This bug was fixed in the package init-system-helpers - 1.22ubuntu8
--------------- init-system-helpers (1.22ubuntu8) vivid; urgency=medium
* Make init "Essential: yes" again, it's the only way to guarantee a sane upgrade path for people without ubuntu-minimal (LP: #1436956) -- Adam Conrad <email address hidden> Tue, 07 Apr 2015 10:27:59 -0600
This bug was fixed in the package init-system-helpers - 1.22ubuntu8
---------------
init-system-helpers (1.22ubuntu8) vivid; urgency=medium
* Make init "Essential: yes" again, it's the only way to guarantee a
sane upgrade path for people without ubuntu-minimal (LP: #1436956)
-- Adam Conrad <email address hidden> Tue, 07 Apr 2015 10:27:59 -0600