Is it just me, or is LTSP a mess?

kjetil knudsen knukje at
Tue Sep 9 16:00:57 BST 2008

We have also the exact same experience. We are a big school with over 400
clients and 9 servers that run Ubuntu Hardy. It all worked superb with the
K12LTSP package with Fedora. Now everything is a mess, and we are
considering switching back to K12LTSP. The observation I have done indicate
that our fileserver is overloaded with some kind of traffic everytime a
class log in which results in a ever lasting long queue of processes waiting
for respons from the filserver. I thought that this was where the dog was
burried. But the problem is the same with a shiny new fileserver that indeed
should handle the workload (There should.not be any workload at all
here)....And of course we also have the processes that hangs on the LTSP
servers that you already mentioned. To me it seems like Ubuntu Hardy is not
up for the job yet.. If there is no solution in the near future we have to
go back to K12LTSP. I really like Ubuntu, but we have to have a system that
really works and that you can trust beeing used by hundreds of pupils.
K12LTSP did this....

Kjetil Knudsen
Grødem skole, Norway

On Tue, Sep 9, 2008 at 3:28 PM, Todd O'Bryan <toddobryan at> wrote:

> OK, first let me say that I'm using the LTSP package on Ubuntu Hardy, not
> an Edubuntu install, so if that's the source of my problems, let me know and
> I'll install whatever I need to to get the Edubuntu goodies that I'm
> missing. My clients are Devon IT 6020P's--128 MB of RAM.
> Here's a recap of my last several classes. Students log in, try to work,
> and have hard freezes of the clients. I presume these freezes are the result
> of the pixmap caching problem that people have mentioned, and setting
> X_RAMPERC (or XRAMPERC, I've seen both spellings online) doesn't help at
> all. What's more, the problem occurs with OpenOffice and a programming
> environment I use, not just Firefox, so the Firefox 3 environment setting
> trick only solves some of my problems.
> What's more, whenever the client freezes, students can't log back in, so I
> spend a great deal of my time running "sudo slay studentlogin" instead of
> teaching.
> Am I doing something wrong, or are things far less stable than they should
> be?
> Todd O'Bryan
> duPont Manual High School
> Louisville, Kentucky
> P.S. I'm considering switching back to the K12LTSP package, just because
> it's so rock-solid, but I'd hate to give up the Ubuntu/Debian goodness I've
> come to rely on. The thing Eric Harrison managed to do is create all the
> settings and extra files to make LTSP work out of the box. The cool thing
> about Debian's packaging system is that you can change settings, add
> packages, and do all the other cool stuff that he does as part of installing
> a package. So if we can figure out how to get everything working, creating
> something that works out of the box should be doable.
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