Acer AB460 F1 - Manual (Page 564)

4 Networking Switch Modules 544
Upgrading Fallback Firmware using TFTP:
To upgrade fallback firmware using TFTP, use the procedure below.
1. Copy the latest firmware to the TFTP root directory on the TFTP
server machine.
2. Make sure the upgraded TFTP server and switch both have
network reach ability.
3. Login to the Switch CLI either through Telnet or a serial console
port.
4. Type the below command to upgrade the firmware in the normal
area:
firmware upgrade tftp://<ip-address>/<filename> flash:fallbackl
Here <ip-address> is the IP address of the TFTP server and <filename> is
the name of the firmware image file.
5. On a successful download, the CLI displays the below string:
Firmware download completed successfully.
6. After a successful download, reboot the switch using the fallback
image to verify the fallback image. Refer the steps listed above in
the procedure "Booting using a Fallback Firmware Image:" above
to boot the switch in the fallback image.
7. Once both the normal and fallback image both have latest
firmware, continue to use the normal image as directed in step 8
of the procedure "Booting using a Fallback Firmware Image:".
Firmware Failure Recovery Steps
In case you have any issues in booting the switch with either a normal
or fallback image, use the procedure below to recover the switch
functionality with a correctly working firmware image.
Recovering Switch Functionality with a Firmware Image:
1. Copy the latest firmware to the TFTP root directory on a TFTP
server machine.
2. Make sure the upgraded TFTP server and switch both have
network reach ability.
1. Reboot the switch by power cycling the switch power.
2. During reboot, press any key when it displays the below text.