/boot/grub/grub.cfg is a generated file that must not be modified by hand. Instead one is supposed to modify things like /etc/default/grub /etc/default/grub.d/* /etc/grub.d/*
** Changed in: grub2 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1929854 Title: Vital and critical configuration files get overridden by system updates without warning To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1929854/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs