Cisco ASR 9000 Series User manual

Cisco ASR 9000 Series Aggregation Services Router ROM Monitor
Configuration Guide, Release 5.1.x
First Published: 2014-07-01
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Text Part Number: OL-30420-01

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CONTENTS
Preface Preface vii
Changes to This Document vii
Obtaining Documentation and Submitting a Service Request vii
CHAPTER 1 New and Changed ROMMON Features 1
New and Changed Features in ROMMON 1
CHAPTER 2 ROM Monitor Overview 3
Information About ROM Monitor 3
Entering ROM Monitor Mode 5
Prerequisites 5
Resetting the Configuration Register and Reloading a RSP Card to ROM Monitor Mode 6
Verifying the Router State: Example 8
Placing the RSP Cards in ROM Monitor Mode: Example 8
Manually Halting the Initialization Process During System Reload 9
ROM Monitor Commands 9
Commonly Used ROM Monitor Commands 9
Displaying the Available ROM Monitor Commands 11
Displaying the Available ROM Monitor Commands: Examples 11
Changing the ROM Monitor Prompt 12
Displaying the Configuration Register Setting 12
Environment Variables 12
Frequently Used Environmental Variables 13
Displaying Environment Variable Settings 14
Entering Environment Variable Settings 15
Saving Environment Variable Settings 15
Clearing Environment Variable Settings 15
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Viewing Chassis Serial Numbers 15
Exiting ROM Monitor Mode 16
Resetting the Configuration Register Using Prompts 16
Resetting to EXEC Mode or MBI Validation Mode 17
Exiting ROM Monitor Mode: Examples 17
Attaching to Primary RSP from Standby RSP 18
Additional References 19
CHAPTER 3 Router Recovery with ROM Monitor 21
Information About Router Recovery 21
About ROMMON Installation Files 22
Locating Installable Files 22
tar Filenames and Version Numbers 23
vm Filenames and Version Numbers 24
About the TURBOBOOT Variable 25
About the Boot Device (Destination Disk) 26
Reinstalling Cisco IOS XR Software on Cisco ASR 9000 Series Router 27
Cisco ASR 9000 Series Router Router Installation Overview 27
Installation from a TFTP Server 27
Reinstalling to a CiscoASR 9000 SeriesRouter from a TFTP Server Image 28
Reinstalling to a Cisco ASR 9000 Series Router from a TFTP Server Image 28
Reinstalling to a Cisco ASR 9000 Series Router from a TFTP Server Image:
Example 33
Installing Cisco IOS XR Software on Cisco ASR 9000 Series Router from a USB
Drive 34
What to Do Next 36
Additional References 36
Related Documents 36
Technical Assistance 37
CHAPTER 4 Managing Configuration Files in ROM Monitor 39
Information about Configuration Files 39
Specifying an Alternative Administration Configuration 40
Specifying a Temporary Alternative Administrative Configuration with the -o Boot
Option 40
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Specifying a Permanent Alternative Administrative Configuration File with the
IOX_ADMIN_CONFIG_FILE= Variable 43
Specifying an Alternative SDR Configuration 46
Specifying a Temporary SDR Configuration File with the -a Boot Option 47
Specifying a Permanent SDR Configuration File with the IOX_CONFIG_FILE= Variable 50
Specifying an Alternate Storage Location for Configuration Files 53
Additional References 56
CHAPTER 5 Password Recovery in ROM Monitor Mode 57
Information About Password Recovery 57
Recovering the Root Password on Single-RSP Routers 57
Recovering the Root Password on Redundant-RSP Routers 59
Bypassing ksh Authentication 60
Additional References 61
CHAPTER 6 Upgrading and Downgrading ROM Monitor Firmware 63
Information About ROM Monitor Firmware 63
ROMMON A and ROMMON B 64
Upgrading or Downgrading a Single Node or All Nodes 64
Reloading Nodes After a ROMMON Firmware Change 64
Upgrading or Downgrading ROM Monitor Using the FPD PIE 65
Troubleshooting Tips 68
ROM Monitor Upgrades: Examples 69
ROM Monitor Upgrade: Example 69
Graceful Reload of a Cisco ASR 9000 Series Router: Example 72
Additional References 75
CHAPTER 7 Image Refresh Using the Archive and Restore Feature 77
Information About Image Refresh 77
Prerequisites 78
Archiving Cisco IOS XR Image on a Local Disk 78
Archiving Cisco IOS XR Image on a Local Disk: Example 79
Restoring Cisco IOS XR Image from the local device 80
Restoring Cisco IOS XR Image from the Local Device: Example 82
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Preface
From Release 6.1.2 onwards, Cisco introduces support for the 64-bit Linux-based IOS XR operating system.
Extensive feature parity is maintained between the 32-bit and 64-bit environments. Unless explicitly marked
otherwise, the contents of this document are applicable for both the environments. For more details on Cisco
IOS XR 64 bit, refer to the Release Notes for Cisco ASR 9000 Series Routers, Release 6.1.2 document.
The Cisco ASR 9000 Series Aggregation Services Router ROM Monitor Guide preface contains these
sections:
•Changes to This Document, page vii
•Obtaining Documentation and Submitting a Service Request, page vii
Changes to This Document
This table lists the technical changes made to this document since it was first printed.
Change SummaryDateRevision
Republished with documentation
updates for Cisco IOS XR Release
5.1.1.
January 2014OL-30420-02
Initial release of this document.September 2013OL-30420-01
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service
request, and gathering additional information, see What's New in Cisco Product Documentation.
To receive new and revised Cisco technical content directly to your desktop, you can subscribe to the What's
New in Cisco Product Documentation RSS feed. RSS feeds are a free service.
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Preface
Obtaining Documentation and Submitting a Service Request

CHAPTER 1
New and Changed ROMMON Features
This table summarizes the new and changed feature information for the Cisco ASR 9000 Series Aggregation
Services Router ROM Monitor Guide, and tells you where they are documented.
For a complete list of new and changed features in Cisco IOS XR Software, Release 5.1.x, see the New and
Changed Features in Cisco IOS XR Software, Release 5.1.x for Cisco ASR 9000 Series Aggregation Services
Router document.
•New and Changed Features in ROMMON, page 1
New and Changed Features in ROMMON
Where DocumentedIntroduced/Changed in ReleaseDescriptionFeature
Upgrading and Downgrading
ROM Monitor Firmware
chapter:
•Information About ROM
Monitor Firmware , on
page 63
Refer Software/Firmware
Compatibility Matrix
information at http://
www.cisco.com/web/
Cisco_IOS_XR_Software/
index.html link, for details of
minimum ROMMON
requirements.
Release 5.1.1Minimum ROMMON version
for ASR9001 is 2.03
ROMMON version for
ASR9001
ROM Monitor Overview
chapter:
•Environment Variables,
on page 12
Release 5.1.1Describes the environment
variable setting needed for
Virtualized Service Module
(VSM) Service Card
Environment variable setting
for Virtualized Service Module
(VSM) Service Card
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Where DocumentedIntroduced/Changed in ReleaseDescriptionFeature
NARelease 5.1NANo new features in this release
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New and Changed ROMMON Features
New and Changed Features in ROMMON