Ahh, and this is why. I was previously testing with "de_DE", and today tested with "de_DE.UTF-8":
(xenial-amd64)root@nosferatu:~# dpkg -l libc6 | grep ^i ii libc6:amd64 2.23-0ubuntu3 amd64 GNU C Library: Shared libraries (xenial-amd64)root@nosferatu:~# mkinitramfs --help /usr/sbin/mkinitramfs: unrecognized option '--help' W: non-GNU getopt (xenial-amd64)root@nosferatu:~# LANG=de_DE mkinitramfs --help Segmentation fault (core dumped) W: non-GNU getopt (xenial-amd64)root@nosferatu:~# LANG=de_DE.UTF-8 mkinitramfs --help Segmentation fault (core dumped) W: non-GNU getopt (xenial-amd64)root@nosferatu:~# apt-get update && apt-get install libc6 [...] (xenial-amd64)root@nosferatu:~# dpkg -l libc6 | grep ^i ii libc6:amd64 2.23-0ubuntu4 amd64 GNU C Library: Shared libraries (xenial-amd64)root@nosferatu:~# mkinitramfs --help /usr/sbin/mkinitramfs: unrecognized option '--help' W: non-GNU getopt (xenial-amd64)root@nosferatu:~# LANG=de_DE mkinitramfs --help /usr/sbin/mkinitramfs: unrecognized option '--help' W: non-GNU getopt (xenial-amd64)root@nosferatu:~# LANG=de_DE.UTF-8 mkinitramfs --help Segmentation fault (core dumped) W: non-GNU getopt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1577460 Title: mkinitramfs --help > Core dumped To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1577460/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
