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.
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