Installing Sophos Home Edition UTMon a Lanner 7541C-E01/A firewall appliance
I bought mine on eBay for $70 with $13 shipping.www.ebay.com/.../114305668920
Make sure you have a SERIAL cable to connect your laptop/desktop to the RJ45 console porton the firewall. The one I bought came witha DB-9 to RJ45 console serial cable. You probablyneed a USB to serial converter as well.
Prepare a bootable USB Sophos UTM installationSee: www.fastvue.co/.../
I read this and learned Sophos wants serial ports to be set to 38400. This came in handy later.community.sophos.com/.../466462
I downloaded the 7541C manual to read about the BIOS settings here:www.manualslib.com/.../Lanner-Fw-7541.html
2. I configured Putty on my laptop to connect to the device with its default serial settings:115200, n, 8, 1
3. Prepare a bootable USB key with the latest Sophos UTMversion on it. I used 9.7.x
4. Plug in an EXTERNAL USB keyboard to the firewall
5. Boot the firewall, and using the EXTERNAL keyboard attached to the firewall, Press DEL to enter the BIOS setup.
6. Change the Boot Sequence Priority to USB first
7. Change the Serial COM1 speed to 38400
8. Save your new BIOS settings and Exit
9. Change your PUTTY settings to 38400 for your connectionto the firewall.
10. Boot the firewall, it should boot to your USB key.
11. At the boot prompt, press enter. (on the external keyboard)
12. When the installation menu is at the START install prompt,press ALT-F2 on the external keyboard to get to a console screen.
NOTE: MY CONSOLE SCREEN DID NOT DISPLAY - and I didn't troubleshootthis. I simply typed the next command "flying blindly" to mountthe additional filesystem necessary for the USB install to work.
Type (blindly in my case):mount /dev/sdb1 /install <ENTER>
13. Press ALT-F1 to return to the Sophos UTM installation program
14. Follow the normal UTM installation steps.
15. I backed up my current UTM settings, and was able to import/restorethem to my new Lanner 7541 firewall appliance and it worked perfectly.
Note on the USB image, I used the asg-9.707-5.1 ISO image to create my bootable USB key. A friend tried the ssi-9.707-5.1 and it has an automatic timer that starts the install - which makes mounting /dev/sdb1 to /install a challenge.