At 12:50 PM 8/1/2020, Kay Schenk wrote:
Totally and completely on my HP microfiber. Wouldn't get past anything to even get me into the grub menu. NOT AMUSED!
Kay Schenk
I was going to confirm the same, but the system that became unbootable was my mail system :-(
Apparently, the SHIM/GRUB bug has hit both Centos 7 and 8.
Too bad Ubuntu is enough different that makes it hard to switch.
David