hi brian,

regarding your problem:
"error in /scripts/nfs-bottom/tcos_squashfs: //root/sfs/base.sfs not found"

i recommend you open a ticket at:
https://issues.openthinclient.org/

so it's way easier to handle attachments and log-files.


regards,
martin


Clarke, Brian schrieb:
> Martin,
> 
> Sorry to bother you again, but it seems the problems aren't over. It
> seems like the client only successfully boots sometimes. Other times it
> stops on the premount faze and gives some errors like "error in
> /scripts/nfs-bottom/tcos_squashfs: //root/sfs/base.sfs not found" etc...
> I also attached the service log which has the last entry of   " INFO   |
> jvm 1    | 2010/05/03 15:44:34 | 15:44:34,814 INFO  [AbstractPXEService]
> Expiring expired conversation
> Conversation[1/00:23:7d:cb:dd:ab/2127289771]: age=67969, client=[Client
> name=TC3895, description=null, ip=0.0.0.0, location=English
> applicationGroups={}, applications={}]"
> 
> I tried building the OTC server from scratch in case some things got
> messed up some how. But the client still only boots properly
> periodically. Could this still be related to network communication
> issues?
> 
> Regards,
> 
> Brian
> 
> -----Original Message-----
> From: Clarke, Brian 
> Sent: Monday, May 03, 2010 11:18 AM
> To: 'openthinclient-user@lists.sourceforge.net'
> Subject: RE: [openthinclient-user] OTC server with clientsin
> differentsubnets
> 
> Hey Martin,
> 
> Seems like we were able to get it working. The network guys said they
> used some sort of option to forward the broadcasts, perharps something
> similar to the IP helper address system. Anyways, thanks again for the
> advice because it seemed to point them in the right direction. I guess
> my only other question is, can the OTC server reboot thin clients
> remotely without having to log in to each thin client individually?
> 
> Regards,
> 
> Brian
> 
> -----Original Message-----
> From: Clarke, Brian 
> Sent: Monday, May 03, 2010 8:25 AM
> To: 'openthinclient-user@lists.sourceforge.net'
> Subject: RE: [openthinclient-user] OTC server with clientsin
> differentsubnets
> 
> Thanks Martin, I will talk to them again. We actually tried option 66
> and 67 with those options and also added a thin client manually, but for
> some reason when I checked the logs the client still wasn't contacting
> the OTC server. I will look into these options further and I will get
> them to test the IP helper address. Thanks again for your help.
> 
> Regards,
> 
> Brian Clarke
> 
> -----Original Message-----
> From: Martin Kreiner [mailto:m.krei...@levigo.de] 
> Sent: Monday, May 03, 2010 8:15 AM
> To: openthinclient-user@lists.sourceforge.net
> Subject: Re: [openthinclient-user] OTC server with clientsin
> differentsubnets
> 
> hi brian,
> 
> i'am pretty sure the concerns of your network admins are unnecessary.
> if you have multiple ip helper-addresses defined, any UDP broadcasts
> recieved 
> on the allowed udp ports will be unicasted to EACH of the IP helpers.
> as the openthinclient DHCP proxy does not interfere with DHCP servers
> it's 
> absolutely save to add the second ip helper-addresses.
> 
> furthermore this is best practice for using DHCP proxies and i've seen
> this 
> setup working dozens of times at more complex otc installations.
> 
> however, there is an alternative solution for your problem. apparently
> you will 
> lose the "auto-discover" feature of openthinclient and you have to add
> your 
> thin clients manually:
> 
> you can add two DHCP options to tell your thin client where to boot from
> and 
> which Network Bootstrap Program (NBP) to use. these options depend on
> your DHCP 
> implementation and should be set to:
> 
> next-server/TFTP Boot Server Host (DHCP Option 66):
> <IP_OR_NAME_OF_YOUR_OTC_SERVER>
> 
> filename/Bootfile Name (DHCP Option 67):
> pxelinux.0 or /pxelinux.0
> 
> 
> regards,
> martin
> 
> 
> 
> Clarke, Brian schrieb:
>> Thanks again for the reply Martin,
>>
>> It seems that the network guys had considered this. But, they said
> that
>> since they already have an ip helper-address assigned to the dhcp
