Phoning it in – Deploying CUCM - The Packet Thrower's Blog
Before mounting your ISO, ensure you have deployed the correct OVA template for CUCM 8.x in your virtualization environment. The OVA sets the necessary hardware parameters (CPU, RAM, and Disk). bootable ucsinstall ucos unrst 8621000014sgn161
The file is a restricted (non-bootable) upgrade image for Cisco Unified Communications Manager (CUCM) . To make it bootable for a fresh installation or recovery, you typically need to use a third-party tool like UltraISO to extract and re-insert the boot sector. Conversion Process (Summary) Phoning it in – Deploying CUCM - The
: Save the modified file as a new ISO. It should now show as "Bootable" in the top bar of the application. Critical Considerations To make it bootable for a fresh installation
If the problem persists after following this guide, contact Cisco TAC and reference:
: While standard upgrade ISOs are non-bootable and only for existing systems, a "bootable" version allows for a fresh installation on a new virtual machine or bare-metal server. Unrestricted Status (UNRST) : Once a system is installed using a UNRST release, it cannot be converted