[CentOS] - problem with reboot or shutdown

Mon Dec 17 19:38:20 UTC 2012
Eliezer Croitoru <eliezer at ngtech.co.il>

On 12/17/2012 9:13 PM, m.roth at 5-cent.us wrote:
> Do you mean you see the grub menu? Has it come all the way up? Do you have
> it coming up in runlevel 5? In the last case, you might have a problem
> with X.
>> >
>> >I solve the problem by turn off/on the machine a couple of times
> VERY MUCH not a good solution. You might consider talking to the vendor
> about warranty support.
>        mark

He wrote it's after grub which means it's something else and the basic 
thing is to disable any LOGO and post screens on centos to see if there 
is a basic output from the kernel while starting up the system.
it might hang a bit On a specific stage and will show it in the logs 
after a successful boot.

How about network activity during this black screen time?