notes: add a note on how to reboot into the BIOS

Signed-off-by: Xe Iaso <me@xeiaso.net>

1 files changed, 28 insertions, 0 deletions

diff --git a/lume/src/notes/2024/systemd-reboot-bios.md b/lume/src/notes/2024/systemd-reboot-bios.md
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+---
+title: How to reboot a Linux system into the BIOS
+date: 2024-01-11
+---
+
+Usually to reboot your system into the BIOS, you have to press a
+button or button combination on boot. This is usually one of the
+following keys:
+
+- F2
+- F10
+- Escape
+
+Sometimes you just can't get into the BIOS, but you can boot into a
+Linux system. In order to force the system to reboot into the BIOS,
+run this command:
+
+```
+sudo systemctl reboot --firmware
+```
+
+This will force it to go into the BIOS so you can change settings or
+update the BIOS.
+
+On Windows, search for "Advanced Startup Options" in the start menu
+and click through the "yes I really need to do something advanced"
+boxes until you get something on the lines of "UEFI firmware
+settings". That will get you into the BIOS.