I can only add that things were working fine in 14.04 when switching to -lts packages. I never had this "service vboxguest already provided" problem there.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1708315 Title: package virtualbox-guest-utils-hwe 5.0.40-dfsg- 0ubuntu1.16.04.1~16.04.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1708315/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs