Public bug reported:
After performing an upgrade, and then rebooting, I am no longer able to
login with my user "ubuntu". I get an authentication failure with both
the graphical login screen, and when attempting to login on a non-
graphical tty.
Dropping to a rescue shell, I can see this in the logs:
root@xubuntu:~# journalctl -b --grep pam
Aug 02 11:52:45 xubuntu systemd[1]: systemd 255.4-1ubuntu8.2 running in system
mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OP>
Aug 02 11:53:00 xubuntu lightdm[1422]: pam_unix(lightdm-greeter:session):
session opened for user lightdm(uid=115) by (uid=0)
Aug 02 11:53:00 xubuntu (systemd)[1472]: pam_unix(systemd-user:session):
session opened for user lightdm(uid=115) by lightdm(uid=0)
Aug 02 11:53:00 xubuntu lightdm[1422]: gkr-pam: couldn't unlock the login
keyring.
Aug 02 11:53:01 xubuntu lightdm[1584]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "ubuntu"
Aug 02 11:53:40 xubuntu lightdm[1584]: pam_unix(lightdm:auth): authentication
failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=ubuntu
Aug 02 11:53:42 xubuntu lightdm[1604]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "ubuntu"
Aug 02 11:53:49 xubuntu lightdm[1604]: pam_unix(lightdm:auth): authentication
failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=ubuntu
Aug 02 11:53:51 xubuntu lightdm[1605]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "ubuntu"
Aug 02 11:53:58 xubuntu lightdm[1607]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "root"
Aug 02 11:53:59 xubuntu lightdm[1607]: gkr-pam: unable to locate daemon control
file
Aug 02 11:53:59 xubuntu lightdm[1607]: gkr-pam: stashed password to try later
in open session
Aug 02 11:53:59 xubuntu lightdm[1422]: pam_unix(lightdm-greeter:session):
session closed for user lightdm
Aug 02 11:53:59 xubuntu lightdm[1607]: pam_unix(lightdm:session): session
opened for user root(uid=0) by (uid=0)
Aug 02 11:54:00 xubuntu (systemd)[1614]: pam_unix(systemd-user:session):
session opened for user root(uid=0) by root(uid=0)
Aug 02 11:54:00 xubuntu lightdm[1607]: gkr-pam: unlocked login keyring
Aug 02 11:54:10 xubuntu (sd-pam)[1473]: pam_unix(systemd-user:session): session
closed for user lightdm
Aug 02 11:55:01 xubuntu CRON[2417]: pam_unix(cron:session): session opened for
user root(uid=0) by root(uid=0)
Aug 02 11:55:01 xubuntu CRON[2417]: pam_unix(cron:session): session closed for
user root
Other notes:
(1) During the upgrade, the screen saver was disabled. I know this has been a
bug in the past, but I do not believe it is the cause here.
(2) A work around for this is to drop into a rescue shell, and from root, run
e.g. `passwd ubuntu` to reset the user's password.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: libpam-modules 1.5.3-5ubuntu5.1
ProcVersionSignature: Ubuntu 6.8.0-39.39-generic 6.8.8
Uname: Linux 6.8.0-39-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
CurrentDesktop: XFCE
Date: Fri Aug 2 11:55:51 2024
InstallationDate: Installed on 2024-07-30 (3 days ago)
InstallationMedia: Xubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64
(20240216.1)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: pam
UpgradeStatus: Upgraded to noble on 2024-08-02 (0 days ago)
mtime.conffile..etc.init.d.apport: 2024-04-23T07:30:10
** Affects: pam (Ubuntu)
Importance: Critical
Status: New
** Affects: pam (Ubuntu Noble)
Importance: Critical
Status: New
** Tags: amd64 apport-bug noble rls-nn-incoming
** Also affects: pam (Ubuntu Noble)
Importance: Undecided
Status: New
** Changed in: pam (Ubuntu Noble)
Importance: Undecided => Critical
** Changed in: pam (Ubuntu)
Importance: Undecided => Critical
** Changed in: pam (Ubuntu Noble)
Milestone: None => ubuntu-24.04.1
** Tags added: rls-nn-incoming
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https://bugs.launchpad.net/bugs/2075968
Title:
cannot login after upgrade from xubuntu 22.04 to 24.04
Status in pam package in Ubuntu:
New
Status in pam source package in Noble:
New
Bug description:
After performing an upgrade, and then rebooting, I am no longer able
to login with my user "ubuntu". I get an authentication failure with
both the graphical login screen, and when attempting to login on a
non-graphical tty.
