PAM
To use PAM, the pam package itself must be installed as well as something for logging into the system that supports PAM. The login bundled with busybox does not support PAM. Instead, one of the following may be used:
greetdplus any greeter (agrettylooks like login). See (greetd's website for more information).login(1)provided byshadow-loginlogin(1)provided byutil-linux-login