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Re: [Fwd: [K12OSN] RE: K12ltsp login]

OK, it seems that I had my preference set to not receive a copy of my own posts so I didn't see them at all.

Anyone have any ideas today? I'm seriously considering scrapping the whole deal and going back to work on the *working* fc6 server instead. I know its horribly outdated etc, but it is working whereas this new setup - while its the latest (greatest???) - doesn't. It seems implausible that I cannot take a working config from the old fc6 box and make it work on the 'new and improved' Centos5EL server. While I inherited the fc6 box already working - it does work, so someone was able to configure it to get that way. Despite the collective intelligence and experience of the entire list (and others I've posted this to), it doesn't seem that there *is* any answer to make this work. Is this where we are headed towards with Linux in general and LTSP specifically? Its so advanced that it simply cannot be configured to work in the manner I choose? Is my setup so unique that no one has encountered it before?

Dan Young wrote:
Hi Bob,

I've seen all the messages on the list. I think nobody had a quick answer.

Dan Young <dyoung mesd k12 or us>
Multnomah ESD - Technology Services

2009/1/21 Bob Mead <bmead lane k12 or us>:
I tried to send this three times yesterday, never did see it come up on the
list. Any ideas why not?

I did remove the no_root_squash option from my /etc/exports file and
restarted the nfs daemons (portmap, nfs-common and nfs-kernel-server in
that order). Just to be sure, I restarted the k12ltsp server, and I get
the same results - i.e.- after I enter my user name and password the
login screen goes blank and eventually returns to the login screen again
asking for my username. ???

So I've conquered the .dmrc problem, got the ltsp box (apparently)
talking to the ldap server, successfully remote mounting users /home
directories via nfs and yet I still cannot login.

Does anyone have any further ideas on how to make this work? I'm still
thinking along the lines of somehow tracking the authentication requests
to the ldap server to see if I am getting that far. And if I am, how are
those requests being handled by the ldap server?

I'm starting to get anxious about the amount of troubles I am having
getting this to work. Perhaps last week's posts re: the complexity of
linux and ltsp REALLY are worth paying some attention to...

Thanks in advance for any help!!

Rob Owens wrote:
On Fri, Jan 16, 2009 at 10:52:09AM -0800, Bob Mead wrote:

From: Rob Owens <rowens ptd net>
Subject: Re: [K12OSN] Re: K12ltsp login
To: "Support list for open source software in schools."
       <k12osn redhat com>
Message-ID: <20090115000245 GJ18672 junker owens net>
Content-Type: text/plain; charset=us-ascii

On Wed, Jan 14, 2009 at 03:20:06PM -0800, Bob Mead wrote:
   The root user may not be allowed to change permissions of the files on
an nfs-mounted /home directory.  NFS defaults to the "root_squash" option.
 You could try exporting /home with the "no_root_squash" option. -Rob

Thanks Rob, that fixed it! Unfortunately it brought up another problem:
now my login screen goes blank after I enter my username and password and
eventually returns to start all over again, i.e.- asking for username and
password. Any help would be greatly appreciated. Thanks,

I don't know why that would happen, but...

If you have completed all the permissions/ownership changes that you think
you need, and you don't need to create users' home directories on login,
then you may no longer need the "no_root_squash" option.  I don't think that
option is required for "normal" LTSP usage.  Try removing that option and
restarting the nfs server, then see if your server behaves normally.   Note
that in the future instead of setting the "no_root_squash" option to change
permissions on the nfs mounted files, you could ssh into the nfs server as
root and change them there.


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fn:Bob Mead
org:South Lane School District;Technology Services Center
email;internet:bmead lane k12 or us
title:Network Specialist

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