Re: lightdm authentication failure for one user [more info]
On 02/12/2018 12:55 PM, Ed Greshko wrote: Plus, dnf has the "erase" function. Therefore, in the case of troubleshooting you can erase what you've installed to remove unneeded/unwanted packages. You can also use the history function to get the transaction number and undo it. ___ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org
Re: lightdm authentication failure for one user [more info]
On 02/13/18 01:10, François Patte wrote: >> light(dm) dm=Display Manager >> >> You could try sddm, kdm, or gdm? > I don't want to do that: I dislike gnome or kde and do not want to > introduce a lot of dependancies For future reference This is what one gets from adding sddm to a pure GNOME system. [egreshko@f27gq ~]$ sudo dnf install sddm [sudo] password for egreshko: Last metadata expiration check: 1:18:21 ago on Tue 13 Feb 2018 03:31:03 AM CST. Dependencies resolved. === Package Arch Version Repository Size === Installing: sddm x86_64 0.15.0-1.fc27 fedora 611 k Installing dependencies: desktop-backgrounds-compat noarch 27.0.0-1.fc27 fedora 18 k Transaction Summary === Install 2 Packages Total download size: 629 k Installed size: 1.5 M Is this ok [y/N]: N Operation aborted. So, not a whole lot of dependencies. Plus, dnf has the "erase" function. Therefore, in the case of troubleshooting you can erase what you've installed to remove unneeded/unwanted packages. > > I solved the problem but I am still wondering why this issue hapenned: Good. -- A motto of mine is: When in doubt, try it out signature.asc Description: OpenPGP digital signature ___ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org
Re: lightdm authentication failure for one user [more info]
On 12 February 2018 at 13:10, François Patte < francois.pa...@mi.parisdescartes.fr> wrote: > Le 10/02/2018 à 09:55, Ed Greshko a écrit : > > On 02/10/18 16:42, François Patte wrote: > >> Le 10/02/2018 à 09:32, Ed Greshko a écrit : > >>> On 02/10/18 16:12, François Patte wrote: > Le 09/02/2018 à 18:46, Rick Stevens a écrit : > > On 02/09/2018 08:05 AM, François Patte wrote: > >> Le 09/02/2018 à 15:33, Ed Greshko a écrit : > >>> On 02/09/18 22:13, François Patte wrote: > 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? > >>> Well, since I am the only one who has responded to your query and > since I only know > >>> what I have found by using google, I guess nobody knows for sure > what is causing the > >>> problem. > >> Trying your trick gives the same result: once the password has been > >> given, lightdm behaves like if it was a wrong password and user > can't log! > >> > >>> At this point are you more interested in getting that user logged > in under lightdm or > >>> finding out why they have been unable to? > >> I am interested in both, it is quite boring that something has been > done > >> somewhere and messages in log files are not enough explicit to > solve the > >> problem This tends to make the system more secretive. > >> > >> I googled too, and find some answer related to pam, to ldap > Nothing > >> about lightdm! > > Please check the system logs. It may be an issue with libcrypt (e.g. > the > > version desired isn't there). I've had that issue with a laptop > before > > where the PAM system wanted libcrypto.so.6 (which was what was > > originally installed way back when) but the current version was > > libcrypto.so.10. > In that case wouldn't be impossible to login for all users? > > > >>> Would you consider to try another DM? > >> DM? > >> > > light(dm) dm=Display Manager > > > > You could try sddm, kdm, or gdm? > > I don't want to do that: I dislike gnome or kde and do not want to > introduce a lot of dependancies > > I solved the problem but I am still wondering why this issue hapenned: > > lightdm uses accountservice and for other users there is file > > /var/lib/AccountsService/users/user-name > > which seems to has been created by adduser when their account was created. > > Why, for this particular user this file was not created, I don't know! I > deleted and recreated the account but this file was not created and I > had to do it manually > > This file is very simple and contains: > > [User] > Language=fr_FR.utf8 > XSession=xfce > SystemAccount=false > > That's all! > > Now, if anybody has a clue, I will have better nights! > Have you seen https://askubuntu.com/questions/139412/enabling-a-user-created-with-adduser-command-for-lightdm-graphical-login ? https://bugs.launchpad.net/lightdm/+bug/1019314 indicates that lightdm switched to using PAM via accountservice for user prefs in 2012, causing issues for scripts that were storing user prefs to ~/.dmrc. 4 years is about long enough for someone to have forgotten that lightdm has to be handled differently. Many systems have multiple ways to add a user (different GUI's as well as `adduser` versus `useradd`). Is it possible that a different tool was used for the problem user? If not, perhaps something different in that user's configuration caused the tool to use a different logic path and encounter a bug -- either never patched in 2012-2013 or recently introduced. > > Thank you. > > -- > 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 > > > ___ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > > -- George N. White III ___ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org
Re: lightdm authentication failure for one user [more info]
Le 10/02/2018 à 09:55, Ed Greshko a écrit : > On 02/10/18 16:42, François Patte wrote: >> Le 10/02/2018 à 09:32, Ed Greshko a écrit : >>> On 02/10/18 16:12, François Patte wrote: Le 09/02/2018 à 18:46, Rick Stevens a écrit : > On 02/09/2018 08:05 AM, François Patte wrote: >> Le 09/02/2018 à 15:33, Ed Greshko a écrit : >>> On 02/09/18 22:13, François Patte wrote: 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? >>> Well, since I am the only one who has responded to your query and since >>> I only know >>> what I have found by using google, I guess nobody knows for sure what >>> is causing the >>> problem. >> Trying your trick gives the same result: once the password has been >> given, lightdm behaves like if it was a wrong password and user can't >> log! >> >>> At this point are you more interested in getting that user logged in >>> under lightdm or >>> finding out why they have been unable to? >> I am interested in both, it is quite boring that something has been done >> somewhere and messages in log files are not enough explicit to solve the >> problem This tends to make the system more secretive. >> >> I googled too, and find some answer related to pam, to ldap Nothing >> about lightdm! > Please check the system logs. It may be an issue with libcrypt (e.g. the > version desired isn't there). I've had that issue with a laptop before > where the PAM system wanted libcrypto.so.6 (which was what was > originally installed way back when) but the current version was > libcrypto.so.10. In that case wouldn't be impossible to login for all users? >>> Would you consider to try another DM? >> DM? >> > light(dm) dm=Display Manager > > You could try sddm, kdm, or gdm? I don't want to do that: I dislike gnome or kde and do not want to introduce a lot of dependancies I solved the problem but I am still wondering why this issue hapenned: lightdm uses accountservice and for other users there is file /var/lib/AccountsService/users/user-name which seems to has been created by adduser when their account was created. Why, for this particular user this file was not created, I don't know! I deleted and recreated the account but this file was not created and I had to do it manually This file is very simple and contains: [User] Language=fr_FR.utf8 XSession=xfce SystemAccount=false That's all! Now, if anybody has a clue, I will have better nights! Thank you. -- 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 signature.asc Description: OpenPGP digital signature ___ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org
