/mcpStep 12 Repeat this procedure to generate answer files for the IM and Presence Service cluster. Generate ISO Images Use this procedure to create ISO images from the answer files. You will use the ISO images in your touchless installation. This procedure describes how to use WinImage to create ISO images. You can download WinImage from https://www.winimage.com/download.htm. Note Procedure Step 1 From WinImage, choose File > New. Step 2 From the Standard format, choose 1.44 MB and click OK. Step 3 Navigate to the Menu Image, choose Inject, and select the platformConfig.xml and the clusterConfig.xml file for the Unified CM Publisher node. For Unified CM Subscriber, IM and Presence Publisher and Subscriber, choose Inject, and select the platformConfig.xml file only. Step 4 When prompted to inject the file into WinImage, click Yes. Step 5 Choose File > Save As. Step 6 Choose All files from the drop-down for the Save as type and specify the file name as an ISO image (with .iso file extension, for example imagename.iso) using the following naming conventions: • Unified Communications Manager—ucm.iso • IM and Presence Service—imp.iso Step 7 Repeat these steps for both the Unified Communications Manager cluster and the IM and Presence Service cluster. Upload ISO Image to Nutanix Cluster Create ISO images for the Unified CM publisher and subscribers based on the generated answer file, and upload the <cucm_answer_file>.iso for the publisher and subscribers to the Nutanix clusters. In case of manual installation of Unified CM, the second CD-ROM does not need to be mounted with the <cucm_answer_file>.iso file. Procedure Step 1 Download the desired version of the Unified CM bootable .iso image from the Cisco.com to your local machine. Step 2 Log in to Nutanix Prism Central or Prism Element with your credentials. Step 3 In the top-right corner of the Nutanix Prism Central page, click the three-line menu icon. Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs 71 Installation Methods Generate ISO Images