When I reboot my PBX, I am offered two OS versions. No idea how that happened. The first one (picked by default) does not work, it stops with an error message.
The second one works fine. But I need to be around to select it.
I tried to find the settings for it, but I am lost.
/boot/grub/ is empty.
/boot/grub2/ has a gub.cfg, but it says:
DO NOT EDIT THIS FILE
It is automatically generated by grub2-mkconfig using templates
from /etc/grub.d and settings from /etc/default/grub
Can’t find the settings in those files.