[CentOS] Black screen after install / Centos 7.2

Mon May 16 17:49:53 UTC 2016
Oliver Zemann <oliver.zemann at gmail.com>

X is not installed. I removed rhgb and quiet and replaced that with 
nomodeset, now i can boot. I am just wondering why the rescue/diagnostic 
mode did not help me in this case and turned black too. And i wonder 
what i have to do to boot without nomodeset.

Am 16.05.2016 um 16:45 schrieb m.roth at 5-cent.us:
> Earl A Ramirez wrote:
>> On 16 May 2016 12:13, "Oliver Zemann" <oliver.zemann at gmail.com> wrote:
>>> Hi, i just installed CentOS 7.2 on my little "server" but i get a black
>> screen during boot. It is a Asrock Am1h-itx mainboard with an AMD 5350 CPU
>> (onboard graphic).
>>> I created a raid 6 but i dont think thats the problem, as the boot
>> process goes pretty far. I would even say its going until X should start,
>> but it is a server install, so i guess there is no X.
>>> Can someone tell me what could i do to get more information? Is there
>> some kind of nomodeset param available for the grub cmd line param which i
>> could try?
>> Yes you can use nomodeset, are you able to boot with the diagnostic kernel
>> which has minimum display requirement?
> I'd also suggest several things:
> 1. If it's a server, why do you need X?
> 2. If you do, then I'd start out by having it come up in runlevel 3, *not* 5,
>       and then as root I'd run startx, and see what error messages there are.
>       Doing this gives you a much more controlled environment in which to
>       debug the X issues.
> 3. One final thought: what do you get when you do yum grouplist - what
>       X or Desktop groups are installed?
>          mark
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