Is it possible to change the name of grub boot entries discovered by os-prober?

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I’m going to have to agree that editing the grub.cfg file is probably best.

You are correct that is generated by os-prober.

Namely /etc/grub.d/30_os-prober … which is a pretty complicated file to untangle.

You could theoretically copy it and mess with the menuentry being generated. Somewhere in the lines 160-190 or so.

( also this reminds me to make a PR about the wrong classs being used, and thus missing icons * )

And your changes will be overwritten at some point, but still, if you must, then editing /boot/grub/grub.cfg is probably easiest.

You will see something like this:

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/nvme0n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-666X-1984' {
        savedefault
        insmod part_gpt
        insmod fat
        search --no-floppy --fs-uuid --set=root 666X-1984
        chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

There you can see the text used for the menuentry and you can edit to something like

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 11 (on /dev/nvme0n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-666X-1984' {
        savedefault
        insmod part_gpt
        insmod fat
        search --no-floppy --fs-uuid --set=root 666X-1984
        chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

PS

Correct classes mean more icons

[old image]

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