If the OnBoard was last booted over the network from a TFTP server, the message shown in the following figure appears.Mgmt Æ Firmware Upgrade Screen With Net Boot MessageIf the last boot was a network boot from a TFTP server, clicking the “Upgrade Now” button writes the currently-running image from the RAM memory into the flash memory.As described in a note on the screen shown in Mgmt Æ Firmware Upgrade Screen With Net Boot Message, if the screen appears, the administrative user has two additional choices:
• Configure another image that resides on a TFTP server as the boot file, boot from the new image, and then return to this screen to upgrade the new image from the RAM memory.
• Boot from another image that is stored in the flash memory, and then use the current screen to download a new image using FTP.For more details about how images are stored in the OnBoard and about configuration file backups, see Appendix 15, “Advanced Boot and Backup Configuration Information.To Upgrade the OnBoard’s Operating System, Applications, and Configuration FilesSee Firmware Upgrade Screen Fields if needed for the values to supply in the fields. To upgrade using an image booted over the network from a TFTP server, boot the OnBoard from a TFTP server before starting this procedure; see To Configure OnBoard Boot if needed.
2. Go to Mgmt Æ Firmware upgrade.
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3. To upgrade using an image from an ftp server, do the following steps:
a. Enter the IP address or DNS name of the ftp server in the “FTP site” field.
c. Enter the username for the ftp site in the “Username” field.
d. Enter the password required for accessing the ftp site in the “Password” field.
e. Enter the pathname of the software image file on the ftp server in the “Image file” field.
5. When the download completes, go to Mgmt Æ Restart and restart the OnBoard.