Ubuntu
systemd package

  1. Bug #1391354
  2. Comment #10

Comment 10 for bug 1391354

Revision history for this message
Scott Moser (smoser) wrote : Re: Failure to boot ephemeral image for Utopic Fast Installer deployment

so it seems like udev (systemd) should be doing this, and was in trusty but is now not in utopic.
 src/udev/udev-builtin-path_id.c
has
 handle_scsi_iscsi
that would set that property.