Somehow the GRUB2 pager scrolls only about one line per 2 seconds, so it takes absolutely forever to boot after enabling the pager and debug messages. Is there any way to quit this pager when it's at the MORE prompt rather than scrolling through debug output for hours before continuing the boot process? I've tried q, Ctrl-c, End, and other random keys.
How to quit GRUB2 pager early?
grub2