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? Thanks
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 blackscreen 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 bootprocess 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 theresome kind of nomodeset param available for the grub cmd line param which i could try?> > Thanks > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centosYes you can use nomodeset, are you able to boot with the diagnostic kernel which has minimum display requirement?
m.roth at 5-cent.us
2016-May-16 14:45 UTC
[CentOS] Black screen after install / Centos 7.2
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
Using nomodeset worked. Diagnostic kernel did not work. Any idea what i have to do to boot without using nomodeset? Am 16.05.2016 um 15:36 schrieb Earl A Ramirez:> 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? >> Thanks >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos > Yes you can use nomodeset, are you able to boot with the diagnostic kernel > which has minimum display requirement? > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos