in your file name indicates the file is digitally signed by Cisco for security and integrity, ensuring it hasn't been tampered with before installation. Installation Tips for the 8.6.2 Bootable ISO Check Your Hardware:
The .sgn extension indicates the file is a – typically a modified ISO 9660 image with a detached or embedded PKCS#7 signature. Bootable UCSInstall UCOS UNRST 8.6.2.10000-14.sgn.161
Here is the development guide for deploying this image. in your file name indicates the file is
: Access the Cisco Unified OS Administration portal, navigate to Software Upgrades > Install/Upgrade , and point to the location of this file. navigate to Software Upgrades > Install/Upgrade