At Sun, 2 Aug 2020 06:59:06 -0500 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
>
>
> On 8/2/20 2:04 AM, Alessandro Baggi wrote:
> >
> > Il 01/08/20 22:03, Greg Bailey ha scritto:
> >> On 8/1/20 6:56 AM, david wrote:
> >>> At 02:54 AM 8/1/2020, Alessandro Baggi wrote:
> >>>> Hi Johnny,
> >>>> thank you very much for clarification.
> >>>>
> >>>> You said that in the centos infrastructure only one server got the
> >>>> problem.
> >>>> What are the conditions that permit the breakage? There is a particular
> >>>> configuration (hw/sw) case that match always the problem or it is
> >>>> random?
> >>>>
> >>>> Thank you
> >>>
> >>> I have two servers running Centos 7 on apple hardware (one mac-mini
> >>> and one mac server).��� They both failed to reboot a few days ago.��� So
> >>> perhaps whatever anti-boot bug hit Centos 8, also hit Centos 7.��� I
> >>> can't tell what version got updated since the system simply fails to
> >>> boot.��� I don't even get a grub screen. I'll have to rebuild the
> >>> systems from scratch.
> >>>
> >>>
> >>
> >> You should be able to boot off of installation media into rescue mode,
> >> and downgrade the grub2* and/or shim* RPMs.
> >>
> >> -Greg
> >>
> > I did the downgrade on a fresh install of c8.2 but yum said that all
> > selected packages (grub2,shim...) are already to the lowest version and
> > the downgrade is not possibile, ending with "nothing to do".
>
> Ok .. We are running through some final testing now for CentOS Linux 8
> and CentOS Stream .. updates later today for EL8.
>
> For CentOS Linux 7 .. I just pushed the latest shim packages (we had to
> get these signed by Microsoft .. as do all distros that do shim.
> Microsoft is the official CA for secureboot.
>
> So in the next few hours, after the mirrors sync up .. you should be
> able to fix any EL7 machines.
Question: is this only a problem for bare metal w/EFI or are VMs affected? I
have a VPS running CentOS 7:
sharky4.deepsoft.com% uname -a
Linux sharky4.deepsoft.com 3.10.0-1127.13.1.el7.x86_64 #1 SMP Tue Jun 23
15:46:38 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
sharky4.deepsoft.com% rpm -qa grub\* shim\*
grub2-tools-extra-2.02-0.81.el7.centos.x86_64
grub2-pc-modules-2.02-0.81.el7.centos.noarch
grub2-tools-minimal-2.02-0.81.el7.centos.x86_64
grub2-2.02-0.81.el7.centos.x86_64
grub2-tools-2.02-0.81.el7.centos.x86_64
grubby-8.28-26.el7.x86_64
grub2-common-2.02-0.81.el7.centos.noarch
grub2-pc-2.02-0.81.el7.centos.x86_64
sharky4.deepsoft.com%
I have these (pending) updates:
sharky4.deepsoft.com% sudo /usr/bin/yum check-update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.es.its.nyu.edu
* epel: mirror.math.princeton.edu
* extras: mirror.facebook.net
* updates: mirror.atlanticmetro.net
fail2ban.noarch 0.11.1-9.el7.2 epel
fail2ban-firewalld.noarch 0.11.1-9.el7.2 epel
fail2ban-sendmail.noarch 0.11.1-9.el7.2 epel
fail2ban-server.noarch 0.11.1-9.el7.2 epel
fail2ban-systemd.noarch 0.11.1-9.el7.2 epel
grub2.x86_64 1:2.02-0.86.el7.centos updates
grub2-common.noarch 1:2.02-0.86.el7.centos updates
grub2-pc.x86_64 1:2.02-0.86.el7.centos updates
grub2-pc-modules.noarch 1:2.02-0.86.el7.centos updates
grub2-tools.x86_64 1:2.02-0.86.el7.centos updates
grub2-tools-extra.x86_64 1:2.02-0.86.el7.centos updates
grub2-tools-minimal.x86_64 1:2.02-0.86.el7.centos updates
kernel.x86_64 3.10.0-1127.18.2.el7 updates
kernel-headers.x86_64 3.10.0-1127.18.2.el7 updates
kernel-tools.x86_64 3.10.0-1127.18.2.el7 updates
kernel-tools-libs.x86_64 3.10.0-1127.18.2.el7 updates
python-perf.x86_64 3.10.0-1127.18.2.el7 updates
Is it "safe" for me to to do a yum update or should I wait?
>
> I'll post here again once we have pushed the EL8 and CentOS Stream updates.
>
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