[K12OSN] : CentOS 7 & LTSP adventures, success.

Tue Apr 14 10:27:24 UTC 2015

And now I'm seeing this in lightdm log:

[root at 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" <johan.vermeulen7 at telenet.be>
Aan: "Support list for open source software in schools." <k12osn at redhat.com>
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" <johan.vermeulen7 at telenet.be>
Aan: "Support list for open source software in schools." <k12osn at redhat.com>
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" <johan.vermeulen7 at telenet.be>
Aan: "Support list for open source software in schools." <k12osn at redhat.com>
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 <brcisna at eazylivin.net>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,
>http://tecadmin.net/install-google-chrome-in-centos-rhel-and-fedora/
>
>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
>
>
>
>
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