Cisco CRS-1 - Carrier Routing System Router Getting Started Manual page 232

Reinstalling the Cisco IOS XR Software from ROMMON
Command or Action
Step 4
On the primary RP, clear the TFTP filename variable and set
the Easybake variable:
unset BOOT
a.
unset TFTP_FILE
b.
EASYBAKE=variable
c.
sync
d.
Example:
rommon B1> EASYBAKE=0x100000001
rommon B1> sync
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
A-22
Appendix A
Purpose
Caution The Easybake variable determines how
the software is reinstalled on your router.
Enter one of the two options exactly as
shown.
Clears the BOOT variable.
a.
Clears the TFTP_FILE variable.
b.
Sets the EASYBAKE variable.
c.
EASYBAKE variable options are:
0x100000001: Cleans disk0:. The current
–
software is deleted and replaced with new
packages. Other files, such as user
configurations, are preserved.
0x100100001: Formats disk0:. The entire
–
internal flash disk is formatted before the
new software packages are installed. All
existing software and configurations are
deleted.
d. Saves the configuration.
The option to format disk0: will delete all
Caution
router configurations. 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
ROM Monitor Guide