ほほう。
$ sudo /usr/sbin/tf-tool --add-user hoge
swipswipswip
$ cat /etc/pam.d/system-auth
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth required pam\_env.so
auth sufficient pam\_thinkfinger.so
auth sufficient pam\_unix.so nullok try\_first\_pass
.....
Login: hoge
swip