Installation guide

Verify and Update Cisco IOS Software on Secondary GRP
GRP Redundant Processor Support 13
Verify and Update Cisco IOS Software on Secondary GRP
After the system boots with the software that supports GRP redundancy, you can verify and update
the Cisco IOS software on the secondary GRP. Perform the following task, beginning in privileged
EXEC mode:
Configuring Software Error Protection Task List
To configure software error protection, the primary GRP and the secondary GRP run different images.
Complete the tasks in the following sections to configure the primary and secondary GRP to run the two
selected images. You must have two GRPs installed in the router and they must be running
identical images.
Refer to “Installing Second GRP and Configuring Hardware Backup Task List,” earlier in this
publication.
This feature is not required for normal GRP operations.
Complete the tasks in the following list to configure different images on the primary and secondary
GRP. The first two tasks are required.
• Copy the System Images to Flash Devices
• Configure the GRPs to Boot Different Images
Copy the System Images to Flash Devices
To copy system images to Flash devices, perform the following task, beginning in privileged EXEC
mode:
Task Command
Step 1 List the contents of the bootflash on the
secondary GRP.
If the image supports GRP redundancy, no
further action is needed. (See Table 1.)
Otherwise, continue to the next step.
dir sec-bootflash
-----date/time------ name
Oct 11 1998 19:07:25 gsr-boot-mz.112-15GS2
Step 2
Remove the existing boot image from the
primary GRP.
delete bootflash:gsr-boot-mz.112-14GS1
Note The image filename, gsr-boot-mz.112-14GS1, is
used as an example.
Step 3 Reclaim space on the primary bootflash device. squeeze sec-bootflash:
Step 4 Copy a replacement Cisco IOS software image
to the secondary bootflash device.
copy tftp sec-bootflash:gsr-boot-mz.112-15GS2
Note The image filename, gsr-boot-mz.112-15GS2, is
used as an example.
Task Command
Step 1 Copy a system image from the TFTP server to the
primary GRP Flash device located in the GRP
PCMCIA slot 0.
copy tftp slot0:name1
Step 2 Specify the TFTP source file, in response to the
Enter source file name: prompt.
Enter source file name:
my_file_system/ image1
Step 3 Confirm that the copy should proceed.
13444284 bytes available on device
slot0, proceed? [confirm] y
Step 4
Copy the system image from the TFTP server to
the secondary GRP Flash device located in the
secondary GRP PCMCIA slot 0.
copy tftp sec-slot0:image1