>> server, that if they configured another IP-helper address in the
> system,
>> that the clients would only look to either the DHCP server OR the OTC
>> server, meaning that both can't be configured at the same time. Does
>> this sound accurate to you? Perhaps I'll ask them about it again. But
> I
>> was hoping that there were other configurations that we could do, say
> on
>> the DHCP server, that would simply point the clients to the OTC
> server.
>> Let me know what you think.
>>
>> Regards,
>>
>> Brian
>>
>> -----Original Message-----
>> From: Martin Kreiner [mailto:m.krei...@levigo.de] 
>> Sent: Monday, May 03, 2010 7:10 AM
>> To: openthinclient-user@lists.sourceforge.net
>> Subject: Re: [openthinclient-user] OTC server with clientsin
>> differentsubnets
>>
>> hi brian,
>>
>> as there are no *NIX machines involved you won't hit SUITE-39: good.
>>
>> simply spoken, you have to make sure that the otc server will receive
>> the 
>> broadcast DHCP discover packages sent by your thin clients. the otc
>> server 
>> basically needs the same switch/ip helper setup as you DHCP server. so
>> what you 
>> have to do is:
>>
>> - make sure the otc server gets a persistent IP (via DHCP or static)
>> - add an ip helper-address of your otc server IP to any swich which
> has
>> already 
>> an ip helper-address entry of your DHCP server
>>
>> for detailed informations have a look at page 18 in Intel's "Preboot
>> Execution 
>> Environment (PXE) Specification":
>> http://download.intel.com/design/archives/wfm/downloads/pxespec.pdf
>>
>>
>> cheers,
>> martin
>>
>>
>> Clarke, Brian schrieb:
>>> Hi Martin
>>>  
>>> The OTC server is running on windows 2003 server R2. I have it
>> installed on a virtual machine on vmware workstation 6.x.  Like it
> said,
>> it worked fine when it was on the same subnet as the Thin clients. But
>> it doesn't work at all when on a different subnet. The host machine
>> which is hosting the virtual machines is also running windows server
>> 2003 R2.  Any assistance would be greatly appreciated.
>>>  
>>> regards,
>>>  
>>> Brian
>>>
>>> ________________________________
>>>
>>> From: Martin Kreiner [mailto:m.krei...@levigo.de]
>>> Sent: Fri 4/30/2010 5:03 PM
>>> To: openthinclient-user@lists.sourceforge.net
>>> Subject: Re: [openthinclient-user] OTC server with clients in
>> differentsubnets
>>>
>>> hi brian,
>>>
>>> to give you further instructions i need to know the operating system
>> your
>>> openthinclient server is running and if there is any kind of
>> virtualisation
>>> layer in between.
>>> just to make sure you will not hit the following problem:
>>> https://issues.openthinclient.org/otc/browse/SUITE-39
>>>
>>>
>>> regards,
>>> martin
>>>
>>> Clarke, Brian schrieb:
>>>> Good day,
>>>>
>>>>
>>>>
>>>> I'm a new user of openthinclient and I am unable to get the OTC
>> server
>>>> to work across multiple subnets.
>>>>
>>>>
>>>>
>>>> We have 3 or 4 different subnets (192.168.210, 192.168.212 etc...)
>> for our
>>>> clients. The OTC server is on a another subnet which is strictly for
>>>> servers -  172.30.1.   The Dhcp server is on its own subnet also,
> but
>>>> they have a IP helper configured so that it works for all of the
>> client
>>>> subnets (excluding the 172.30.1 subnet which doesn't use DHCP). If I
>>>> have the OTC server on the same subnet as the client it will work.
>>>> However, if I have it on the server subnet (172.....) it doesn't
> work
>> at
>>>> all.  I have checked the logs on the OTC server and they don't show
>> any
>>>> incoming traffic from the other subnets. What do I need to configure
>> to
>>>> get this working? My knowledge of networking is a bit limited when
> it
>>>> comes to switches and what have you, so please explain as easily as
>>>> possible. Although I don't manage the switches or DHCP servers, I
>> know
>>>> the guys who do, so I can tell them what to do.  Any assistance
> would
>> be
>>>> much appreciated.
>>>>
>>>>
>>>>
>>>> Regards,
>>>>
>>>>
>>>>
>>>> Brian Clarke

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