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Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Appendix A ROM Monitor Guide
Reinstalling the Cisco IOS XR Software from ROMMON
Table A-3 Easybake Variables and Descriptions
Locating Installable Files
To obtain Cisco IOS XR software and version information, use the Cisco IOS XR Software Selector tool
on the following website:
http://www.cisco.com/cgi-bin/Software/IOXPlanner/planner-tool/ioxplanner.cgi?
The Cisco IOS XR Software Selector tool allows you to browse for your software upgrade from a single
interface. You can display and select software by package name, release, and platform. The tool also
includes posting images and extensible markup language (XML) schemes. Choosing a platform, release,
or software feature automatically limits the choices based on your selection, until you arrive at your
preferred software.
The files that you can install from ROMMON are files with the .vm filename extension. These files are
offered as single files and as part of file bundles compressed in files with .tar filename extensions (using
the UNIX tar utility). When you download a compressed tar file, you must decompress the tar file with
a software program before you can install any .vm files in the compressed package.
Note PIE files with .pie filename extensions cannot be installed from ROMMON and must be installed from
EXEC mode. Some tar files contain both PIE files and .vm files. When the tar files contain both file
types, install the .vm file first, then install the PIE files after the router enters EXEC mode as described
in Chapter 6, “Managing Cisco IOS XR Software Packages.”
Variable Purpose Description
0x100000001 “Cleans” disk0: Used on the primary RP only. This setting manages ROM monitor
software installations as follows:
• Cleans disk0:. The current software packages are replaced with
the new packages. Other files, such as configurations, are
preserved.
• When the router is restarted, all Easybake settings are reset so that
Easybake does not run on the next restart.
0x100100001 Formats disk0: Used on the primary RP only. This setting manages ROM monitor
software installations as follows:
• Formats disk0:. The entire internal flash disk is formatted before
the new software packages are installed. All existing software and
configurations are deleted.
• When the router is restarted, all Easybake settings are reset so that
Easybake does not run on the next restart.
Caution This option deletes all software and configurations on
disk0:. To preserve the current router configuration, copy it
to another disk while still in EXEC mode. See the
“Configuration History and Rollback” section on page 2-23
for more information.