Document ID: UC-INSTALL-2023-042
Subject: Bootable Installation of Cisco Unified Communications Manager (Unrestricted)
Installation String Reference: bootable ucsinstall ucos unrst 8621000014sgn161 patched
This is the standard procedure for deploying the ucsinstall ISO. bootable ucsinstall ucos unrst 8621000014sgn161 patched
This document outlines the deployment procedure for a Cisco Unified Communications Manager (CUCM) node using a specific bootable ISO image. The installation utilizes the "unrestricted" version of the software, designated by the unrst tag, and includes integrated patches up to a specific Cisco Engineering Special. This installation method is typically used for fresh deployments on Unified Computing System (UCS) hardware or virtualized environments where the base ISO needs to be modified prior to installation. Reboot and monitor console for errors
Some patched ISOs use alternative commands. Try: Reboot and monitor console for errors.
Insert the bootable media created from the ucsinstall image. Upon boot, the installer initializes the Linux kernel and loads the ucos installation environment.
| Symptom | Likely Cause | Solution |
|---------|--------------|----------|
| USB not booting | Secure Boot enabled | Disable Secure Boot in BIOS |
| Boot failed message | Incorrect ISO write | Re-write USB using dd or Rufus in DD mode |
| UCOS unreset hangs at 30% | Corrupted patch | Re-download ISO and verify checksum |
| Signature verification failed | Patch not applied correctly | Confirm ISO filename contains patched; rebuild from trusted source |
If you prefer not to embed the patch into the ISO, you can boot the standard UCSInstall image, drop to a shell, then: