Re: client booting linux stalls

Johan Vermeulen <[email protected]>
Newsgroups gmane.linux.redhat.k12osn
Message-ID <[email protected]>
hallo Jim,

thanks for the advise.

I just tested this, and by copying some files from a previous install, I 
can indeed get this to work without green screen.

So it seems our thinclients are out of date.

greetings, J.

Op 07-06-13 13:52, Jim Kinney schreef:
>
> You'll need to rollback to an older kernel version for the TC or 
> compile your own. RedHat dropped support for CPU styles from 15 years 
> back and many SoC devices that are not ARM are still i586 command sets.
>
> On Jun 7, 2013 5:22 AM, "Johan Vermeulen" <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     hallo Joshua,
>
>     thanks for getting back to me.
>
>     * I just ran
>
>     #yum clean all && yum update
>
>     and that worked;
>
>     ltsp-server-5.4.5-21.el6.x86_64
>     ltspfs-1.1-7.el6.x86_64
>     ltsp-release-5-9.el6.noarch
>
>     * I then did :
>
>     #mv /opt/ltsp /opt/ltsp.old
>
>     #ltsp-build-client
>
>     # ltsp-update-image
>     Your system seems to be using NFS to serve LTSP chroots.
>     If you're absolutely certain you want to switch to NBD, run:
>         /usr/sbin/ltsp-update-image --config-nbd
>
>     # ltsp-update-kernels
>     Updating /var/lib/tftpboot directories for chroot: i386
>     Skipping invalid chroot: mock
>
>     * I then booted the hp thinclient: same green screen.
>     I will try to send you a screenshot of that.
>     I checked the hardware of this hp thinclient:
>     it has a Via Eden processor 1000Mhz,
>
>     Googling the " unsupported processor centaurhauls" message I find
>     this :
>
>     /nybody know the reason RedHat decided not to support the
>     />>>/  VIA Eden Processor?/
>
>     /
>     If you take a look on google for "CentaurHauls i686" you will see
>     that />/this CPU/chipset SAYS it fully supports i686 but it really
>     does not. />/All of EL6 is i686 and not i586 (which CentaurHauls
>     really fully supports)./
>
>     So this suggests that Centos has an issue with this thinclient
>     There's also this site :
>
>     https://access.redhat.com/site/solutions/388693
>
>     that I don't have full access to.
>
>     But then I don't understand why so far I had no issues with
>     k12Linux on Centos?????
>
>     * I then put together a new thinclient, with motherbord Gibabyte
>     GA-c847n, intel Celeron processor.
>
>     When booting this, i also see some EM, but K12Linux boots fine, and...
>
>     There's no green screen. It just works
>
>     So this fully suggests that the issue is the HP t545 thinclient.
>
>     This is a showstopper for me, because this is our mainline thinclient.
>
>     Thanks for any advise on this issue.
>
>     Greetings, J.
>
>
>     Op 06-06-13 00:36, Joshua Trimm schreef:
>>     Johan, Try first cleaning your cache by doing a 'yum clean all'
>>     then 'yum update' and let me know if that works for you.
>>
>>     The green glare issue i'm unfamiliar with, could you take a
>>     screenshot and post a link to it directly to my email?
>>     Thanks,
>>
>>     On 6/5/13 2:55 AM, Johan Vermeulen wrote:
>>>     hello Jushua,
>>>
>>>     thanks for letting me know.
>>>
>>>     *the routing problem was solved by editing the iptables manualy.
>>>
>>>     * I did put "em2" in /etc/ltsp/ltsp-server.conf before running
>>>     the scripts.
>>>
>>>     * my original install was with epel, yesterday evening I updated
>>>     with the other repo:
>>>
>>>     [root@centoshofkwartier ~]# yum repolist
>>>     Loaded plugins: fastestmirror, refresh-packagekit, security
>>>     Loading mirror speeds from cached hostfile
>>>      * base: distrib-coffee.ipsl.jussieu.fr
>>>     <http://distrib-coffee.ipsl.jussieu.fr>
>>>      * extras: mirror.ovh.net <http://mirror.ovh.net>
>>>      * ltsp: ltsprepo.s3.amazonaws.com
>>>     <http://ltsprepo.s3.amazonaws.com>
>>>      * updates: distrib-coffee.ipsl.jussieu.fr
>>>     <http://distrib-coffee.ipsl.jussieu.fr>
>>>     repo id                        repo
>>>     name                                  status
>>>     base                           CentOS-6 -
>>>     Base                            6381
>>>     extras                         CentOS-6 -
>>>     Extras                            12
>>>     ltsp                           LTSP -
>>>     x86_64                                60
>>>
>>>
