Package: libpam-modules Version: 1.1.8-3.6 The manual claims:
RETURN VALUES PAM_SUCCESS The new localuser was set successfully. PAM_SERVICE_ERR No username was given. PAM_USER_UNKNOWN User not known. PAM_USER_UNKNOWN occurs nowhere in pam_localuser.c; the reality is that pam_localuser returns PAM_PERM_DENIED if the user isn't found in the configured file. -- Jamie Heilman http://audible.transient.net/~jamie/