CentOS

Issue when rebooting VMWare machine running Centros 6 machine hangs

does anybody have any proposals to overcome this issue

That error usually means that the initrd is missing or broken.
You can try rebuilding it, or boot an older kernel and un-install and re-install the failed kernel.

Also, that kernel is from 6.4 which is from early 2013 and highly insecure and riddled with bugs. Run `yum update` ASAP to get up to date.