Cisco 7304 Installation Guide - Page 94

Upgrading FPGA Chapter 7 Upgrading, Configuration, and Troubleshooting Tasks Upgrading FPGA The instructions for upgrading FPGA on the Cisco 7304 router can be found in Cisco 7304 FPGA Bundling and Update. FPGA Recovery Upgrade on the NSE-150 Minimal boot mode is entered on the NSE-150 if an in-progress FPGA upgrade is abruptly stopped (due to various factors such as a power outage, router crash, hardware OIR, or other reason). In minimal boot mode, the Fast Ethernet management port (interface fastethernet 0) is the only working port on the NSE-150. If minimal boot mode is entered when using a Cisco 7304 with an NSE-150 because an FPGA upgrade was interrupted, simply retry the upgrade in minimal boot mode using the upgrade fpga all command. After upgrading the FPGA, the router can be booted using a Cisco IOS image on one of the Flash file systems on the router or from another source. Upgrading ROMmon Upgrading the rewriteable ROM monitor (ROMmon) allows you to download a new ROMmon image instead of having to replace hardware (NSE) to get a new image. There are three ROMmon images: one "golden"-always there (ROM 0-one-time programmable) and two others that you can configure the system to point to (ROM 1 and ROM 2). At bootup, the system starts with the golden image and then jumps to the one to which you have pointed the system. If a new ROMmon image you are pointing to fails to boot up Cisco IOS for the first time, then the router marks this ROMmon image as invalid and will revert to the golden image after a subsequent reset or power cycling. After you have downloaded a new ROMmon image to the rewriteable ROMmon, you need to do a reload of Cisco IOS (recommended) for the new ROMmon to take effect. This is required only for the new ROMmon to take effect; it is not required otherwise. The first time a new ROMmon image is loaded, you must allow the system to boot up Cisco IOS before doing any additional resets or power cycling. If the ROMmon loading process is interrupted, the system interprets this as a bootup failure of the new ROMmon image. The router reverts the ROMmon back to the golden image in ROM 0. Note Images are marked as invalid if the first Cisco IOS bootup is not completed. Do not reset the router when it is doing an initial bootup. Using the show rom-monitor Command Use the show rom-monitor command to determine which ROMmon images are available. See the following example for information shown in the output of the show rom-monitor command: Router> show rom-monitor ROM - - ROM 0 (Golden ROM) IMAGE STATUS - Cisco 7304 Network Service Engine Installation and Configuration 7-2 OL-3967-01