-b -L seems ineffective

[ebsf1]

I'm debugging a systemd-boot installation on a multiboot machine with several Ubuntu 20.04 and 22.04 instances on discrete partitions.

The system has several boot entries with similar labels ("ubuntu"), so relabeling them distinctly would be helpful.

I tried, e.g.,

# efibootmgr -b 3 -L debian

and variations (0003, "debian") but none had any effect.

The command syntax is entirely consistent with the documentation / README although it is not cited in any example.

Otherwise, the kernel seems suitably configured because:

# cat config-5.15.0-37-generic | grep -i efivar

returns:

CONFIG_EFIVAR_FS=y

I also can change Timeout.

So, this is either a bug, question, feature request, or ambiguous documentation. Unless I have the syntax wrong (and if so, PLMK), one of either the code or documentation probably requires revision.

[eoli3n]

efibootmgr is unmaintained, just to let you know to not wait any answer