> -----Original Message-----
> From: CentOS [mailto:centos-boun...@centos.org] On Behalf Of Johnny
> Hughes
> Sent: den 21 februari 2018 18:03
> To: centos@centos.org
> Subject: Re: [CentOS] CentOS 7 1708 won't boot after grub2 update
> 
> On 02/21/2018 12:44 AM, Sorin Srbu wrote:
> >> -----Original Message-----
> >> From: CentOS [mailto:centos-boun...@centos.org] On Behalf Of Warren
> >> Young
> >> Sent: den 20 februari 2018 17:01
> >> To: CentOS mailing list <centos@centos.org>
> >> Subject: Re: [CentOS] CentOS 7 1708 won't boot after grub2 update
> >>
> >> On Feb 19, 2018, at 5:00 AM, Sorin Srbu <sorin.s...@ilk.uu.se> wrote:
> >>>
> >>> This is the third fresh install of CentOS 7 1708 the last two months that
> >>> won't boot after a regular "yum update" just after the fresh install has
> >>> finished.
> >>
> >> Define “won’t boot”.  Does it stop:
> >>
> >> 1. Before the GRUB2 screen?
> >> 2. Between the GRUB2 screen and root device mount?
> >> 3. After root device mount but before entering runlevel 5?
> >> 4. Something else?
> >
> > Not really sure.
> > A few times the screen just went black after the grub menu, a few times it
> stuck waiting on Plymouth to quit.
> >
> > As for a screenshoot, I'll see if I can find another unused box to try
> reproducing this on. Don't want to mess up this particular machine.
> 
> 
> This sounds like some kind of graphics card issue .. if you see any text
> that says 'booting CentOS' or a line at the bottom or the '7' grey boot
> screen, you are past the Grub2 stage.
> 
> Are these machines running X windows and a Desktop Environment.
> 
> If I had to guess, this is an AMD graphics issue .. or possibly another
> brand of card.

Thanks for the feedback.

No gray 7-boot screen. Might be a graphics issue, the card is a Nvidia 1060 
with no particular drivers loaded except for the default Nouveau package.
What's weird is that I can't even get a CLI login screen with ctrl-alt-Fx at 
this point.

Will continue trouble-shooting and see if I can resolve this properly.

//Sorin
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