Cisco Systems A9014CFD manual Manually Upgrading the Rommon

Chapter 6 Software Upgrade

Manually Upgrading the ROMMON

–From the ROMMON:

rommon> AUTO_UPGRADE_MCU=TRUE FALSE

–From theIOS:

Router# upgrade mcu preference [enable disable]

Once the MCU is upgraded, the router is not reloaded. Subsequent reload versions are compared; if the versions are same, then the MCU is not upgraded.

•If the AUTO_UPGRADE_ROMMON variable is set to FALSE, then the MCU can be upgraded as follows:

Router# upgrade mcu file flash:image.hex

Manually Upgrading the ROMMON

Complete the following steps to manually upgrade the router ROMMON:

Step 1 Load the IOS image.

Step 2 Copy the upgradable ROMMON file ASR901_RM2.srec, to the flash memory.

Step 3 Upgrade the ROMMON using the following command:

Router# upgrade rom-monitor file flash:ASR901_RM2.srec

The router reloads and comes up with upgradable ROMMON.

Step 4 Check the status of the currently running ROMMON using any one of the following commands:

•From the ROMMON: rommon> showmon

•From the IOS:

router> show rom-monitor

Note While upgrade is in progress, if something goes wrong like power-off or power cycler removed, or if the erase program is not done properly, you can reset the board. It falls back to the read-only rommon.

After the ROMMON upgrade, if you need to fall back to either the read-only ROMMON, or the upgrade ROMMON, use any one of the following commands:

•From the IOS:

Router# upgrade rom-monitor preference readonly upgrade

•From the ROMMON:

rommon> rommon-pref readonly

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

OL-23826-09 6-5