Addressing the specific issue of not being able to use "ubuntu-bug linux", I've tried to recreate on two systems running xenial and a fresh install of xenial and was unsuccessful. We can see that apport in appor/ui.py has special casing for linux.
391 def run_report_bug(self, symptom_script=None): 392 '''Report a bug. ... 441 # "Do what I mean" for filing against "linux" 442 if self.options.package == 'linux': 443 self.cur_package = apport.packaging.get_kernel_package() Then in apport/packaging.py we have: 621 def get_kernel_package(self): 622 '''Return the actual Linux kernel package name. 623 624 This is used when the user reports a bug against the "linux" package. 625 ''' 626 # TODO: Ubuntu specific 627 return 'linux-image-' + os.uname()[2] Do you have linux-image-4.4.0-2-generic installed? ** Changed in: apport (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550846 Title: package identification is awful To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1550846/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs