I have a computer with two different Debian operating systems installed on it. I usually use the first installed one, but I'm not able to correctly set up grub to use that as the default option: every time I turn on my computer, the second installation on Debian is selected.
- I tried to set the option
/etc/default/grubto 2 (as the first installed operating system is the third on the grub list). It did not work.
- I tried to set
GRUB_SAVEDEFAULT=true. It did not work too.
EDIT: In both cases I run
sudo update-grub after the editing.
I've run out of ideas and "duckduckgoing" for the problem does not help me.
Thanks in advance.