BIOS Flash Procedure¶
Update Manually¶
Tip
Before upgrading, check the current BIOS version by using the command sudo dmidecode..
- Retrieve the BIOS update disk image from https://firmware.netgate.com/bios/bios09.img.gz. 
- Write the image to a USB memstick. - See also - Writing Flash Drives
- Writing an OS installation image to flash media 
 
- Connect to the console port of the system. - See also - Connecting to Console Port
- Writing an OS installation image to flash media 
 
- Place the memstick in one of the USB ports on the system and boot the system. 
- Wait for the BIOS update disk to boot 
- Update the BIOS on the unit by running the following command: - # ./flash.sh- The script will automatically detect the type of unit and apply the correct BIOS update. 
- Wait until the BIOS flash procedure completes after which the unit must be powered off and back on. 
Note
There is no need for a clean shutdown, however running either reboot or
shutdown -r will restart the unit which is typically sufficient.