Script for flashing EdgeRouter X SFP with OpenWrt

Usage

• Connect to eth0 of EdgeRouter X SFP with default configuration
• Set ethernet IP of your PC to 192.168.1.5/24
• Ensure that no other device in your network has IP 192.168.1.20 or 192.168.1.1
• execute ./flash_openwrt.sh
• wait
• Connect to eth1 of EdgeRouter when instructed to do
• wait for finishing

Demonstration

https://asciinema.org/a/458508

How it works

• It downloads
  • Ubiquiti EdgeOS 2.0.6 stock firmware with new bootloader e51_002_4c817
  • OpenWrt 18.06-snapshot-r7911 initramfs factory with small enough kernel for flashing through EdgeOS
  • OpenWrt 21.02.1 sysupgrade image
• Ensures that only one firmware image is stored on device
• Installs EdgeOS 2.0.6
• Checks bootloader version an upgrades to boodloader that enables TFTP recovery in case something goes wrong
• Installs OpenWrt initramfs factory image and then sysupgrade to current verion
• Shows if it worked

See also

• EdgeRouter - Manual TFTP Recovery
• EdgeRouter - How to Update the Bootloader

License

Copyright © 2021 Daniel A. Maierhofer