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Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) Kernel Offset: disabled

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  • B
    b.nelson @george1421
    last edited by May 22, 2017, 9:40 PM

    @george1421 With a router and the server is with a static IP

    G 1 Reply Last reply May 22, 2017, 9:42 PM Reply Quote 1
    • G
      george1421 Moderator @b.nelson
      last edited by george1421 May 22, 2017, 3:43 PM May 22, 2017, 9:42 PM

      @b.nelson OK good, how is your pxe booting clients able to pxe boot? Did you set the dhcp options in the router or did you enable a service like dnsmasq? Its kind of, sort of working. What’s not clear right now is how??

      Did you have fog set up in the past?

      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!

      B 1 Reply Last reply May 22, 2017, 9:52 PM Reply Quote 0
      • B
        b.nelson @george1421
        last edited by May 22, 2017, 9:52 PM

        @george1421 There is a VLAN dedicated to the servers which is handled by static IP.

        No, we did not have fog in the past.

        T G 2 Replies Last reply May 22, 2017, 9:54 PM Reply Quote 0
        • T
          Tom Elliott @b.nelson
          last edited by May 22, 2017, 9:54 PM

          @b.nelson Can you get us this information?

          sha512sum /var/www/fog/service/ipxe/bzImage{,32} (I’m just trying to make sure you don’t have a corrupt file along the way.)

          Do you see the iPXE Menu on the client machines?

          What is providing network addresses to the client machines? (Is this your vmware vlan switch handing dhcp to the client machines?)

          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

          B 1 Reply Last reply May 22, 2017, 9:57 PM Reply Quote 0
          • B
            b.nelson @Tom Elliott
            last edited by Tom Elliott May 22, 2017, 3:59 PM May 22, 2017, 9:57 PM

            @Tom-Elliott

            root@FOG:/home/user# sha512sum /var/www/fog/service/ipxe/bzImage{,32}
            c75abc75be06a219920c5c29809436ba66f9d1b5f56af757ee8a28393620e83d0b44f3f8bb582b4e8ad01c4c3e247fde99916d06ff3374631ac3453e042dc3f8  /var/www/fog/service/ipxe/bzImage
            0e465ea8c7607377d5f023c5be9838392ba3ef3ab0c793125cde4d5d1cf40c60dc17518be7d6c71ef65e8b261a3d0fce3fa380f6e07bbcaa0fbf59bd72d59b4f  /var/www/fog/service/ipxe/bzImage32
            
            T 1 Reply Last reply May 22, 2017, 9:59 PM Reply Quote 0
            • T
              Tom Elliott @b.nelson
              last edited by May 22, 2017, 9:59 PM

              When you ran the FOG Installer, did you choose to have it install 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! 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

              B 1 Reply Last reply May 22, 2017, 10:00 PM Reply Quote 0
              • B
                b.nelson @Tom Elliott
                last edited by May 22, 2017, 10:00 PM

                @Tom-Elliott no

                T 1 Reply Last reply May 22, 2017, 10:01 PM Reply Quote 0
                • T
                  Tom Elliott @b.nelson
                  last edited by May 22, 2017, 10:01 PM

                  @b.nelson Is there a windows machine somewhere on the vlan handing out DHCP addresses then?

                  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

                  B 1 Reply Last reply May 22, 2017, 10:07 PM Reply Quote 0
                  • B
                    b.nelson @Tom Elliott
                    last edited by May 22, 2017, 10:07 PM

                    @Tom-Elliott In the VLAN there is no DHCP the server is with static IP.

                    The windows that we want to clone are in another VLAN with DHCP.

                    T G 2 Replies Last reply May 22, 2017, 10:08 PM Reply Quote 0
                    • T
                      Tom Elliott @b.nelson
                      last edited by May 22, 2017, 10:08 PM

                      @b.nelson and the “remote” systems are on the “other” vlan when you’re attempting to capture?

