A few Armbian packages were updated (armbian-bsp-cli-helios64, armbian-config, armbian-firmware &armbian-zsh) to version 21.05.08. At some point I noticed that the fancontrol service had failed to start up after the reboot - it was complaining about a file missing(/dev/thermal-cpu). If you run into this after the update, just update your /etc/fancontrol to the content below and your fancontrol should go back to normal.     # Helios64 PWM Fan Control Configuration # Temp sou