Le 09/02/2018 à 09:00, Ed Greshko a écrit :
On 02/09/18 15:33, François Patte wrote:
> Le 08/02/2018 à 22:45, Ed Greshko a écrit :
>> On 02/08/18 23:53, François Patte wrote:
>>> Le 08/02/2018 à 14:39, Ed Greshko a écrit :
>>>> On 02/08/18 20:21, François Patte wrote:
>>>>> I have problem with lightdm greeter: one user cannnot log-in: I have
>>>>> this message in /var/log/lightdm/lightdm.log:
>>>>>
>>>>> Authenticate result for user cath : User not known to the
underlying
>>>>> authentication module
>>>>>
>>>>> What does it mean and how to recover?
>>>> First thing to check. Does user cath have an entry in the /etc/shadow
file?
>>> Certainly! She can login through ssh.
>> But is the user logging it via ssh using keys or a password?
> password
>
>> Have you, as root, tried resetting the password?
> Yes I did
>
OK....
How about you take note of the numeric UID and GID and then delete the user without
deleting their home directory. Then recreate the user with the same numeric UID and
GID but pointing to a new home directory. Then test. If the test is successful then
change the password file to point to the original home directory.
Seems to be an empirical way to solve the problem! Nobody knows what is
responsible for such a message (Authenticate result for user cath :
User not known to the underlying authentication module)? What is this
module and how to inform it that a new user was added?
Oh, before that, what is the numeric UID and GID of the user? If it is less than
1000 it may cause issues.
3000
--
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)6 7892 5822
http://www.math-info.univ-paris5.fr/~patte