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    FOG 33b - installation - HP Elite 8300 SFF

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    FOG Problems
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    • A
      Alistair
      last edited by

      That’s a good point about multicast because I have just set up a new multi VLAN network on pre-existing switches.
      Maybe multicast has been disallowed. hmmm

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      • Tom ElliottT
        Tom Elliott
        last edited by

        Don’t forget, multicast traffic only sends broadcast traffic across it’s own subnet. If you want broadcast traffic to pass through to other VLAN’s you’d likely need to enable ip broadcast forwarding so it can cross subnets into the realm’s you’re specifically requesting.

        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

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        • A
          Alistair
          last edited by

          Although we have 6 VLANS, everything we are talking about here is in the same VLAN-1 and physically connected to the same switch.
          I’m not sure how to find out if multicast has been disabled or not. But it was not disallowed before, before we set up the VLANS.
          Isn’t it normal by default to have multicast enabled in each VLAN?

          Our gateways for all our VLANS are on a new PaloAlto PA-200 firewall. Not sure if that is creating a problem for multicast packets.
          I’m looking at the PaloAlto user interface but cannot find any reference to multicast traffic yet.

          But isn’t it normal by default to have multicast enabled in each vlan?

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          • B
            BPSTravis Developer
            last edited by

            That would depend on your device. As for finding the options, again… google searches will save your life…

            We don’t mind helping out but you need to start searching for the basic info you are looking for especially when it’s related to your own hardware.

            [SIZE=12px]signature:[/SIZE]
            [QUOTE]I think I know things, but I really don't. You shouldn't follow any advice I give. - BPSTravis[/QUOTE]

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            • A
              Alistair
              last edited by

              [I]We don’t mind helping out but you need to start searching for the basic info you are looking for especially when it’s related to your own hardware. [/I]

              Absolutely.

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              • A
                Alistair
                last edited by

                The Cisco switch says: By default, all Multicast frames are flooded to all ports of the VLAN

                Palo Alto - have not found any relevant info. The guy that helps me with the PaloAlto is uncontactable.

                One thing is clear here - everything is in 1 broadcast domain, so it’s unlikely that multicasting has been filtered.

                I’m stuck.

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                • Jaymes DriverJ
                  Jaymes Driver Developer
                  last edited by

                  I think you are chasing a ghost in the machines. You need to concentrate on a single issue and solve it before moving forward. And I doubt the firewall is the issue. The firewalls position is between your network and the world to act as a bouncer. Your fog server doesn’t send information to the world to come back to the network, it sits on the network and sends information on the local network ONLY, if your fog server is being passed through your firewall, something is wrong. Therefore it is highly unlikely that the firewall would cause the issue. NOW there could be a firewall installed in linux that could cause some issues, but I don’t think that pertains here.

                  Try eliminating the switch gear and attempt to image on a small hub or router (You will need something doling ip addresses to pxe boot) and try your set up on a few machines, if the multicast completes as expected you need to look at the settings in your network on your switch gear. If you have to set up a “test” environment on a few old hubs and try the set up, don’t use the main switches.

                  WARNING TO USERS: My comments are written completely devoid of emotion, do not mistake my concise to the point manner as a personal insult or attack.

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                  • A
                    Alistair
                    last edited by

                    I’m so tired and stressed out about this that I didn’t think of the obvious Jaymes that you did think of.
                    I did what you said.
                    fogserver, win server 2012, my PC and 2 clients (I used the win server because it was quicker - it had DHCP)

                    Same result, waiting for image… BUT.

                    Rebooted fogserver
                    TFTP …
                    Restarted tftpd-hpa

                    Then multitasking worked to the new PCs!!!
                    Have to go home now. Thanks Jaymes.

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                    • A
                      Alistair
                      last edited by

                      Probably need to implement the delayed startup of TFTP that’s been mentioned earlier.
                      Obviously that will solve the TFTP … (waiting) on the clients.

                      But could there also be a connection between this and the image not being multicasted?

                      I hope a delayed startup of tftpd-hpa will also solve the multicast problem and eliminate the need to reboot fogserver.

                      When it comes to computers, I just seem to attract bugs and issues.
                      Computers are not impressed with my natural charm and charisma

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                      • A
                        Alistair
                        last edited by

                        Tom I just read your comment from last year:
                        [I]Has anyone in this thread found this issue with 0.33b? Maybe I can append/sed the command into the installation so nobody has to worry about this! [/I]

                        Sounds like a good idea[I].[/I]

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                        • Jaymes DriverJ
                          Jaymes Driver Developer
                          last edited by

                          For now I would do as you suggested, run a delayed start up of the command, or just restart the service on each reboot. You are welcome for the the suggestion, don’t feel bad when I get stressed about a fog issue someone else normally comes up with an easy test for me too, just paying it forward 😉

                          WARNING TO USERS: My comments are written completely devoid of emotion, do not mistake my concise to the point manner as a personal insult or attack.

