This bug was fixed in the package debian-installer - 20101020ubuntu318.40
--------------- debian-installer (20101020ubuntu318.40) trusty; urgency=medium
* Stop stripping modules; it removes the signatures (LP: #1604441) * Move master kernels to 3.13.0-92. * Move keystone kernels to 3.13.0-63. * Move lts-utopic kernels to 3.16.0-77. * Move lts-vivid kernels to 3.19.0-65. * Move lts-wily kernels to 4.2.0-42. * Move lts-xenial kernels to 4.4.0-31.
-- Adam Conrad <email address hidden> Mon, 25 Jul 2016 13:28:11 -0600
This bug was fixed in the package debian-installer - 20101020ubuntu3 18.40
--------------- 318.40) trusty; urgency=medium
debian-installer (20101020ubuntu
* Stop stripping modules; it removes the signatures (LP: #1604441)
* Move master kernels to 3.13.0-92.
* Move keystone kernels to 3.13.0-63.
* Move lts-utopic kernels to 3.16.0-77.
* Move lts-vivid kernels to 3.19.0-65.
* Move lts-wily kernels to 4.2.0-42.
* Move lts-xenial kernels to 4.4.0-31.
-- Adam Conrad <email address hidden> Mon, 25 Jul 2016 13:28:11 -0600