Here’s a weird one:
Ever since installing the kernel-default-4.4.87-25.1 update, grub is unable to boot the default kernel. That is, once the grub main menu appears, if I let grub boot the default kernel (no keyboard interaction…just let the grub timer expire), the screen immediately goes black and the system reboots.
If I simply press <enter> at the grub main menu, everything boots fine. In principle, this should be the same kernel that failed to boot above…
I can also navigate to the grub advanced boot menu and all of those selections seem to work as well. It’s only if I let grub timeout and boot the default kernel with no interaction that the system reboots.
Anybody seen this or know where to poke?