Editing grub boot menu, how to save?

[Ralf Mardorf]

On Sat, 30 Oct 2021 15:20:53 +0200, Bo Berglund wrote:
>I cannot reboot now because the server is busy

To see the menu names generated by

  sudo update-grub 

after whatever file{,s} you edited, run

  grep menuentry /boot/grub/grub.cfg

without rebooting. I strongly discourage to edit /etc/lsb-release or
other files that don't belong to the bootloader. There are a lot of
ways to configure grub automagically or manually or to migrate to
another boot loader. All of them come with a learning curve. However,
mangling Linux Standard Base files is a freakish approach. Don't do
that!