Disable selinux with setenforce 0 and retry. Or you can go digging in the audit log for clues. <div class="gmail_quote">On Apr 14, 2015 12:51 PM, <<a href="mailto:johan.vermeulen7@telenet.be">johan.vermeulen7@telenet.be</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello All, after copying over more recent images, this changes. Login at first seems to work.Then the screen goes all stripy, and goes back to logon screen. In /var/log/messages: Apr 14 18:40:42 localhost systemd: Created slice user-1000.slice. Apr 14 18:40:42 localhost systemd: Starting Session 3 of user caw. Apr 14 18:40:42 localhost systemd: Started Session 3 of user caw. Apr 14 18:40:42 localhost systemd-logind: New session 3 of user caw. Apr 14 18:40:47 localhost xinetd[1572]: START: ldminfod pid=3564 from=::ffff:192.168.63.130 Apr 14 18:40:47 localhost xinetd[1572]: EXIT: ldminfod status=0 pid=3564 duration=0(sec) Apr 14 18:40:55 localhost systemd-logind: Removed session 3. In /var/log/secure: Apr 14 18:40:42 localhost sshd[3156]: Accepted password for caw from 192.168.63.130 port 47688 ssh2 Apr 14 18:40:42 localhost sshd[3156]: pam_unix(sshd:session): session opened for user caw by (uid=0) Apr 14 18:40:46 localhost sshd[3160]: Received disconnect from <a href="http://192.168.63.130" target="_blank">192.168.63.130</a>: 11: disconnected by user Apr 14 18:40:46 localhost sshd[3156]: pam_unix(sshd:session): session closed for user caw Thanks for any clues. greetings, Johan ----- Oorspronkelijk bericht ----- Van: "johan vermeulen7" <<a href="mailto:johan.vermeulen7@telenet.be">johan.vermeulen7@telenet.be</a>> Aan: "Support list for open source software in schools." <<a href="mailto:k12osn@redhat.com">k12osn@redhat.com</a>> Verzonden: Dinsdag 14 april 2015 12:27:24 Onderwerp: Re: [K12OSN] : CentOS 7 & LTSP adventures, success. And now I'm seeing this in lightdm log: [root@localhost ~]# tail -f /var/log/lightdm/x-0-greeter.log (lightdm-gtk-greeter:868): GLib-CRITICAL **: g_variant_get_type: assertion 'value != NULL' failed (lightdm-gtk-greeter:868): GLib-CRITICAL **: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed (lightdm-gtk-greeter:868): GLib-CRITICAL **: g_variant_get_type_string: assertion 'value != NULL' failed ** (lightdm-gtk-greeter:868): WARNING **: Unexpected accounts property type for XHasMessages: (null) (lightdm-gtk-greeter:868): GLib-CRITICAL **: g_variant_unref: assertion 'value != NULL' failed ----- Oorspronkelijk bericht ----- Van: "johan vermeulen7" <<a href="mailto:johan.vermeulen7@telenet.be">johan.vermeulen7@telenet.be</a>> Aan: "Support list for open source software in schools." <<a href="mailto:k12osn@redhat.com">k12osn@redhat.com</a>> Verzonden: Dinsdag 14 april 2015 12:11:18 Onderwerp: Re: [K12OSN] : CentOS 7 & LTSP adventures, success. Hello, it could be this is related to Lightdm, the server has mate-desktop installed. I'm also seeing this EM: Apr 14 12:04:36 localhost lightdm: pam_unix(lightdm-greeter:session): session closed for user lightdm ----- Oorspronkelijk bericht ----- Van: "johan vermeulen7" <<a href="mailto:johan.vermeulen7@telenet.be">johan.vermeulen7@telenet.be</a>> Aan: "Support list for open source software in schools." <<a href="mailto:k12osn@redhat.com">k12osn@redhat.com</a>> Verzonden: Dinsdag 14 april 2015 11:55:25 Onderwerp: Re: [K12OSN] : CentOS 7 & LTSP adventures, success. Hello Barry, Hello All, so I'm also experimenting on Centos7. I followed the procedure described by Barry below. The thinclient boots fine, but users or root can't logon. The EM I'm seeing is: Apr 14 11:46:02 localhost sshd[5003]: Connection closed by 192.168.63.130 [preauth] I tried the usual, ltsp-update-sshkeys, Selinux, ... Can anyone help me with this? Many thanks. Johan ----- Oorspronkelijk bericht ----- Van: "Johan Vermeulen" <<a href="mailto:johan.vermeulen7@telenet.be">johan.vermeulen7@telenet.be</a>> Aan: "Support list for open source software in schools." <<a href="mailto:k12osn@redhat.com">k12osn@redhat.com</a>> Verzonden: Vrijdag 2 januari 2015 22:34:53 Onderwerp: Re: [K12OSN] : CentOS 7 & LTSP adventures, success. Barry, thanks for letting us know. I am planning on deploying k12linux on Centos7. Greetings, johan Barry R Cisna <<a href="mailto:brcisna@eazylivin.net">brcisna@eazylivin.net</a>>schreef: >Hello All, > >Thought this may be of interest to some here. >Decided to see how an install of LTSP on CentOS 7 would go,so here are >my findings and long story short LTSP can work on CentOS 7! > >1) Fresh install of CentOS 7 >2) Do the standard install of the ltsp repo.rpm >3)" yum -y install ltsp-server", fails with three dependencies not >fulfilled. >4) add the epel & repoforge repos., still fails with xorg-x11-xdm not >found >5) find this rpm on net in i386 and force install >6) ltsp-server now installs fine on server, and ltsp-build-client builds >fine as well. >7) thin client boots but fails login, same as a recent CentOS 6.6 & LTSP >with root trying to get a login from ssh right behind the standard user? > >Plan B: > >1) rename /tftpboot/ltsp and /opt/ltsp to ltsp_OLD on CentOS 7 server. > >1a) from a working 8 month old install of LTSP on CentOS 6.6 on server >rsync -avz /var/lib/tftpboot/ltsp remoteCentOS7:/var/lib/tftpboot/ >rsync -avz /opt/ltsp remoteCentOS7:/opt/ >2a) restart nfs & xinetd services >3a) ltsp-update-sshkeys & ltsp-update-kernels >4a) boot client - login success! >5a) usb sticks & sound works. >6a) #optional, install latest google chrome on server with, ><a href="http://tecadmin.net/install-google-chrome-in-centos-rhel-and-fedora/" target="_blank">http://tecadmin.net/install-google-chrome-in-centos-rhel-and-fedora/</a> > >Not necessary but all of the recent ltsp/k12linux server gets frequent >flash-plugin/plugin-container crashes using latest Firefox, >flash-plugin . >This is a known problem running flash-plugin on remote displays. > >Hope this may help someone. > >Barry > > > > >_______________________________________________ >K12OSN mailing list ><a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> ><a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> >For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> _______________________________________________ K12OSN mailing list <a href="mailto:K12OSN@redhat.com">K12OSN@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/k12osn" target="_blank">https://www.redhat.com/mailman/listinfo/k12osn</a> For more info see <<a href="http://www.k12os.org" target="_blank">http://www.k12os.org</a>> </blockquote></div>