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D-11
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Appendix D Upgrading, Downgrading, and Installing System Images
Recovering the Application Partition
Recovering the Application Partition
You can recover the application partition image for the sensor if it becomes unusable. Some network
configuration information is retained when you use this method, which lets you have network access
after the recovery is performed. Use the recover application-partition command to boot to the recovery
partition, which automatically recovers the application partition on your sensor. If you have upgraded
your recovery partition to the most recent version before you recover the application partition image,
you can install the most up-to-date software image.
Because you can execute the recover application-partition command through a Telnet or SSH
connection, we recommend using this command to recover sensors that are installed at remote locations.
Note
When you reconnect to the sensor after recovery, you must log in with the default username and
password cisco.
Recovering the Application Partition Image
To recover the application partition image, follow these steps:
Step 1
Download the recovery partition image file to an FTP, HTTP, or HTTPS server that is accessible from
your sensor.
Step 2
Log in to the CLI using an account with administrator privileges.
Step 3
Enter configuration mode.
sensor# configure terminal
Note
To upgrade the recovery partition the sensor must already be running IPS 7.1(3)E4.
Step 4
Recover the application partition image.
sensor(config)# recover application-partition
Warning: Executing this command will stop all applications and re-image the node to
version 7.1(2)E4. All configuration changes except for network settings will be reset to
default.
Continue with recovery? []:
Step 5
Enter yes to continue. Shutdown begins immediately after you execute the recover command. Shutdown
can take a while, and you will still have access to the CLI, but access will be terminated without warning.
The application partition is reimaged using the image stored on the recovery partition. You must now
initialize the sensor with the setup command.The IP address, netmask, access lists, time zone, and offset
are saved and applied to the reimaged application partition. If you executed the recover
application-partition command remotely, you can SSH to the sensor with the default username and
password (cisco/cisco) and then initialize the sensor again with the setup command. You cannot use
Telnet until you initialize the sensor because Telnet is disabled by default.