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by NoGravitas 3793 days ago
This really doesn't have anything to do with systemd specifically. Any init system on current linux on x86(-64) will have to deal with the efivars pseudo-filesystem (provided by the kernel), because certain utilities (mainly grub-install) need to write to it. It might be wrong to mount it read-write by default (as systemd does), but other init systems (OpenRC, e.g.) have also mounted it read-write.