For the record, some related notes... adduser doesn't allow adding such users even when specifying --force-badname ...
# adduser --force-badname tést adduser: To avoid problems, the username should consist only of letters, digits, underscores, periods, at signs and dashes, and not start with a dash (as defined by IEEE Std 1003.1-2001). For compatibility with Samba machine accounts $ is also supported at the end of the username If I instead add user "test" and hack /etc/passwd and /etc/shadow replacing "test" with "tést" using util-linux 2.24.2 I still can't log in with user "tést". Jun 21 15:10:57 testhost login[1837]: pam_unix(login:auth): check pass; user unknown Further investigation needed... Regards, Andreas Henriksson -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org