dev/xl0 /dev/xl1 and so on and so forth.

Please Note:

None of the above applies to the upgrade of OpenBSD. I'll probably write a separate entry for the Upgrade process.

Hope this helps!