Matt, I do agree with your noteworthy note. And, yes, you are correct.
Unfortunately, I don't have another box to test as the server. I am going
to try the alternate NICs, though, once I find which carton they have been
exiled to.
I would like to post what a few of the configurations in my Ed/Ubuntu
installations look like, as they are significantly different and work
differently w/regard to LTSP, if y'all don't mind.
With each recent re/installation, I chose the same ... for Ubuntu, F4
brought up the Modes dialog and I selected to install an LTSP server ...
for Edubuntu I elected to install the LTSP server at the graphical prompt.
I haven't done a completely manual LTSP installation in a non-LTSP
environment for awhile, but as my result was the same.
I'm going to make two more posts. The first with the Ubuntu LTSP config
stuff (ifconfig, dhcpd.conf, etc.) and the second with the Edubuntu stuff.
I hope that's acceptable. Here goes ...
On Wed, Jul 17, 2013 at 3:45 AM, Matt Johnson <johnson...@gmail.com> wrote:
> What is particularly noteworthy, is that you're having exactly the same
> problem with a variety of client hardware. Have I understood that correctly?
>
> Have you tried using one of the less powerful machines as the server
> (obviously, only for testing purposes) such that you can identify your
> server as the problem. Could you 'borrow' a network card from another
> machine to test in the server (though, perhaps not purchase...).
>
> --
> Matt
>
>
> On 16 July 2013 17:32, James Butler <stupidscr...@gmail.com> wrote:
>
>> Grrr. Bought a new Linksys hub to try. The only systems connected to it
>> are the Edubuntu box and the HP Pavillion, and they are not connected to
>> anything else ... just to each other. Basically a fancy crossover
>> connection. Same result as with the Netgear hub.
>>
>> Would someone point me to instructions on how to add NIC drivers to the
>> initramfs environment, as vagrant noted on 2013-07-15 21:29?
>>
>> Is there some kind of admin management software for LTSP? I have seen
>> mention of 'ltspadmin', but have not yet found it.
>>
>> Thanks for all of your thinking, so far. Still hoping to get this going.
>> If a bunch of educators running crappy hardware can do it, then by gum an
>> admin with non-crappy gear should be able to do it, too. :)
>>
>>
>>
>> On Tue, Jul 16, 2013 at 2:22 AM, Matt Johnson <johnson...@gmail.com>wrote:
>>
>>> I, too, had this problem - caused by an unknown dhcp server on the
>>> network. The clients were picking up an address and then it went wrong.
>>>
>>> I also once had a similar issue with an old netgear hub (something to do
>>> with auto-negotiation failing) - it only was a problem at *boot* and *
>>> only* with ltsp clients. Might be worth swapping it out if you have
>>> another to hand.
>>>
>>> --
>>> Matt
>>>
>>>
>>> On 15 July 2013 22:22, James Butler <stupidscr...@gmail.com> wrote:
>>>
>>>> Thank you for the reply.
>>>>
>>>> My setup is simply the Ubuntu LTSP box connected via 1 NIC to a hub,
>>>> and a client connected by a single NIC to the same hub.
>>>>
>>>> There are no other computers/routers connected, so I assume that the
>>>> DHCP server on the Ubuntu box is the only one active.
>>>>
>>>> Please note that each client successfully receives an address from the
>>>> DHCP server on the Ubuntu box, and each one successfully makes it past the
>>>> TFTP process.
>>>>
>>>> I'd like to add that the last command visible before the screen
>>>> flickers and I enter initramfs is:
>>>> <code>
>>>> Trying to load: pxelinux.cfg/default [ok]
>>>> </code>
>>>>
>>>> So it gets that far and finds the file on the Ubuntu box ... it just
>>>> craps out after that.
>>>>
>>>> I'm guessing at this point, due to the consistency of the messages I
>>>> receive, that the problem is not with the clients, but with something on
>>>> the Ubuntu box.
>>>>
>>>>
>>>>
>>>> On Mon, Jul 15, 2013 at 1:01 PM, James McQuillan <j...@mcquil.com>wrote:
>>>>
>>>>> is there any chance you have 2 DHCP servers on your network?
>>>>>
>>>>> perhaps once DHCP server is providing the config that is used during
>>>>> the PXE phase, and a different DHCP server is providing different values
>>>>> to
>>>>> the kernel.
>>>>>
>>>>>
>>>>> Jim McQuillan
>>>>> j...@ltsp.org
>>>>>
>>>>>
>>>>> On Mon, Jul 15, 2013 at 3:47 PM, James Butler
>>>>> <stupidscr...@gmail.com>wrote:
>>>>>
>>>>>> Master LTSP System: HP Proliant 4-drive RAID (1.4TB total), 12GB RAM
>>>>>> Thin Clients: Dell Optiplex (old), Sony Vaio (2012), HP Pavillion
>>>>>> (2013)
>>>>>> Connection: Proliant eth0 into Netgear hub, Thin client eth0 into
>>>>>> same Netgear hu
>>>>>> (exactly as shown in the UbuntuLTSP/LTSPWiring diagram from the docs
>>>>>> wiki)
>>>>>>
>>>>>> I've been trying to get LTSP going for several days, using both
>>>>>> Ubuntu LTS 12.04 and now Edubuntu LTS 12.04.
>>>>>>
>>>>>> The OS installs fine, no problems in either case, but the LTSP
>>>>>> installation is ... problematic, to say the least.
>>>>>>
>>>>>> There is no problem for the clients to get an IP address from the
>>>>>> DHCP server, and they all log in via TFTP.
