There is a Cisco tandberg demo lab environment in our compnay, so we are planned to upgrade the cisco call manager to 8.6 in order to make video call to tandberg VCS. The following is the detail of the hardware,
Hardware version 7825I4 with 4G ram( 4x 1G ram)
Software downloaded: UCSInstall_UCOS_126.96.36.19900-30.sgn.iso ( restricted version)
We have checked the MD5 checksum, and it is matched.
We are have tried to upgrade though either DVD or tftp-Titan, however, we still have faced some problem in upgrading the call manager.
"refresh upgrade failed- error detected is post-install phase. Trying to restore the system to the active version.Please wait..."
Can anyone face the same problem with me?