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                          • A
                            Alistair
                            last edited by

                            TFTP is still not running despite the mod to /etc/rc.local

                            Here is a copy of the file. Is there anything wrong?

                            #!/bin/sh -e

                            rc.local

                            This script is executed at the end of each multiuser runlevel.

                            Make sure that the script will “exit 0” on success or any other

                            value on error.

                            In order to enable or disable this script just change the execution

                            bits.

                            By default this script does nothing.

                            /bin/sleep30 && /etc/init.d/tftpd-hpa restart
                            exit 0

                            xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

                            In order to enable or disable this script just change the execution

                            bits. (no idea what this means. Do I need to enable this script?)

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                            • A
                              Alistair
                              last edited by

                              Multicast does not work again.

                              1 Reply Last reply Reply Quote 0
                              • A
                                Alistair
                                last edited by

                                Now it is working (multicast to the same 3 new PCs)

                                Trying to understand the sequence of events that leads to it not working and then working.

                                This time I rebooted fogserver, logged in, waited 2 minutes,
                                sudo stop tftpd-hpa
                                sudo start tftpd-hpa

                                From my PC - multicast to 3 PCs which worked

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                                • Jaymes DriverJ
                                  Jaymes Driver Developer
                                  last edited by

                                  I guess you will need to run the script yourself to stop and start the service, it’s not like it is a long command.

                                  WARNING TO USERS: My comments are written completely devoid of emotion, do not mistake my concise to the point manner as a personal insult or attack.

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                                  • A
                                    Alistair
                                    last edited by

                                    I suspect Firefox or LibreOffice may be the culprits.
                                    I know it is not good practise to use other programs on a dedicated server, but it makes it so much easier to to get this fog stuff done and sorted by using Firefox and LibreOffice on fogserver.

                                    OK I am going to work through this systematically.
                                    I am not touching the fogserver desktop. (remember I only logged in and then stopped and started tftpd-hpa.)
                                    I am now multicasting again for a 2nd time succesfully to the 3 clients. To prove that it wasn’t a one off fluke. It can be repeated.

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                                    • Tom ElliottT
                                      Tom Elliott
                                      last edited by

                                      Shouldn’t the proper commands to restart the service be:
                                      [code]sudo service tftpd-hpa restart[/code]

                                      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                                      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                                      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                                      • A
                                        Alistair
                                        last edited by

                                        Have now multicast the Ubuntu-12 image to the same classroom of old HPs - as expected did not work.
                                        Then for the 3rd time I multicast Win 8.1 successfully to the 3 same new HPs.

                                        3 successful multicasts of Win 8.1
                                        1 failed multicast of Ubuntu to old HPs.

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                                        • A
                                          Alistair
                                          last edited by

                                          Tom you wrote:

                                          Shouldn’t the proper commands to restart the service be:
                                          Code:
                                          sudo service tftpd-hpa restart
                                          I just realized that you are probably referring to the script used in rc.local? I thought you were commenting on when I wrote:

                                          This time I rebooted fogserver, logged in, waited 2 minutes,
                                          sudo stop tftpd-hpa
                                          sudo start tftpd-hpa

                                          I have now used the following line in rc.local, including sudo:

                                          /bin/sleep30 && sudo /etc/init.d/tftpd-hpa restart

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                                          • A
                                            Alistair
                                            last edited by

                                            Reboot
                                            Log in window appears
                                            Have not logged in.
                                            Wait 1 minute.
                                            Multicast to 3 PCs
                                            TFTP… waiting
                                            Cancel fog tasks
                                            Log in to fogserver
                                            Wait 1 minute
                                            Multicast to 3 Pcs
                                            TFTP…
                                            Cancel fog tasks
                                            sudo service tftpd-hpa restart
                                            Multicast to 3 PCs
                                            TFTP works
                                            Multicast failed - same white window with blue frame
                                            Cancel fog tasks

                                            Reboot fogserver
                                            Log in
                                            wait 1 minute
                                            sudo service tftpd-hpa restart
                                            Multicast to 3 PCs
                                            Multicast failed !!! (strange, I thought this would work now)
                                            Cancel fog tasks

                                            Reboot fogserver
                                            Log in
                                            wait 1 minute
                                            sudo service tftpd-hpa restart
                                            Multicast to 3 PCs
                                            Multicast failed again !!!
                                            Cancel fog tasks

                                            Reboot fogserver
                                            Log in
                                            wait 1 minute
                                            sudo stop tftpd-hpa
                                            sudo start tftpd-hpa
                                            Multicast to 3 PCs
                                            Multicast Worked (note that this time I stopped tftp first and then started it 10 seconds later)

                                            I am now going to reboot fogserver and repeat the above procedure 2 more times to confirm working with stop and then start.

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