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

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    • Tom ElliottT
      Tom Elliott @sudburr
      last edited by

      @sudburr Still not a bug FOG can fix.

      If you can get the version of iPXE at which it worked, we could file a bug report to try to help figure out where it broke from then to now.

      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)

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      • Tom ElliottT
        Tom Elliott
        last edited by

        @sudburr said in Hyper-V 2016 Gen2 VM (UEFI) fails to complete network boot:

        The version is the stuff in the parenthesis: iPXE 1.0.0+ (a19ac)

        The shot you provided the version is a19ac

        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)

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        george1421G 1 Reply Last reply Reply Quote 0
        • george1421G
          george1421 Moderator @Tom Elliott
          last edited by

          @Tom-Elliott What about using the magic ipxe7156.efi kernel that works for the surface pros? Wasn’t that one frozen in time?

          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!

          Tom ElliottT 1 Reply Last reply Reply Quote 0
          • Tom ElliottT
            Tom Elliott @george1421
            last edited by

            @george1421 It is indeed. But i doubt it will work. There was some effort in current ipxe to work with hyper-v I thought though.

            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)

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            • sudburrS
              sudburr
              last edited by

              Where can I find a repository of the ipxe.efi that have been used in FOG?

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

              Tom ElliottT 1 Reply Last reply Reply Quote 0
              • Tom ElliottT
                Tom Elliott @sudburr
                last edited by

                @sudburr What do you mean?

                I build at seemingly random intervals. So if you know RC-4 of 1.4.0 was the last known good, just install RC-4 from git:

                git checkout tags/1.4.0-RC-4
                cd bin
                ./installfog.sh -y
                

                Figure out what version is in the string after confirming it works.

                Then re-install the dev-branch (or whatever version you’re installing) with:

                git checkout dev-branch
                git pull
                cd bin
                ./installfog.sh -y
                

                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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                • sudburrS
                  sudburr
                  last edited by sudburr

                  That’ll do the job. I was hoping there would be a way to just download only the ipxe.efi files without the need to re-install the entire beasty. I’m sure there’s a way, but I don’t use GIT professionally.

                  RC-4 with fd6d1 works
                  RC-5 with 84d4 works
                  RC-6 to RC-9.2 with 2d79 works
                  … and there we go, the problem starts with RC-9.3 and ipxe.efi 17887 .

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

                  1 Reply Last reply Reply Quote 0
                  • sudburrS
                    sudburr
                    last edited by

                    Dropping ipxe.efi 2d79 onto a 1.4.0 install works happily.

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

                    Tom ElliottT 1 Reply Last reply Reply Quote 0
                    • Tom ElliottT
                      Tom Elliott @sudburr
                      last edited by

                      @sudburr I’ve found what I think is the problem. Not sure why this would be a problem but i need confirmation so I can give the background to report a proper bug report.

                      I’ve built a set of ipxe binaries that I hope will work. Please try:

                      git fetch --all
                      git checkout hyperv-ipxetest1
                      git pull
                      cd bin
                      ./installfog.sh -y
                      

                      Does this work? Essentially it’s the most current pull with the minor reversion from:
                      https://github.com/ipxe/ipxe/commit/a0f6e75532c68f49b3e1c73ca88151d9663f5269

                      All it does is revert this as I’m fairly sure the message is not the part breaking it:

                      -		return -EBUSY;
                      

                      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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                      • Tom ElliottT
                        Tom Elliott
                        last edited by Tom Elliott

                        Of note: this shows all the changes. Notice the three elements dealing with hyper v?

                        I haven’t tried the second in the change set, as I’m really hoping not to have to mess with it. This, anyway, is not a means to say I believe it is or isn’t the problem, but just trying to figure out more specifically where the error is. In particular:

                        @mcb30	mcb30	[hyperv] Do not fail if guest OS ID MSR is already set  …			a0f6e75
                        @mcb30	mcb30	[hyperv] Remove redundant return status code from mapping functions  …			276d618
                        @mcb30	mcb30	[hyperv] Cope with Windows Server 2016 enlightenments  …			b91cc98
                        

                        These above items appear to be the only things related to hyper v.

                        I’m thinking the problem occurs, mainly, from the first 2 issues. I’m almost certain it’s got to be 276d618 as the call in a0f6e75 appears to be looking for an int to test against. If the ints are removed, would it still fail in the same fashion? (I don’t really know, just going on what I’m seeing).

                        https://github.com/ipxe/ipxe/compare/2d79b20...master

                        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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                        • Tom ElliottT
                          Tom Elliott
                          last edited by

                          So take 2, I’ve applied what I “suspect” is the problem. Apparently there were other changes and the notable portion was how it’s handling the vmprob_bus call. This caused a problem when I originally posted (I wasn’t noticing the error messages sorry.)

                          In the past, vmbus_probe only called hv_unmap_synic ( hv ) if the check failed.
                          If the hv_map_hypercall or hv_map_synic failed it would call hv_unmap_hypercall ( hv ) and hv_free_message ( hv ) (respectively).

                          In the new code, if err_vmbus_probe fails it calls all three. The reason for the change, as I can gather it, is the hv_map_hypercall and hv_map_synic never returned a failed message, while the vmbus_probe would potentially fail.

                          My changes are just to comment the hv_unmap_hypercall and hv_free_message as they wouldn’t have been called in the past. These are still a guess.

                          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
                            Sebastian Roth Moderator
                            last edited by

                            @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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                            • sudburrS
                              sudburr
                              last edited by sudburr

                              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 ]

                              Tom ElliottT 1 Reply Last reply Reply Quote 0
                              • Tom ElliottT
                                Tom Elliott @sudburr
                                last edited by Tom Elliott

                                @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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                                • sudburrS
                                  sudburr
                                  last edited by

                                  ipxe.efi 276d6 also fails the same way.

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

                                  1 Reply Last reply Reply Quote 0
                                  • Tom ElliottT
                                    Tom Elliott
                                    last edited by

                                    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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                                    • sudburrS
                                      sudburr
                                      last edited by

                                      Many thanks for the live help Tom!

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

                                      1 Reply Last reply Reply Quote 0
                                      • sudburrS
                                        sudburr
                                        last edited by

                                        Any love from the folks at ipxe.org yet?

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

                                        Tom ElliottT 1 Reply Last reply Reply Quote 0
                                        • Tom ElliottT
                                          Tom Elliott @sudburr
                                          last edited by

                                          @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

                                            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

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