50Chapter 5: Router Software Maintenance
Upgrading the extended segment of the Boot ROM image
1Enter Boot Menu (refer to the section “Boot Menu”) and select option 8 to enter Boot ROM Download Menu.
2Select option 2 in the menu to upgrade the extended segment of the Boot ROM image using Xmodem. Multiple speed options are available. The subsequent steps are the same as those described in the section for upgrading the application image.
CAUTION: This upgrade approach upgrades only a portion of the Boot
ROM image, so you can make a second attempt once errors occur.
Upon completion of application image upgrade, the router reboots and checks Boot ROM version for consistency before starting the Comware
3.11software. If the version of the current extended Boot ROM image segment is not the same as that of the extended segment to be started, the system automatically updates the Boot ROM image, and displays “Upgrade Bootrom............! Download completed.Please wait, it needs a
long time###### Writing into Boot ROM Succeeds.” Then, the system continues its boot process.
Backing
Up/Restoring the
Extended Segment
of the Boot ROM
Image
Backing up the extended segment of the Boot ROM image to the Flash
Follow these steps to back up the extended segment of the Boot ROM image:
1Enter Boot Menu (refer to the section “Boot Menu”) and select option 8 to enter Boot ROM Download Menu.
2Select option 4 in the menu to copy the current extended segment to Flash memory.
Backup Extended Segment, are you sure?[Y/N]
Enter <Y>. The system displays:
Writing to FLASH.Please wait...####
Backuping Boot ROM program to FLASH successed!
3When Boot ROM Download Menu appears again, select option 5 to exit and reboot the router.