>>>>>>
>>>>>> However, in every case, seemingly no matter which config file I
>>>>>> modify or how my stuff is connected, I can only boot the thin clients
>>>>>> into
>>>>>> the BusyBox initramfs ... never into a graphical interface, and I always
>>>>>> receive the same messages, viewed by pressing CTL+ALT+F7 once I'm in
>>>>>> initramfs regardless of the machine.
>>>>>>
>>>>>> Here are the messages I receive in their entirety (CTL+ALT+F7). Same
>>>>>> message whether I do a fresh install and try to connect without messing
>>>>>> with anything or after any of my multiple attempts to resolve the
>>>>>> problem:
>>>>>> <code>
>>>>>> No interfaces found! Aborting...
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> ipconfig: no devices to configure
>>>>>> /scripts/local-top/nbd: .: line 34: can't open '/tmp/net-*.conf'
>>>>>> mount: mounting /dev/nbd0 on /root failed: Input/output error
>>>>>> /scripts/init-bottom/ltsp: line 27: panic: not found
>>>>>> chroot: can't execute '/usr/bin/test/': No such file or directory
>>>>>> mount: mounting /root on /rofs failed: Invalid argument
>>>>>> mount: mounting /rofs on /root/rofs failed: Invalid argument
>>>>>> cp: can't stat '/tmp/net-*.conf': No such file or directory
>>>>>> mount: mounting /dev on /root/dev failed: No such file or directory
>>>>>> mount: mounting /sys on /root/sys failed: No such file or directory
>>>>>> mount: mounting /proc on /root/proc failed: No such file or directory
>>>>>> Target filesystem doesn't have requested /sbin/init-ltsp.
>>>>>> No init found. Try passing init= bootarg.
>>>>>> </code>
>>>>>>
>>>>>> I do realize that this indicates a failure to accomplish things AFTER
>>>>>> a failure to connect (so things didn't get found because there was no
>>>>>> connection) ...
>>>>>>
>>>>>> HOWEVER ... did not the client connect and get an address from DHCP
>>>>>> and then, further, successfully log in through TFTP?
>>>>>>
>>>>>> It did ... so why the failure following the TFTP exchange? What's it
>>>>>> looking for?
>>>>>>
>>>>>> I have tried everything I could find online, in any documentation and
>>>>>> through searching, including:
>>>>>>
>>>>>> - Install NFS/NBD server
>>>>>> - Modify /etc/ltsp/dhcpd.conf with every conceivable variant (but not
>>>>>> a problem to get an IP via DHCP)
>>>>>> - Modify /tftp/ltsp/lts.conf with many variants
>>>>>> - Rebuild client, update sshkeys/image
>>>>>>
>>>>>> and many more over the past several days. I have also re-installed
>>>>>> both of the OSs at least 5 times, first letting them setup LTSP for me
>>>>>> and
>>>>>> then with me setting it up manually after the main OS was installed.
>>>>>>
>>>>>> I had high hopes for Edubuntu, realizing that it is a distro intended
>>>>>> for non-admins, but I am in the same spot.
>>>>>>
>>>>>> I have found no messages online showing the same errors as I am
>>>>>> receiving ... most talk about a kernel panic or network card drivers ...
>>>>>> so
>>>>>> I am posting here.
>>>>>>
>>>>>> I super-appreciate any help at all resolving this problem. Note that
>>>>>> the links to the Edubuntu troubleshooting docs are non-functional.
>>>>>>
>>>>>> Thanks in advance for anything at all.
>>>>>>
>>>>>>
>>>>>> ------------------------------------------------------------------------------
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>>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>>>>>> _____________________________________________________________________
>>>>>> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
>>>>>> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
>>>>>> For additional LTSP help, try #ltsp channel on irc.freenode.net
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> See everything from the browser to the database with AppDynamics
>>>>> Get end-to-end visibility with application monitoring from AppDynamics
>>>>> Isolate bottlenecks and diagnose root cause in seconds.
>>>>> Start your free trial of AppDynamics Pro today!
>>>>>
>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>>>>> _____________________________________________________________________
>>>>> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
>>>>> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
>>>>> For additional LTSP help, try #ltsp channel on irc.freenode.net
>>>>>
>>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> See everything from the browser to the database with AppDynamics
>>>> Get end-to-end visibility with application monitoring from AppDynamics
>>>> Isolate bottlenecks and diagnose root cause in seconds.
>>>> Start your free trial of AppDynamics Pro today!
>>>>
>>>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>>>> _____________________________________________________________________
>>>> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
>>>> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
>>>> For additional LTSP help, try #ltsp channel on irc.freenode.net
>>>>
>>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> See everything from the browser to the database with AppDynamics
>>> Get end-to-end visibility with application monitoring from AppDynamics
>>> Isolate bottlenecks and diagnose root cause in seconds.
>>> Start your free trial of AppDynamics Pro today!
>>>
>>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>>> _____________________________________________________________________
>>> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
>>> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
>>> For additional LTSP help, try #ltsp channel on irc.freenode.net
>>>
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> See everything from the browser to the database with AppDynamics
>> Get end-to-end visibility with application monitoring from AppDynamics
>> Isolate bottlenecks and diagnose root cause in seconds.
>> Start your free trial of AppDynamics Pro today!
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
>> _____________________________________________________________________
>> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
>> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
>> For additional LTSP help, try #ltsp channel on irc.freenode.net
>>
>>
>
>
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
> _____________________________________________________________________
> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
> For additional LTSP help, try #ltsp channel on irc.freenode.net
>
>
------------------------------------------------------------------------------
See everything from the browser to the database with AppDynamics
Get end-to-end visibility with application monitoring from AppDynamics
Isolate bottlenecks and diagnose root cause in seconds.
Start your free trial of AppDynamics Pro today!
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_____________________________________________________________________
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