This bug was fixed in the package initramfs-tools - 0.120ubuntu6
--------------- initramfs-tools (0.120ubuntu6) wily; urgency=medium
* add squashfs to list of 'most' modules (LP: #1501834)
-- Scott Moser <email address hidden> Thu, 01 Oct 2015 12:48:11 -0400
This bug was fixed in the package initramfs-tools - 0.120ubuntu6
---------------
initramfs-tools (0.120ubuntu6) wily; urgency=medium
* add squashfs to list of 'most' modules (LP: #1501834)
-- Scott Moser <email address hidden> Thu, 01 Oct 2015 12:48:11 -0400