Cisco CRS-1 - Carrier Routing System Router Getting Started Manual page 228

Reinstalling the Cisco IOS XR Software from ROMMON
Command or Action
Step 5
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
Step 6 boot tftp://server/directory/filename
Example:
rommon B1> boot
tftp://223.255.254.254/softdir/comp-hfr-mini.vm
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
A-18
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.
c. Sets the EASYBAKE variable. 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.
Saves the new ROM monitor variable settings.
d.
The option to format disk0: deletes all router
Caution
configurations. To preserve the current router
configuration, copy it to another disk while
still in EXEC mode. See the
History and Rollback" section on page
Retrieves the file from the TFTP server and installs it on
disk0:.
Execute this command on the primary RP and
•
specify the .vm installation file from the TFTP
server.
This process removes any existing software
•
packages, resets the configuration register to 0x2,
and boots the system.
After the primary RP boots, the standby RP
•
downloads (synchronizes) the packages from the
primary RP and boots automatically.
• Allow the system to fully boot.
• If you chose the option to format disk0:, the router
enters Setup mode. The Setup mode prompts allow
you to enter the initial configurations as described in
the "Verifying the System After Initial Bring Up"
section on page 4-9.
If you chose the option to clean disk0:, the system is
•
fully booted when the CLI prompt is shown and the
interfaces are created.
Appendix A ROM Monitor Guide
"Configuration
2-23.