Hi, Juergen Fiedler wrote: > Does the volume-id parameter in efi-image and binary_grub-efi serve an > important purpose?
For /dev/disk/by-label it is important that it is not the same as the ids of the overall ISO and other partitions in the image. Actually it should be unique system-wide. So with only 32 bit, it should have outmost entropy. (How about CRC-32 of the timestamp or the first 32 bit of its MD5 ?) udev older than january 9 2020 attributes the ISO's Volume Id as /dev/disk/by-label to any partition which has no filesystem or an empty label. (https://github.com/systemd/systemd/issues/14408) Have a nice day :) Thomas