Updating the firmware : Installing NVR firmware : Booting from the alternate partition
 
Booting from the alternate partition
Each appliance can have up to two firmware versions installed. Each firmware version is stored in a separate disk partition.
To boot into alternate firmware via the local console CLI
1. Install firmware onto the alternate partition (see “Installing alternate firmware”).
2. Connect your management computer to the FortiRecorder console port using a RJ-45-to-DB-9 serial cable or a null-modem cable.
3. Initiate a connection from your management computer to the CLI of the FortiRecorder appliance, and log in as the admin administrator.
For details, see “Connecting to FortiRecorder web UI”.
4. Enter the following command to restart the FortiRecorder appliance:
execute reboot
5. As the FortiRecorder appliances starts, a series of system startup messages appear.
Press any key to display configuration menu........
Immediately press a key to interrupt the system startup.
 
You have only 3 seconds to press a key. If you do not press a key soon enough, the FortiRecorder appliance reboots and you must log in and repeat the execute reboot command.
If you successfully interrupt the startup process, the following messages appears:
[G]: Get firmware image from TFTP server.
[F]: Format boot device.
[B]: Boot with backup firmware and set as default.
[Q]: Quit menu and continue to boot with default firmware.
[H]: Display this list of options.

Enter G,F,B,Q,or H:

Please connect TFTP server to Ethernet port "1".
6. Type B to reboot and use the backup firmware.
See also
Installing alternate firmware