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*nix Thread, LTSP TFTP Boot Problem in Technical; Ubuntu 12.04 Desktop. I cant ping the clinet no....
  1. #16

    FN-GM's Avatar
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    Ubuntu 12.04 Desktop. I cant ping the clinet no.

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    twin--turbo's Avatar
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    Have you got a lan card with a different chipset you can try? rulling out any other hardware. Have you tried it in the same network socket as the other to rule out any network wiredness? Do you have a similar machien you can try to rule out this one just being odd.

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    On the same socket i have had 3 different types of machine on. This is the only one that gives the issue. I have got another identical machine and that gives the issue as well. I have found this - PXE-E32 TFTP open timeout

    how do you increase the block size please?

  4. #19

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    Good question,

    you need to find the tftp config , normaly that would have ben an xinetd service but that may have been replaced now, there may be a tftp config fiel in /etc/ worth a look.

    I can have a look tonight on my laptop, none of our ubuntu servers here have tftp on them.

    Rob

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    FN-GM (21st June 2012)

  6. #20
    cpjitservices's Avatar
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    I had that... It was missing files in the TFTP root directory on the server.....

  7. #21

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    Quote Originally Posted by cpjitservices View Post
    I had that... It was missing files in the TFTP root directory on the server.....
    But it works fine on every other type of NIC just not this one. does surely it cant be that?

  8. #22

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    if your running tftpd-hpa which you probably are...

    cd /etc/default/
    nano tftpd-hpa

    in the option quotes add --blocksize 512

    save it and then restart tftpd

    /etc/init.d/tftpd-hpa restart


    Installed and changed that on the laptop here and the service loaded without bombing..

    Rob

  9. #23

    twin--turbo's Avatar
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    Also, is the machine that's failing a different system architecture to the server and other clients? I am strugling to find a list of the supported architecture options.

    https://help.ubuntu.com/community/Ub...SPQuickInstall

    Rob

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    FN-GM's Avatar
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    Quote Originally Posted by twin--turbo View Post
    Also, is the machine that's failing a different system architecture to the server and other clients? I am strugling to find a list of the supported architecture options.

    https://help.ubuntu.com/community/Ub...SPQuickInstall

    Rob
    Its the same.

    Quote Originally Posted by twin--turbo View Post
    if your running tftpd-hpa which you probably are...

    cd /etc/default/
    nano tftpd-hpa

    in the option quotes add --blocksize 512

    save it and then restart tftpd

    /etc/init.d/tftpd-hpa restart


    Installed and changed that on the laptop here and the service loaded without bombing..

    Rob
    Sorry to sound thick but can you tell me what to type in to save where do i put the options please? Sorry i am really new with Linux.

    Thanks

  11. #25

    twin--turbo's Avatar
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    cd /etc/default

    nano tftpd-hpa

    lock at the last line of the file ( I think ) and there will be some quotes for options.. add in --blocksize 512

    and save the file.

    rob

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    FN-GM (22nd June 2012)

  13. #26

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    Changing the blocksize doesnt help

    In the machines that seem to not work, they do if i install an intel network card.

    Any other thoughts please?

  14. #27

    twin--turbo's Avatar
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    Quote Originally Posted by FN-GM View Post
    Changing the blocksize doesnt help

    In the machines that seem to not work, they do if i install an intel network card.

    Any other thoughts please?
    So we have nailed it to the lan card then?

    You could see if you can flash the boot rom to the latest version.

    Realtek

    May kill the card though.

  15. #28

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    You could also try a USB bootstic from ROM-o-Matic to see if it boots the second stage PXE correctly.

  16. #29

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    I have had a similar problem with a realtek card in the past (can't remember the model) and i was using RIS and WDS. We found out if you hit the pause/break key when you see TFTP.... like in your screenshot and leave it 15 to 30 seconds then press any key it will drop in.
    I was convinced the issue was caused by spanning tree being miss configured but never got round to doing more testing

  17. #30

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    SPT may cause an issue, had something similar on a Cisco CAT4006 running CATOS which took too long to put the port in the forwarding state. It took a lot of diging to find a little documented host command. We had it sort of working by putting a dumb L2 switch in the chain so the core switch port was up constantly.

    Not a hugely likely cause though..

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