I'm running Fedora 31 and when I installed it (F29) I added the option
/etc/default/grub. Now I wanted to remove that option but found the file like this:
GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="" GRUB_DISABLE_RECOVERY="true" GRUB_ENABLE_BLSCFG=true
I remember there have been many more options like
rd.luks.uuid which luckily still are in
/boot/efi/EFI/fedora/grub.cfg but I can't find them anywhere else.
I think things might have changed since the upgrade to F30 or F31. Also I noticed that
GRUB_ENABLE_BLSCFG=true might mean that things are done different now. I read that I shouldn't use
grub2-mkconfig any more but grubby to change kernelopts. But I fear to loose all my kernelopts which I think are important.
So what is the correct way to handle this?