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    Kernel panic - not syncing: VFS

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    • D
      Data31337
      last edited by

      Ubuntu 14.04
      FOG SVN 7853

      I just recently upgraded with a clean install of FOG and am now running into the problem with the Kernel Panic - not syncing: VFS. Was wondering if anyone else has ran into this issue and how’d they fix it? I’ve been scouring the internet looking for solutions and most of them require reinstalling with a Rescue CD which I don’t exactly have. I have tried Updating/Upgrading Ubuntu and Rerunning the ./installfog.sh. Also tried downgrading the kernel.

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

        This is the second or third one I’ve seen today. Not sure what is going on with the build. But the error basically says there is an issue with the init (virtual hard drive) to where its either damaged or not constructed properly.

        Can you run svn up to update your svn and then reinstall the update using the bin/installfog.sh script again.

        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!

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        • george1421G
          george1421 Moderator
          last edited by george1421

          I know I updated my dev box today at 1p and it fixed an issue that was in the build at 6a EDT today.

          Cross link duplicate issue
          https://forums.fogproject.org/topic/7555/upgrade-to-trunk-kernel-panic

          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!

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          • Tom ElliottT
            Tom Elliott
            last edited by

            I’m not sure of what the problem is, but I’m 99% sure it’s not related to kernel, and as this particular user is on current, it’s got to be some setting that’s a little borked at the moment.

            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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            • D
              Data31337
              last edited by

              I just updated it the svn last night, I will update the svn and FOG again today, if that doesn’t work I’ll check out the settings.

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              • D
                Data31337
                last edited by

                I think I forgot to add some details to the issue:
                SVN: Updated to 5585
                FOG: Revision 7881
                Machines to be imaged: Dell Optiplex 745; HP DC5750S Small Form Factor

                george1421G 1 Reply Last reply Reply Quote 0
                • george1421G
                  george1421 Moderator @Data31337
                  last edited by

                  @Data31337 are you using dnsmasq in your environment?

                  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!

                  G 1 Reply Last reply Reply Quote 0
                  • D
                    Data31337
                    last edited by

                    No, not to my knowledge, just DHCP and DNS on a Win 2008 R2 machine.

                    george1421G 1 Reply Last reply Reply Quote 0
                    • george1421G
                      george1421 Moderator @Data31337
                      last edited by

                      @Data31337 OK trying to draw a parallel with another thread with the same reported issue.

                      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!

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                      • D
                        Data31337
                        last edited by

                        I’ve been following the other thread too, I noticed we are both trying to image the same style PC the Optiplex 745. One thing I noticed was that FOG is pushing out a 64 Bit version of BZImage & Init when I know the PC’s Ive been trying to image are 32 bit. I tried modifying the kernel’s in the configuration to push the 32 bit and I recieved a “Image not found” written over several different lines, I can get a exact error message if that would be more helpful.

                        george1421G 1 Reply Last reply Reply Quote 0
                        • george1421G
                          george1421 Moderator @Data31337
                          last edited by george1421

                          @Data31337 FOG should detect the arch and send out the right image x64 vs x86. But you may be on to something. Let me check to see if the 745s are x64 compatible. Fog should send out bzImage_32 for a 32 bit system and init_32.xz for 32 if something gets mixed up and the init doesn’t match the bzImage then this error will be thrown.

                          [edit] The 745 supports EMT64 not sure if that would cause any issues or not, still researching.

                          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!

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                          • S
                            Sebastian Roth Moderator
                            last edited by Sebastian Roth

                            @Data31337 Seems like the 745 some kind of 32bit/64bit system. I found a couple of posts on the internet which state that this machine is actually capable of running a 64 bit OS. As well the manual all CPUs have EM64T.

                            Looking forward to see if the error goes away if you force to boot with bzImage32/init_32.xz - maybe the 64 bit support is just fake…

                            [edit] Interestingly enough I just found a debian kernel package for those EM64T CPUs… Trying to find out what this is about. [/edit]

                            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 Could you please build a kernel with CONFIG_MPSC enabled to see if this is helping here? I had no idea this did exist in the kernel.
                              As well I am wondering if we should add CONFIG_MK8 - although I am not sure if all those options would work in the same kernel binary. Haven’t tried it myself. Just doing some research on the web.

                              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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                              • D
                                Data31337
                                last edited by

                                No problem, I was following the other thread and noticed he got it working using the dnsmasq. Would this be something recommended to try out? As of right now its just a fully updated WebUI/svn/FOG and my experience with dnsmasq isn’t the greatest but I can learn.

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                                • S
                                  Sebastian Roth Moderator
                                  last edited by

                                  @Data31337 Please don’t go for dnsmasq. I’d even suggest the other guy to switch over to ISC-DHCP as dnsmasq still does not properly support UEFI or even BIOS/UEFI together.

                                  I am almost absolutely sure that dnsmasq wouldn’t make it work for you! Please let us know which boot file you are using. undionly.kpxe?

                                  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

                                  D 1 Reply Last reply Reply Quote 0
                                  • D
                                    Data31337 @Sebastian Roth
                                    last edited by Data31337

                                    @Sebastian-Roth

                                    Sorry if this is a dumb question but how can I find out? Is there a log file I can check to see which one is getting pushed out? Configuration wise, I haven’t changed anything.

                                    [edit] I am able to get to the FOG Menu once again, where as last changes I was not able to, but when I select anything it displays the same Kernel panic - not syncing error, along with device descriptor read/64, error -71 [/edit]

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                                    • S
                                      Sebastian Roth Moderator
                                      last edited by Sebastian Roth

                                      @Data31337 Do you use FOG as DHCP server as well or do you have a different DHCP in your network? Maybe you have two DHCP servers which would explain why you sometimes get to the menu but sometimes not. Please run sudo grep filename /etc/dhcp/dhcpd.conf on the FOG server and post a picture here.

                                      I am wondering about the device descriptor read/64, error -71… Can’t remember having seen this ever. Can you please post a picture of that as well?
                                      [edit] A well, that seems to be an (unrelated) USB error… probably save to ignore if you don’t use USB NIC [/edit]

                                      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

                                      D 1 Reply Last reply Reply Quote 0
                                      • D
                                        Data31337 @Sebastian Roth
                                        last edited by Data31337

                                        @Sebastian-Roth

                                        We have DHCP setup on a Server 2008 R2 VM along with ADDS if that helps. And then you were also correct with the USB Error, I had a USB Stick with the FOG client on it that was still plugged in. I think it was getting the error because it wasn’t recognizing it.

                                        [edit] DHCP is pushing out the pxelinux.0 [/edit]

                                        george1421G 1 Reply Last reply Reply Quote 0
                                        • S
                                          Sebastian Roth Moderator
                                          last edited by

                                          @Data31337 said:

                                          DHCP is pushing out the pxelinux.0

                                          Well then, change it to undionly.kpxe and I am almost certainly sure that things will work then!

                                          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

                                          D 1 Reply Last reply Reply Quote 1
                                          • george1421G
                                            george1421 Moderator @Data31337
                                            last edited by george1421

                                            @Data31337 said in Kernel panic - not syncing: VFS:

                                            [edit] DHCP is pushing out the pxelinux.0 [/edit]

                                            Great find. It looks like legacy iPXE stuff [ edit legacy syslinux] bit us twice in a short period of time. Just so we know where, where did you get the instructions to use pxelinux.0 from in dhcp?

                                            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!

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