On 7/30/23 13:30, Karel Lucas wrote:
Hi all, I'm going to install openBSD on a small PC that currently has PfSense on it. This PC boots this OS via (U)EFI, and therefore has an EFI partition on the existing SSD. The current partition table looks like, as shown by openBSD fdisk: 0: efiboot0 1: gptboot0 2: swap0 3: zfs0. Should I keep the (U)EFI partition? And if so, how do I mount the future openBSD root partition to this (U)EFI installation? Are there any other things I should watch out for? I look forward to receiving responses from this community. Sincerely, Karel.
The OpenBSD installer is designed to be able to install to a totally blank hard disk, so there is no need to retain any of the current partitions. IF you are trying to do simple wipe and load, just chose the "entire disk GPT" option and everything will happen as you wish, most likely. If you think your hardware is special, you might want to test on another disk, at least temporarily. IF you want to multiboot, just don't until you can answer questions like this yourself. Multibooting is very complicated, and requires a mastery of the boot process of ALL the OSs installed. People often consider it a way to "learn" a new OS, I disagree, it is a good way to get massively frustrated and lose a lot of data. Nick.
