CentOS - Feb 2018 - CentOS 7 1708 won't boot after grub2 update

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Johnny
> Hughes
> Sent: den 21 februari 2018 18:03
> To: centos at 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-bounces at centos.org] On Behalf Of
Warren
> >> Young
> >> Sent: den 20 februari 2018 17:01
> >> To: CentOS mailing list <centos at 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.srbu at
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

> 
> 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.
> 
Edit the grub line to boot into single user and remove "rhgb" and
"quiet" so you can see all the messages. See where it stops.

I've seen issues recently with Intel chipset and RAID - a couple of my
machines have paused for a very long time after booting and before
presenting login screens/prompts. It looks as if checking the array
after a non-clean shutdown is sucking so much CPU time that nothing
else happens. (The secondary issue is why it's shutting down without
marking the array as clean!)

P.

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Pete Biggs
> Sent: den 22 februari 2018 10:02
> To: centos at centos.org
> Subject: Re: [CentOS] CentOS 7 1708 won't boot after grub2 update
> 
> 
> >
> > 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.
> >
> 
> Edit the grub line to boot into single user and remove "rhgb" and
> "quiet" so you can see all the messages. See where it stops.
> 
> I've seen issues recently with Intel chipset and RAID - a couple of my
> machines have paused for a very long time after booting and before
> presenting login screens/prompts. It looks as if checking the array
> after a non-clean shutdown is sucking so much CPU time that nothing
> else happens. (The secondary issue is why it's shutting down without
> marking the array as clean!)
Thanks!

You use xfs on these machines?

--
//Sorin