Hi. On Thu, Dec 17, 2020 at 06:45:47PM -0600, David Wright wrote: > > A correction - GRUB_DISABLE_SUBMENU=true should be put into > > /etc/default/grub. > > What sort of weirdness happens? Is the problem with writing > /boot/grub/grubenv (where the strings reside), or with Grub's > reading and parsing it? I've not had any problems myself.
It's the selection of a top level menu instead of a menuentry that can happen, unless you disable submenus. While it does allow unattended boot, it does not allow the selection of an old kernel, for instance. At least, in a easy way. Reco