The trusty package from -proposed also successfully installed on a BIOS system.
bdmurray@clean-trusty-amd64:~$ sudo apt install secureboot-db Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libdbusmenu-gtk4 libqpdf13 Use 'apt-get autoremove' to remove them. The following packages will be upgraded: secureboot-db 1 upgraded, 0 newly installed, 0 to remove and 11 not upgraded. Need to get 8,396 B of archives. After this operation, 8,192 B of additional disk space will be used. Get:1 http://ubuntu.osuosl.org/ubuntu/ trusty-proposed/main secureboot-db amd64 1.4~ubuntu0.14.04.1 [8,396 B] Fetched 8,396 B in 0s (45.5 kB/s) (Reading database ... 204091 files and directories currently installed.) Preparing to unpack .../secureboot-db_1.4~ubuntu0.14.04.1_amd64.deb ... Unpacking secureboot-db (1.4~ubuntu0.14.04.1) over (1.1) ... Setting up secureboot-db (1.4~ubuntu0.14.04.1) ... Can't access efivars filesystem at /sys/firmware/efi/efivars, aborting ** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776996 Title: secureboot-db out of date, missing revocations from Aug 2016 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/secureboot-db/+bug/1776996/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs