CUCM installer runs a Cisco-customized CentOS 7 installer with a GUI and hardware validation. If your hardware is not on the HCL, the installer aborts with “Unsupported platform.”
For upgrades, the process involves setting up a secure FTP (SFTP) server to hold the ISO for the upgrade wizard, as shown in this YouTube guide on CUCM upgrades . cucm 12.5 bootable iso download
You have the bootable media; now you need to boot from it. CUCM installer runs a Cisco-customized CentOS 7 installer
In this write-up, we have guided you through the process of downloading the CUCM 12.5 bootable ISO image. Ensure you meet the prerequisites and follow the steps outlined above to successfully download and verify the ISO image. If you encounter any issues during the download or installation process, don't hesitate to reach out to Cisco support for assistance. In this write-up, we have guided you through
Open the non-bootable ISO and locate the isolinux folder. Extract the isolinux.bin file.
. You will need to register the installation with the Cisco Smart Software Manager (CSSM) to keep the system operational beyond the 90-day evaluation period. hardware requirements for a CUCM 12.5 virtual machine installation?