[CentOS] Updating microcode_ctl froze Centos7

Fri Jun 12 08:42:47 UTC 2020
Robin Lee <robinlee at mailbox.org>

On Fri, 2020-06-12 at 10:24 +0200, Tru Huynh wrote:
> On Fri, Jun 12, 2020 at 09:20:34AM +0200, Robin Lee wrote:
> > Today when I ran yum update two packages came up microcode_ctl
> > and unbound-libs. The updating process went fine until it
> > outputted 
> > 
> > Running transaction
> >   Updating   : 2:microcode_ctl-2.1-61.6.el7_8.x86_64
> > 
> > then it just froze. I could no longer ssh to the machine and the
> > console was just blank. I had to shut down it hard.
> 
> Maybe related to 
> https://www.hivelocity.net/blog/centos-update-advisory/
> (discarding the blame game) it might be a bad combination of
> kernel/microcode/bios...

Thanks for the link. Very interesting as I also have a Supermicro
motherboard. My journalctl outputs:
kernel: DMI: Supermicro Super Server/X11SSM-F, BIOS 2.2 05/23/2018

/Robin