Dropping to a rescue shell, I can see this in the logs:
root@xubuntu:~# journalctl -b --grep pam
Aug 02 11:52:45 xubuntu systemd[1]: systemd 255.4-1ubuntu8.2 running in
system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT
-GNUTLS +OP>
Aug 02 11:53:00 xubuntu lightdm[1422]: pam_unix(lightdm-greeter:session):
session opened for user lightdm(uid=115) by (uid=0)
Aug 02 11:53:00 xubuntu (systemd)[1472]: pam_unix(systemd-user:session):
session opened for user lightdm(uid=115) by lightdm(uid=0)
Aug 02 11:53:00 xubuntu lightdm[1422]: gkr-pam: couldn't unlock the login
keyring.
Aug 02 11:53:01 xubuntu lightdm[1584]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "ubuntu"
Aug 02 11:53:40 xubuntu lightdm[1584]: pam_unix(lightdm:auth): authentication
failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=ubuntu
Aug 02 11:53:42 xubuntu lightdm[1604]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "ubuntu"
Aug 02 11:53:49 xubuntu lightdm[1604]: pam_unix(lightdm:auth): authentication
failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=ubuntu
Aug 02 11:53:51 xubuntu lightdm[1605]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "ubuntu"
Aug 02 11:53:58 xubuntu lightdm[1607]: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "root"
Aug 02 11:53:59 xubuntu lightdm[1607]: gkr-pam: unable to locate daemon
control file
Aug 02 11:53:59 xubuntu lightdm[1607]: gkr-pam: stashed password to try later
in open session
Aug 02 11:53:59 xubuntu lightdm[1422]: pam_unix(lightdm-greeter:session):
session closed for user lightdm
Aug 02 11:53:59 xubuntu lightdm[1607]: pam_unix(lightdm:session): session
opened for user root(uid=0) by (uid=0)
Aug 02 11:54:00 xubuntu (systemd)[1614]: pam_unix(systemd-user:session):
session opened for user root(uid=0) by root(uid=0)
Aug 02 11:54:00 xubuntu lightdm[1607]: gkr-pam: unlocked login keyring
Aug 02 11:54:10 xubuntu (sd-pam)[1473]: pam_unix(systemd-user:session):
session closed for user lightdm
Aug 02 11:55:01 xubuntu CRON[2417]: pam_unix(cron:session): session opened
for user root(uid=0) by root(uid=0)
Aug 02 11:55:01 xubuntu CRON[2417]: pam_unix(cron:session): session closed
for user root
Other notes:
(1) During the upgrade, the screen saver was disabled. I know this has been a
bug in the past, but I do not believe it is the cause here.
(2) A work around for this is to drop into a rescue shell, and from root, run
e.g. `passwd ubuntu` to reset the user's password.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: libpam-modules 1.5.3-5ubuntu5.1
ProcVersionSignature: Ubuntu 6.8.0-39.39-generic 6.8.8
Uname: Linux 6.8.0-39-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
CurrentDesktop: XFCE
Date: Fri Aug 2 11:55:51 2024
InstallationDate: Installed on 2024-07-30 (3 days ago)
InstallationMedia: Xubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64
(20240216.1)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: pam
UpgradeStatus: Upgraded to noble on 2024-08-02 (0 days ago)
mtime.conffile..etc.init.d.apport: 2024-04-23T07:30:10
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