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Does grub2 have a means of selecting a menu entry by a unique label instead of the current numbering system which results in commands like grub-reboot '1>3', GRUB_DEFAULT="1", GRUB_DEFAULT="1>3"?

What I have in mind are more line the UUIDs used for selecting partitions to boot from, rather than expressions like (hd0,1), (hd1,1) etc. I would prefer to enter random UUIDs in the menu entries and use GRUB_DEFAULT="MENUID=2XDR" rather than numbered entries which are hard to compute?

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Set the exact name from the menuentry as GRUB_DEFAULT, for example Ubuntu, with Linux 4.4.0-62-generic (upstart), see:

perl -lne "print \$1 if /menuentry '(.*?)'/" /boot/grub/grub.cfg
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  • Debian has a habit of using duplicate names for different installations of the same OS even if they are different versions. I want to use the UUID of the root partition for GRUB_DEFAULT as it is bound to be unique.
    – vfclists
    Jul 14 '19 at 4:49

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