                      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

                      B 1 Reply Last reply May 22, 2017, 10:14 PM Reply Quote 0
                      • T
                        Tom Elliott
                        last edited by May 22, 2017, 10:09 PM

                        Essentially, the thing Giving out DHCP is also giving the bootfile and where to boot from.

                        This “other” vlan is where you need to look at the bootfile it’s handing out.

                        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

                        1 Reply Last reply Reply Quote 0
                        • G
                          george1421 Moderator @b.nelson
                          last edited by May 22, 2017, 10:09 PM

                          @b.nelson said in Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) Kernel Offset: disabled:

                          @george1421 There is a VLAN dedicated to the servers which is handled by static IP.

                          No, we did not have fog in the past.

                          So then for your pxe booting clients are they on the same vlan as your fog server?

                          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!

                          B 1 Reply Last reply May 22, 2017, 10:10 PM Reply Quote 0
                          • B
                            b.nelson @george1421
                            last edited by May 22, 2017, 10:10 PM

                            @george1421 si

                            G 1 Reply Last reply May 22, 2017, 10:12 PM Reply Quote 0
                            • G
                              george1421 Moderator @b.nelson
                              last edited by May 22, 2017, 10:10 PM

                              @b.nelson said in Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) Kernel Offset: disabled:

                              The windows that we want to clone are in another VLAN with DHCP.

                              On this vlan you are using a router for 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!

                              1 Reply Last reply Reply Quote 0
                              • G
                                george1421 Moderator @b.nelson
                                last edited by May 22, 2017, 10:12 PM

                                @b.nelson said in Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) Kernel Offset: disabled:

                                @george1421 si

                                Just to be sure fog server is on the same subnet as your pxe booting clients? If that is the case we can use the FOG server to tell us what is going on.

                                What you have is very strange and should not be working this way.

                                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 May 22, 2017, 10:14 PM Reply Quote 0
                                • B
                                  b.nelson @Tom Elliott
                                  last edited by May 22, 2017, 10:14 PM

                                  @Tom-Elliott yes

                                  1 Reply Last reply Reply Quote 0
                                  • G
                                    george1421 Moderator @george1421
                                    last edited by May 22, 2017, 10:14 PM

                                    @george1421 I make a tutorial a while ago that might help here. https://forums.fogproject.org/topic/9673/when-dhcp-pxe-booting-process-goes-bad-and-you-have-no-clue

                                    We will use tcpdump to capture a client pxe booting to the FOG menu. Once at FOG menu stop tcpdump and post the pcap file to the forum. This will tell us all the questions we will ask.

                                    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!

                                    B 1 Reply Last reply May 26, 2017, 5:05 PM Reply Quote 0
                                    • C
                                      callcenter
                                      last edited by May 26, 2017, 1:36 PM

                                      Dear All,
                                      New user/taken over 1.3.8 project from coworker.
                                      I am having the same issue after upgrading to 1.4.0 today. Not sure where to change pxelinux.0 reference. Using windows as DHCP with options set. Any help would be great!!

                                      G 1 Reply Last reply May 26, 2017, 2:00 PM Reply Quote 0
                                      • G
                                        george1421 Moderator @callcenter
                                        last edited by May 26, 2017, 2:00 PM

                                        @callcenter If I remember correctly the target computer was getting pxelinux.0 from some unknown place.

                                        If the target computer (that you are pxe booting) and fog server is on the same subnet then we can use the fog server to help diagnose what is really going on. In my last post I provided a link to a tutorial on how to setup a packet capture of the pxe booting process. That pcap file will tell us what is going on.

                                        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!

                                        1 Reply Last reply Reply Quote 0
                                        • C
                                          callcenter
                                          last edited by May 26, 2017, 4:07 PM

                                          It was the windows DHCP scopes having the old 67 option in them instead of the new undionly.kpxe program. updated all my scopes and tested-ok not using the main server options since my wifi and telco devices do not need PXE. I saw others make mention of doing that instead of every scope having the references. In my environment it just doesn’t make sense.

                                          thanks for the help.

                                          G C 2 Replies Last reply May 26, 2017, 4:19 PM Reply Quote 0
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