[arch-general] How to change gdm greeter theme?

[Javier Adrián Ortiz de la Tabla]

> How do you get around this:
>
> gdm:x:120:120:Gnome Display Manager:/var/lib/gdm:/sbin/nologin
>
> su, gksu say account is not available. Do you just change the :sbin/nologin
> part? How -- safely? I've never messed with something like that before.
>

This is what I use to do, if something is wrong somebody please correct me.

Change :/sbin/nologin to :/bin/bash, then, as root
# su gdm
$ dbus-launch gnome-appearance-properties

Configure according to your needs, then edit /etc/passwd again and
change :/bin/bash to :/sbin/nologin.

-- 
Javier Adrián Ortiz de la Tabla