After boot, re-run:
show platform rommon
Expected output:
ROMMON version: System Bootstrap, Version 17.3(1r), RELEASE SOFTWARE
One engineer recently upgraded an ASR1002 from ROMMON 152-3r to 173-1r because the router failed to boot IOS-XE 17.9.x. The old ROMMON didn’t recognize the new ESP module. After the upgrade, the router booted perfectly.
This article is for educational purposes. Always follow Cisco’s official documentation and change management policies when upgrading firmware. asr1000-rommon.173-1r.spa.pkg
Based on the filename provided, this is a specific firmware package for the Cisco ASR 1000 Series Aggregation Services Routers.
Here is a helpful technical post formatted for a network engineering blog or knowledge base forum.
A: No. ROMMON is independent. Your startup-config and IOS XE image remain untouched. After boot, re-run: show platform rommon
Unlike standard IOS-XE software upgrades, ROMMON upgrades are often subtler. However, running the correct ROMMON version is essential for:
No New Features for Most Users
One-Way Upgrade on Some Platforms
Requires Reload
The .pkg file is loaded like any other package from the IOS-XE bootflash:
copy tftp://server/asr1000-rommon.173-1r.spa.pkg bootflash:
# Verify the file
dir bootflash:
# Install ROMMON package
request platform software package install file bootflash:asr1000-rommon.173-1r.spa.pkg
# Reload the router
reload
After reload, check with:
show platform
show rommon