lxbmc

board managment controller for the solid-run honeycomb arm server

• screws into a 2.5' drive bay
• controlls power on.off
• usb for virtual ethernet and disk
• access the cpus local serial terminal remotely

setup

after installing ubuntu with the usual usbboot thing:

echo 'dtoverlay=dwc2,dr_mode=peripheral' >> /boot/firmware/config.txt

systemctl stop serial-getty@ttyS0.service
systemctl mask serial-getty@ttyS0.service

systemctl stop systemd-resolved
systemctl disable systemd-resolved
rm /etc/resolv.conf
echo nameserver 8.8.8.8 >  /etc/resolv.conf
apt install dnsmasq
systemctl stop dnsmasq
systemctl disable dnsmasq

then install starfeldt bmc and config as:

[power]
switch='gpio5'

[serial]
device='/dev/ttyS0'

[usb]

or if you're not a devguard customer maybe look at pikvm.org for a free alternative

fan

https://github.com/neg2led/cm4io-fan