Edubuntu 12.04 LTSP - Fat clients hangs on shutdown with Kernel 3.8 and higher

[Nick Fenger]

Hi there,

Got thin and fat client shutdowns to work on a variety of client hardware
by issuing these commands (not entirely sure which one does the trick):

   pkill screen-session
   /etc/init.d/udev stop
   pkill pulseaudio
   alsa --force-unload
   halt -fp

Struggled with this for some time as well, it's a nuisance for sure.

-Nick



On Fri, May 9, 2014 at 9:54 PM, Alkis Georgopoulos <alkisg at gmail.com> wrote:

> Hi,
>
> try updating $CHROOT/usr/share/ltsp/nbd-disconnect with the newest
> version from
> http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/
> view/head:/client/share/ltsp/nbd-disconnect
>
> Delete ltsp-shutdown.conf, remove the LDM patch, run ltsp-update-image and
> test.
>
> If it works, you could request an SRU (update release) for nbd-disconnect.
>
> Στις 09/05/2014 11:52 μμ, ο/η X-Dimension έγραψε:
>
>  Hello,
>>
>> we are using LTSP with Edubuntu 12.04 for some years now and it works
>> fine except a
>> shutdown problem, we had over one year ago with our Zotac Zbox clients.
>> We had fixed this problem by using a patched version of LDM that is
>> starting "poweroff -fp" instead
>> of "poweroff" and also with an old "ltsp-shudown.conf" from Edubuntu
>> 11.xx, that also forces
>> to use "poweroff -fp". The ltsp-shutdown.conf was needed to fix the
>> shutdown problem, when using Epoptes to power off the clients.
>>
>> This Workaround was working fine with the Zotac Zbox, but we have now
>> some Shuttle DS437 clients, that needs a newer Kernel version to run
>> smoothly.
>> After updating our LTSP images to Kernel 3.8.x all clients hangs again
>> on shutdown when using the Epoptes management tool to poweroff the
>> clients.
>> The only way to successfully poweroff a client is to use the patched LDM
>> version with "poweroff -fp".
>> After switching back to kernel 3.5.x, the shutdown problem is gone, but
>> the Shuttle DS437 have some graphics problems and are running very slowly.
>>
>> Can anybody help me to fix this shutdown problem when using a newer
>> Kernel version?
>> It looks like the ltsp-shutdown.conf have no effect anymore when using
>> Kernel 3.8 and later,
>> but i don't know why.
>>
>> Thx
>>
>>
>
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