I checked each of those files, and did not find anything that was abnormal. 
They listed “files”. Also the /etc/shadow file does exist and the root account 
is enabled.

Update: I switched to using CentOS 7.5 ISO rather than the most current CentOS 
7.7 ISO. The CentOS 7.5 ISO does not have aforementioned issue, and I am able 
to upgrade from there to CentOS 7.7.

From: Kevin Keane <[email protected]>
Reply-To: xCAT Users Mailing list <[email protected]>
Date: Friday, December 13, 2019 at 12:34 PM
To: xCAT Users Mailing list <[email protected]>
Subject: Re: [xcat-user] Debus Failure

I would check the passwd and shadow entries in the nsswitch.conf file. They 
should have "files" listed as the first entry. Oh, and also make sure that the 
/etc/shadow file exists and contains a root entry. And that it isn't disabled.

Next, check the pam configuration (in /etc/pam.d). It may be missing a module 
to retrieve the root user.

Of course, I could be way off base with those suggestions, somebody else may 
have better ideas. But your problem sounded like a low-level authentication 
issue.

_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS | 
[email protected]<mailto:[email protected]>
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492 | 619.260.6859 | 
Text: 760-721-8339

REMEMBER! No one from IT at USD will ever ask to confirm or supply your 
password.
These messages are an attempt to steal your username and password. Please do 
not reply to, click the links within, or open the attachments of these 
messages. Delete them!




On Fri, Dec 13, 2019 at 10:26 AM Squaire, Stephen 
<[email protected]<mailto:[email protected]>> wrote:
Yes, both files are present. The passwd file contains the root user. Is there 
something I should be looking for in the nsswitch.conf file?

From: Kevin Keane <[email protected]<mailto:[email protected]>>
Reply-To: xCAT Users Mailing list 
<[email protected]<mailto:[email protected]>>
Date: Friday, December 13, 2019 at 12:09 PM
To: xCAT Users Mailing list 
<[email protected]<mailto:[email protected]>>
Subject: Re: [xcat-user] Debus Failure

Does your stateless image (on the management node somewhere under your /install 
directory) contain a /etc/passwd file? Is there an /etc/nsswitch.conf file?

_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS | 
[email protected]<mailto:[email protected]>
Maher Hall, 192 |5998 Alcalá Park | San Diego, CA 92110-2492 | 619.260.6859 | 
Text: 760-721-8339

REMEMBER! No one from IT at USD will ever ask to confirm or supply your 
password.
These messages are an attempt to steal your username and password. Please do 
not reply to, click the links within, or open the attachments of these 
messages. Delete them!




On Fri, Dec 13, 2019 at 9:14 AM Squaire, Stephen 
<[email protected]<mailto:[email protected]>> wrote:
Hello,

I am rather new to xCAT, so this may be a stupid question (and if so apologies 
in advance). I checked the archives and was unable to find anything related, so 
now I’m writing here.

I am building a CentOS 7.7 stateless instance. When I deploy to a node, the 
node will boot but I am unable to log in as root from the console. I also added 
a user (via doing a chroot into rootimg and adding a user), but when I attempt 
to log in via said user on the console I get the error  “User not known to 
underlining authentication module”. When I check the logs I get the below logs.

Any help on this would be greatly appreciated.

Thank you!



Dec 12 17:21:00 cn1 systemd: INFO  Starting Update UTMP about System Runlevel 
Changes...

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 systemd: INFO  Started Update UTMP about System Runlevel 
Changes.

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

Dec 12 17:21:00 cn1 systemd: INFO  Startup finished in 4.923s (kernel) + 
31.755s (initrd) + 32min 58.284s (userspace) = 33min 34.963s.

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Failed to start message bus: Could not 
get UID and GID for username "dbus"

Dec 12 17:21:00 cn1 systemd: NOTICE  dbus.service: main process exited, 
code=exited, status=1/FAILURE

Dec 12 17:21:00 cn1 systemd: NOTICE  Unit dbus.service entered failed state.

Dec 12 17:21:00 cn1 systemd: WARNING  dbus.service failed.

Dec 12 17:21:00 cn1 systemd: INFO  Started D-Bus System Message Bus.

Dec 12 17:21:00 cn1 systemd: ERR  Failed to connect to system bus: Resource 
temporarily unavailable

Dec 12 17:21:00 cn1 systemd: ERR  Failed to initialize D-Bus connection: 
Resource temporarily unavailable

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Could not get password database 
information for UID of current process: User "???" unknown or no memory to 
allocate password entry

Dec 12 17:21:00 cn1 dbus-daemon: INFO  Unknown username "root" in message bus 
configuration file

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