Rename a grub entry

[Akito]

I created a dedicated thread for discussing GRUB2 itself.

GRUB Customisation

As previously discussed. Customising GRUB2 seems to be a huge pain in the ass and the biggest buzzword in the GRUB customisation world, is obviously and undeniably Grub Customizer. Even the official GRUB manual admits, that configuration is complex and hard to do. grub-mkconfig does have some limitations. While adding extra custom menu entries to the end of the list can be done by editing /etc/grub.d/40_custom or creating /boot/grub/custom.cfg, changing the order of menu entries or chang…