>>>     but something went wrong with the update,because my version is
>>>     still:
>>>
>>>     [root@centoshofkwartier ~]# rpm -qa | grep ltsp
>>>     ltsp-server-5.4.5-20.el6.x86_64
>>>     ltspfs-1.1-7.el6.x86_64
>>>     ltsp-release-5-9.el6.noarch
>>>
>>>     * I then rebuilded with ltsp-build-client
>>>
>>>     but the problem with the green glare stays.
>>>     Everything 's on the screen, but there's this filter over it......
>>>
>>>     Maybe this can be solved by editing lts.conf.....
>>>
>>>     greetings, J
>>>
>>>
>>>
>>>
>>>     Op 04-06-13 20:46, Joshua Trimm schreef:
>>>>     Johan, I have 5.4.5-21 being pushed to the repo's today which
>>>>     should fix the scripts to accept an interface regardless of its
>>>>     name.
>>>>
>>>>     The reason NFS needs to be started manually is due to the RPM
>>>>     not knowing which interface you will be using for the LTSP
>>>>     network. This must be defined in /etc/ltsp/ltsp-server.conf
>>>>     before ltsp-server-tweaks and ltsp-server-initialize are run.
>>>>     On 6/4/13 5:23 AM, Johan Vermeulen wrote:
>>>>>     Dear All,
>>>>>
>>>>>     this is my experience with the install :
>>>>>
>>>>>     version is ltsp-server-5.4.5-20.el6.x86_64 on Centos6.4.
>>>>>     installed with epel-repo.
>>>>>
>>>>>     After starting nfs manualy like Barry and starting tftp
>>>>>     manualy, I am able to boot a thinclient.
>>>>>
>>>>>     But I'm facing these problems :
>>>>>
>>>>>     *ltsp-server-tweaks hangs on " about to overwrite your
>>>>>     firewall config" either with iptables on or off.
>>>>>     Probably because of that, laptops and workstations that are on
>>>>>     the lan cannot reach the internet. This is my main concern.
>>>>>     Setting up nat manualy did not help.
>>>>>
>>>>>     this is /etc/sysconfig/iptables :
>>>>>
>>>>>     # Firewall configuration written by system-config-firewall
>>>>>     # Manual customization of this file is not recommended.
>>>>>     *nat
>>>>>     :PREROUTING ACCEPT [0:0]
>>>>>     :OUTPUT ACCEPT [0:0]
>>>>>     :POSTROUTING ACCEPT [0:0]
>>>>>     -A POSTROUTING -o eth+ -j MASQUERADE
>>>>>     -A POSTROUTING -o em2 -j MASQUERADE
>>>>>     COMMIT
>>>>>     *filter
>>>>>     :INPUT ACCEPT [0:0]
>>>>>     :FORWARD ACCEPT [0:0]
>>>>>     :OUTPUT ACCEPT [0:0]
>>>>>     -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
>>>>>     -A INPUT -p icmp -j ACCEPT
>>>>>     -A INPUT -i lo -j ACCEPT
>>>>>     -A INPUT -i eth+ -j ACCEPT
>>>>>     -A INPUT -i em2 -j ACCEPT
>>>>>     -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
>>>>>     -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
>>>>>     -A FORWARD -p icmp -j ACCEPT
>>>>>     -A FORWARD -i lo -j ACCEPT
>>>>>     -A FORWARD -i eth+ -j ACCEPT
>>>>>     -A FORWARD -i em2 -j ACCEPT
>>>>>     -A FORWARD -o eth+ -j ACCEPT
>>>>>     -A FORWARD -o em2 -j ACCEPT
>>>>>     -A INPUT -j REJECT --reject-with icmp-host-prohibited
>>>>>     -A FORWARD -j REJECT --reject-with icmp-host-prohibited
>>>>>     COMMIT
>>>>>
>>>>>     *ltsp-server-initialize gives me a lot of EM. But the
>>>>>     thinclient boots, so maybe that's not a problem.
>>>>>
>>>>>     *when booting the thinclient, I get an EM : unsupported device
>>>>>     : processor centaurhauls
>>>>>       The thinclient is an HP hstnc-004 that I used on 3 different
>>>>>     thinclient systems in the past 3 years.
>>>>>       It would be a real problem if it doesn't work with this image.
>>>>>
>>>>>     *when booted, I am able to log in, and adapt language and
>>>>>     other settings in lts.conf. But I can't get rid of the green
>>>>>     glare that is over the
>>>>>     screen.
>>>>>     Could be the Acer monitor, but it's fine when attached to
>>>>>     other devices.
>>>>>
>>>>>     Any input on these issues would be greatly appreciated.
>>>>>
>>>>>     greetings, J.
>>>>>
>>>>>
>>>>>     Op 03-06-13 20:20, Barry Cisna schreef:
>>>>>>     Hello All,
>>>>>>
>>>>>>     Replying to my previous post.
>>>>>>     For completeness.
>>>>>>
>>>>>>     The fix for the 'stuck' Booting Linux line was I did not have
>>>>>>     nfs
>>>>>>     service started at boot on the server and had to manually enter
>>>>>>     the /opt/ltsp dir in nfs/exports.
>>>>>>     After this clients will boot fine.
>>>>>>
>>>>>>     Take Care,
>>>>>>     Barry
>>>>>>
>>>>>>
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>>>>>
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