login.krb5 not accepting root password

[Someone]

Russ Allbery wrote:

> Someone <please at nospam.net> writes:
> 
> 
>>So what should I do so I can login with my local root account again
>>using login.krb5 ??
>>
> 
> Either don't use MD5 passwords (which is usually some sort of
> configuration option on your system, but isn't recommended) or don't use
> login.krb5 on Linux as /bin/login.
> 
> On Linux, a Kerberos PAM module is usually a better idea.
> 
> 


I need to use login.krb5 abosulutely, else how can I authenticate my 
users with kerberos and let them login ??

Regards