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- Copy the FortiGate firmware image to TFTP directory:
cp /path/to/fortigate_formware.out /private/tftpboot/
Note: The default TFTP directory on macOS is /private/tftpboot, but any directory can be used.
- Set permissions to ensure the TFTP server can access the files:
chmod -R 777 /private/tftpboot/
Remember to change the permissions back later:
chmod -R 755 /private/tftpboot/
- Disable MacOS Firewall: Navigate to System Settings -> Network -> Firewall -> Turn Off (remember to enable it again later).
- Start TFTP server:
sudo launchctl start com.apple.tftpd
- Verify TFTP is running and listening on port 69 (udp 0 0 *.69):
sudo netstat -an | grep 69
- Connect an Ethernet cable from the macOS computer to the FortiGate WAN1 port (or another Ethernet port).
Assign a static IP address to the Ethernet interface: Go to System Settings -> Network -> Ethernet -> Details.
Set 'Configure IPv4' to Manual:
- IP Address: 192.168.1.100
- Subnet Mask: 255.255.255.0
- From the macOS Terminal, test connectivity to the TFTP server:
tftp 192.168.1.100
tftp> get fortigate_formware.out
tftp> quit
- Connect to the FortiGate console port using PuTTY on macOS:
Connect the Serial to the USB adapter to the PC.
Open a terminal and list available serial ports:
ls /dev/*usb*
Find a device like /dev/tty.usbserial- (e.g., /dev/tty.usbserial-A9XBSOU6). Note this name: it is the serial port for PuTTY.
Open PuTTY and use the following settings:
- Follow the instructions from step 9 onwards in Technical Tip: Formatting and loading FortiGate firmware image using TFTP.
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