OK. By the way, I suggest moving conf.d/resume creation (if doesn't exist) to postinst. That was my problem, I had no conf.d/resume (probably due to some upgrades) and I had to create it either manually or by uninstalling (with --force-depends) and installing initramfs- tools.
-- conf.d/resume creation in preinst doesn't work https://launchpad.net/bugs/67932 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs