Installation guide

Configuration Tasks
14
Cisco IOS 11.2(15)GS2
Note We recommend that you maintain identical files in the primary and secondary Flash devices.
Although not strictly required, this simplfies boot image management because both the primary and
secondary Flash devices contain the same sets of system image files.
Configure the GRPs to Boot Different Images
In the next task, you configure the primary and secondary GRP to boot different system images. The
task steps assume that the primary GRP is installed in card slot 1 and the secondary GRP is installed
in card slot 2.
Perform the following task, beginning in privileged EXEC mode:
You can verify that the different boot files are configured for each GRP by using the show boot
EXEC command, as follows:
router# show boot
BOOT variable = slot0:image1,1;
....
Secondary BOOT variable = slot0:image2,1;
....
Managing The Primary and Secondary GRP Task List
The tasks in the following sections show how to manage the primary and secondary GRPs. You can
select and deselect a preferred primary GRP, and configure the router for single-GRP operation.
These tasks are optional:
• Configure A Preferred Primary
• Remove a Preferred Primary Configuration
• Revert to Single GRP Operation
Step 5 Continue using the copy tftp command to copy the
next set of system images into the primary and
secondary Flash devices.
copy tftp slot0:image2
copy tftp sec-slot0:image2
Task Command
Step 1 Confirm that both GRP cards are operating and the
primary GRP is in redundancy mode. Look for the
following line of output:
Auto synch: startup-config
show redundancy
Step 2 Enter global configuration mode. configure terminal
Step 3 Configure the primary GRP (installed in slot 1) to
boot image1.
hw-module slot 1 boot system flash
slot0:image1
Step 4 Configure the secondary GRP (installed in slot 2)
to boot image2.
hw-module slot 2 boot system flash
slot0:image2
Step 5 Exit configuration mode. end
Step 6 Copy the configuration changes to the startup
configuration.
copy running-config startup-config
Task Command