I just spent some time tracking this down for a datacenter tech trying to do a fresh install:
linux-image-4.4.0-143-generic depends on linux-base (no min version) and needs linux-update-symlinks from linux-base linux-image-4.4.0-145-generic depends on linux-base >= 4.5ubuntu1~16.04.1 xenial main has linux-base 4.0ubuntu1 which doesn't have linux-update-symlinks xenial-updates xenial-security have 4.5ubuntu1~16.04.1 which does have linux-update-symlinks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1822108 Title: package linux-image-4.4.0-143-generic 4.4.0-143.169 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1822108/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs