This bug was fixed in the package cryptsetup - 2:2.0.2-1ubuntu2
--------------- cryptsetup (2:2.0.2-1ubuntu2) cosmic; urgency=medium
* Apply patch from Trent Nelson to fix cryptroot-unlock for busybox compatibility. LP: #1651818
-- Dimitri John Ledkov 🌈 <email address hidden> Thu, 21 Jun 2018 16:38:31 +0100
This bug was fixed in the package cryptsetup - 2:2.0.2-1ubuntu2
---------------
cryptsetup (2:2.0.2-1ubuntu2) cosmic; urgency=medium
* Apply patch from Trent Nelson to fix cryptroot-unlock for busybox
compatibility. LP: #1651818
-- Dimitri John Ledkov 🌈 <email address hidden> Thu, 21 Jun 2018 16:38:31 +0100