On Fri, Jan 1, 2021 at 6:26 PM Strahil Nikolov via CentOS-devel centos-devel@centos.org wrote:
I don't believe grub has ever been successfully patched to
support this: I'd welcome it if they did, though i'm not testing hardware and kernels these days.
grub-reboot — Set the default boot menu entry for the next boot only. grub-set-default — Set the default boot menu entry for GRUB.
Set the default to be latest-1 and define one time boot with latest.
Cool, I think this is new since the last time i tried to do this. It's also been a while.