Cisco ASR 9000 Series Configuration Manual page 38

Reinstalling to a CiscoASR 9000 SeriesRouter from a TFTP Server Image
DETAILED STEPS
Command or Action
Step 1
Back up the router configuration while still in EXEC mode.
Step 2 Verify the sanity of the configuration file system. Use cfs
check
Example:
RP/0/RSP0/CPU0:router# cfs check
Step 3 admin
Example:
RP/0/RSP0/CPU0:router# admin
Step 4 Place all RSP cards in ROM Monitor mode. Use
config-register boot-mode rom-monitor location all and
reload location all commands.
Example:
RP/0/RSP0/CPU0:router(admin)# config-register
boot-mode rom-monitor location all
RP/0/RSP0/CPU0:router(admin)# reload location all
Step 5 Clear the ROM Monitor environmental variables on all
RSP cards. Use unset BOOT command, unset
TFTP_FILE command and sync command.
Example:
rommon B1> unset BOOT
rommon B2> unset TFTP_FILE
rommon B3> sync
Cisco ASR 9000 Series Aggregation Services Router ROM Monitor Configuration Guide, Release 5.1.x
30
Purpose
(Optional) To preserve the current router configuration, copy it
to another disk while still in EXEC mode.
(Optional) Verifies the sanity of the router configuration, and
resolves any internal inconsistencies.
• This step is necessary only to preserve the router
Note
configurations (if TURBOBOOT variable is set
to clean). If TURBOBOOT variable is set to
format, then the disk is erased and the existing
configurations are deleted. The default option is
clean.
Enters the admin EXEC mode.
Ensures that all RSP cards in the system are prepared for
installation using the TURBOBOOT variable. Repeat for each
RSP card in the system (LCC).
Enter the settings exactly as shown. You must attach a terminal
to each card for this procedure.
All variable names are case sensitive.
• Clears the BOOT variable.
• Clears the TFTP_FILE variable.
• Saves the changes.
• If the unset command displays an error
Note
message, it is most likely because the
variable you are trying to change is not set.
If this is the case, ignore the message and
continue.
Router Recovery with ROM Monitor
OL-30420-01