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Cisco Intrusion Prevention System CLI Sensor Configuration Guide for IPS 7.1
OL-19892-01
Chapter 22 Upgrading, Downgrading, and Installing System Images
Upgrades, Downgrades, and System Images
• During a signature upgrade all signature configurations are retained, both the signature tunings as
well as the custom signatures. During a signature downgrade the current signature configuration is
replaced with the old signature configuration. So if the last signature set had custom signatures
and/or signature tunings, these are restored during the downgrade.
• All user configuration settings are lost when you install the system image. Before trying to recover
the sensor by installing the system image, try to recover by using the recover application-partition
command or by selecting the recovery partition during sensor bootup.
For More Information
• For the procedure for accessing downloads on Cisco.com, see Obtaining Cisco IPS Software,
page 21-1.
• For the procedure for using the upgrade command to upgrade the sensor, see Upgrading the Sensor,
page 22-4.
• For the procedure for configuring automatic upgrades on the sensor, see Configuring Automatic
Upgrades, page 22-8.
• For the procedure for using the recover command, see Recovering the Application Partition,
page 22-12.
• For the procedure for installing the IPS 4240 and IPS 4255 system image, see Installing the System
Images for the IPS-4240 and IPS-4255, page 22-15.
• For the procedure for installing the IPS 4260 system image, see Installing the System Image for the
IPS 4260, page 22-18.
• For the procedure for installing the IPS 4270-20 system image, see Installing the System Image for
the IPS 4270-20, page 22-20.
• For the procedure for installing the IPS 4345 and IPS 4360 system image, see Installing the System
Image for the IPS 4345 and IPS 4360, page 22-22.
• For the procedure for installing the IPS 4510 and IPS 4520 system image, see Installing the System
Image for the IPS 4510 and IPS 4520, page 22-26.
• For the procedure for installing the ASA 5500 AIP SSM system image, see Installing the System
Image for the ASA 5500 AIP SSM, page 22-28.
• For the procedure for installing the ASA 5500-X IPS SSP system image, see Installing the System
Image for the ASA 5500-X IPS SSP, page 22-31.
• For the procedure for installing the ASA 5585-X IPS SSP system image, see Installing the System
Image for the ASA 5585-X IPS SSP, page 22-32.
Upgrades, Downgrades, and System Images
Caution You cannot use the downgrade command to revert to a previous major or minor version, for example,
from Cisco IPS 7.1 to 7.0. You can only use the downgrade command to downgrade from the latest
signature update or signature engine update. To revert to 7.0, you must reimage the sensor.
Note You cannot downgrade the sensor using the recovery partition. To downgrade to an earlier version, you
must install the appropriate system image file (.img file).