[CentOS] UEFI boot blank screen post update

On 31.07.20 04:52, Greg Bailey wrote:
m running CentOS 8.2 on an Intel NUC, and also hit this this morning. 
> The way I was able to workaround this was to copy grub2-* and shim-*
> RPMs from the CentOS 8.2 installation media and use "rpm -Uvh grub2-*
> shim-* --oldpackage".  The subsequent reboot worked normally.  The
> versions of those packages on the 8.2 installation media was the same as
> what I had installed immediately before this morning's upgrade.

There is also a a Redhat knowledge base article regarding this issue.

https://access.redhat.com/solutions/5272311

Best regards
Ulf