Installation ManualH3C AR 18-2X Series RoutersChapter 3 Starting and Maintainingthe Router3-21Backuping Boot ROM program to FLASH successed!Step 3: When the sub-menu appears again, select <5> to exit andreboot the router.II. Restoring the extended segment of the Boot Romprogram from the FlashIf faults occur to the extended segment of the Boot Rom or youupgrade it mistakenly, you can restore the extended segment of theBoot Rom from the Flash to the Boot Rom by taking these steps:Step 1: Enter the Boot Menu, and then select <7> to enter theBoot Rom operation sub-menu.Step 2: Select <3> in the operation sub-menu to restore theextended segment of the Boot Rom from the Flash.If the operation is successful, the system displays:Writing to Boot Rom.Please wait...######Restoring Boot Rom program successed!Step 3: When the sub-menu appears again, select <5> to exit andreboot the router.3.2.5 Upgrading Boot ROM at CLIAfter the router starts normally, you can upgrade and back upapplication programs, and backup and restore the configuration at thecommand line interface (CLI)I. Upgrading Boot ROM Through TFTP1) Connect the TFTP server to the router on which Boot ROMis to be upgraded so that they can communicate with each