Hi.

1) Always that login at system, it request the role and the type. (it is not very clearly, excuse).

The message is the one that follows:

boot process ...

login:   root
password: *******
Login: unable to obtain context for root
Would you like to enter a security context? [y]

I answer y.

Enter role   sysadm_r
Enter type   sysadm_t

messages AVC: denied. The login process is OK.

I have always that  to provide this role and type?
I think that login process not is recognize the files of context (/etc/security/default_type or /etc/security/default_context).

Thanks.