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

[Alkis Georgopoulos]

Is there any reason to change the newer version of the nbd-disconnect 
script?
I haven't seen it fail to shutdown any client...


Στις 19/05/2014 09:59 μμ, ο/η Nick Fenger έγραψε:
> 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
> <mailto: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
>     <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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