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Hyper-V 2016 Gen2 VM (UEFI) fails to complete network boot

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  • S
    Sebastian Roth Moderator
    last edited by May 25, 2017, 7:47 AM

    @Tom-Elliott Yes, from quickly looking over the code changes I would guess that b91cc98 is probably the main cause. It seems like a bit change. Let’s see if you get a positive test from @sudburr…

    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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    • S
      sudburr
      last edited by sudburr May 25, 2017, 8:47 AM May 25, 2017, 2:46 PM

      Strangely:

      git checkout hyperv-ipxetest1
      error: Your local changes to the following files would be overwritten by checkout:
              packages/tftp/ipxe.efi
      Please, commit your changes or stash them before you can switch branches.
      Aborting
      

      So I ran:

      git checkout -- .
      

      Which returned nothing but then I:

      git checkout hyperv-ipxetest1
      Branch hyperv-ipxetest1 set up to track remote branch hyperv-ipxetest1 from origin.
      Switched to a new branch 'hyperv-ipxetest1'
      

      and

      git pull
      Already up-to-date.
      

      So I proceeded with installation and it reported:

      Version: 9220986 Installer/Updater
      

      iPXE.efi is now 356f … and it fails into a restart loop the same way.

      [ Standing in between extinction in the cold and explosive radiating growth ]

      T 1 Reply Last reply May 25, 2017, 3:37 PM Reply Quote 0
      • T
        Tom Elliott @sudburr
        last edited by Tom Elliott May 25, 2017, 9:38 AM May 25, 2017, 3:37 PM

        @sudburr Mind retrying installer? I’m installing before the “big” change occurred.

        Also, to fix the issue you saw with the original checkout, please try:

        git reset --hard
        git checkout hyperv-ipxetest1
        git pull
        

        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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        • S
          sudburr
          last edited by May 25, 2017, 3:54 PM

          ipxe.efi 276d6 also fails the same way.

          [ Standing in between extinction in the cold and explosive radiating growth ]

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          • T
            Tom Elliott
            last edited by May 25, 2017, 5:24 PM

            While working this out through chat, I’ve pushed patched, and working ipxe binaries that address this particular problem with booting. I should note, however, this is still not a “FOG” specific problem, rather something went wonky in ipxe binaries. I’ve made a posting on their forums and hope to hear back soon.

            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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            • S
              sudburr
              last edited by May 25, 2017, 5:47 PM

              Many thanks for the live help Tom!

              [ Standing in between extinction in the cold and explosive radiating growth ]

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              • S
                sudburr
                last edited by Jun 6, 2017, 3:25 PM

                Any love from the folks at ipxe.org yet?

                [ Standing in between extinction in the cold and explosive radiating growth ]

                T 1 Reply Last reply Jun 6, 2017, 3:54 PM Reply Quote 0
                • T
                  Tom Elliott @sudburr
                  last edited by Jun 6, 2017, 3:54 PM

                  @sudburr Nope, but 1.4.2 should have the patched binaries anyway.

                  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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                  • C
                    carl2187
                    last edited by Jun 23, 2017, 7:45 PM

                    Based on the timeframe that this bug was submitted (may 2017) i’m guessing this is only a problem on Hyper-v builds 1703 (as available in, win 10 ent x64-1703, hyper-v server 2016-build 1703, win server 2016 w/ hyper-v build 1703). Most likely the issues are being caused by the ARP protocol problem found only in Gen 2 vms in the PXE stack of hyper-v build 1703. See this Microsoft forum post for more details on how ARP was broken in this build. Still no resolution to my knowledge, but this post is most likely what will drive the fix from M$'s perspective.

                    https://social.technet.microsoft.com/Forums/en-US/436c67cb-1c7d-4c5f-8f62-3518a0cfaeb4/hyperv-build-1703-generation-2-pxe-has-faulty-arp-implementation?forum=winserverhyperv

                    1 Reply Last reply Reply Quote 1
                    • T
                      Tom Elliott
                      last edited by Jul 30, 2017, 11:29 PM

                      iPXE Developers finally got to look and hopefully have fixed this.

                      I’ve updated the ipxe binaries directly after pushing 1.5.0-RC-6. Both working and dev-branch have the updates though.

                      Please re-test and let us know if things are “still” working or if it breaks anything again.

                      Thank you.

                      I have been keeping up to date, but leaving my “reversion” code that seemed to fix the problem for users so hyperv gen 2 could still work. Hopefully it now works using iPXE’s own native source code.

                      See here:
                      https://git.ipxe.org/ipxe.git/commit/936657832f2262ad04bdf16b9229ce0b1d1c174f

                      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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                      • S
                        sudburr
                        last edited by Aug 1, 2017, 6:04 PM

                        Good to know. I won’t be able to test right away though. I’m busy doing summer stuff right now. I’ll get back to you as soon as possible.

                        [ Standing in between extinction in the cold and explosive radiating growth ]

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