website/site/blog/2020-11-14-openbsd-fde.md

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2022-12-27 22:04:45 +01:00
# OpenBSD FDE Setup
This is a condensed version of [OpenBSD FDE
FAQ](https://www.openbsd.org/faq/faq14.html#softraid).
Boot installer, drop to shell with "s"
<pre>
# cd /dev && sh MAKEDEV sd0
# dd if=/dev/urandom of=/dev/rsd0c bs=1m
# fdisk -iy -g -b 960 sd0 # GPT / without -g and -b for MBR
# disklabel -E sd0
</pre>
Note, switch to kbd en before setting the password as this is
what you have on the boot prompt.
<pre>
# bioctl -c C -l sd0a softraid0
# dd if=/dev/zero of=/dev/rsd1c bs=1m count=1
</pre>
Ctrl+D to restart the installer. Choose sd1 as install target.
If sd1 is not present:
<pre>
# cd /dev && sh MAKEDEV sd1
</pre>
When the installer later asks about installing with MBR or GPT layout,
choose MBR. Even if you boot via UEFI/GPT.