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6 Firmware update
Updating firmware via system resources
Updating firmware via bootloader
Secondary bootloader update (U-Boot)
6.1 Updating firmware via system resources
To update the firmware for the device running the operating system, follow procedure described below.
Prepare the selected server for operation. You should know the server address; also firmware
distributive file should be loaded onto the server.
The router should be prepared for operation according to the documentary requirements. Router
configuration should allow for data exchange with the server via TFTP/FTP/SCP and ICMP protocols. At
that, you should take into account the server inherence to the router security zones.
Connect to the router locally via Console port or remotely via Telnet or SSH.
Check the server availability for the router using ping command on the router. If the server is not
available, check the router settings and the status of the server network interfaces.
To update the router firmware, enter the following command. Specify IP address of the server being
used as <server> For updates that utilize FTP or SCP server, you should enter a username (<user>
parameter) and a password (<password> parameter). Specify the name of the firmware file loaded onto
the server as <file_name> parameter (when using SCP, the full path must be as <folder> parameter).
When the command is executed, router will copy the file into its internal memory, perform data integrity
check and save it into non-volatile memory.
TFTP:
esr# copy tftp://<server>:/<file_name> system:firmware
To update the firmware, use any of the following servers: TFTP, FTP, SCP. Router firmware files
obtained from the manufacturer should be allocated on the server.
The router stores two copies of the firmware. To ensure the reliability of the firmware update
procedure, only the copy that was not used for the last device startup is available for the update.
When update the firmware, the router configuration is converted according to a new version.
When loading a router with an older software version than the previously loaded configuration, the
configuration is not converted and is subsequently deleted.
You can update firmware from earlier versions using the instructions in the section Updating
firmware via bootloader.
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