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Upgrading the Cisco Secure Access Control System 5.5

You can use the following upgrade paths to upgrade the ACS server from 5.x versions to ACS 5.5:

• Path 1: ACS 5.4 to ACS 5.5. To upgrade from ACS 5.4 to 5.5, see Upgrading an ACS Server from

5.4 to 5.5, page 11-11.

• Path 2: ACS 5.3 to ACS 5.5. To upgrade from ACS 5.3 to 5.5, see Upgrading an ACS Server from

5.3 to 5.5, page 11-15.

• Path 3: ACS 5.0/5.1/5.2 to ACS 5.3/5.4 to ACS 5.5. To upgrade from 5.0/5.1/5.2 to ACS 5.3, see

the Installation and Upgrade Guide for Cisco Secure Access Control System 5.3. To upgrade from

5.0/5.1/5.2 to ACS 5.4, see the Installation and Upgrade Guide for Cisco Secure Access Control

System 5.3.

Note When you upgrade from ACS 5.3 to ACS 5.5, you must install patch 8 or a subsequent patch before you

start upgrading to ACS 5.5.

Note If you want to upgrade the ACS installed on a virtual machine to ACS 5.5, the virtual machine disk size

should be greater than or equal to 500 GB

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