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