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    Error importing large vhd file

    Scheduled Pinned Locked Moved Solved Xen Orchestra
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    • G Offline
      goreandor @planedrop
      last edited by

      planedrop Yes, I'm trying to import using Xen Orchestra. I tried importing from the command line after copying the vhd manually to a storage repository, but I can't get over the invalid uuid error 😞 I tried running uuidgen from my Linux machine and also on a XCP-ng server just in case there was something different. From what I've seen, it should be just a "uuidgen -r" to get a compatible uuid.

      Maybe I'm missing something really stupid and basic. I will try to go through the Lawrence Systems videos and find that one maybe there is something that helps. Today I'm expecting have work outside for most of the day I think, so there might be a delay in my replies.

      Thanks

      planedropP 1 Reply Last reply Reply Quote 1
      • G Offline
        goreandor @olivierlambert
        last edited by

        olivierlambert I was not running an old build, but I updated earlier this week or late last I think just in case. Just running an update again. My updater script says "Updating Xen Orchestra from 'c2e0c97d9' to '53e0f17c5'".

        G 1 Reply Last reply Reply Quote 0
        • planedropP Offline
          planedrop Top contributor @goreandor
          last edited by

          goreandor Yeah check out the lawrence systems video, it helped me a ton when troubleshooting. The process for Hyper-V to XCP-ng is very similar for physical to XCP-ng.

          1 Reply Last reply Reply Quote 0
          • G Offline
            goreandor @goreandor
            last edited by

            goreandor said in Error importing large vhd file:

            olivierlambert I was not running an old build, but I updated earlier this week or late last I think just in case. Just running an update again. My updater script says "Updating Xen Orchestra from 'c2e0c97d9' to '53e0f17c5'".

            I just tried to import the VHD again from a VHD that is already on an SR on version 53e0f. Log below:

            [07:19 xcp-ng-r550 ~]# cd /run/sr-mount/558efc11-bec3-7618-651a-bca4c90ceaba
            [07:19 xcp-ng-r550 558efc11-bec3-7618-651a-bca4c90ceaba]# ls
            4f8e366c-ab9c-4043-98cd-aded4389dffa.vhd  filelog.txt
            [07:20 xcp-ng-r550 558efc11-bec3-7618-651a-bca4c90ceaba]# uuidgen -r
            b2394f60-1235-41ed-85ab-63809d57e484
            [07:20 xcp-ng-r550 558efc11-bec3-7618-651a-bca4c90ceaba]# mv 4f8e366c-ab9c-4043-98cd-aded4389dffa.vhd b2394f60-1235-41ed-85ab-63809d57e484.vhd
            [07:20 xcp-ng-r550 558efc11-bec3-7618-651a-bca4c90ceaba]# xe vdi-import filename=/run/sr-mount/558efc11-bec3-7618-651a-bca4c90ceaba/b2394f60-1235-41ed-85ab-63809d57e484.vhd uuid=b2394f60-1235-41ed-85ab-63809d57e484
            The uuid you supplied was invalid.
            type: VDI
            uuid: b2394f60-1235-41ed-85ab-63809d57e484
            [07:21 xcp-ng-r550 558efc11-bec3-7618-651a-bca4c90ceaba]#
            

            I still have the uuid issue 😞

            splastunovS 1 Reply Last reply Reply Quote 0
            • olivierlambertO Online
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by olivierlambert

              You don't need to import a VHD that is on the SR already 🙂 Just to scan the SR as soon you have the UUID.vhd 🙂 (and you will see it in XO)

              G 1 Reply Last reply Reply Quote 0
              • splastunovS Offline
                splastunov @goreandor
                last edited by splastunov

                goreandor if it is real vhd compatible with xen, than you should be able to read it metadata with this command

                vhd-util read -p -n [vhd-name].vhd
                

                You will see what is the UUID of this vhd.
                Than you should rename it to this UUID and rescan SR.
                In XOA GUI You will se VHD without name.
                Put the name to it and attach to VM.

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                • olivierlambertO Online
                  olivierlambert Vates 🪐 Co-Founder CEO
                  last edited by olivierlambert

                  Note: you must use dynamic VHD format.

                  See https://docs.xcp-ng.org/installation/migrate-to-xcp-ng/#from-hyper-v

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                  • G Offline
                    goreandor @olivierlambert
                    last edited by

                    olivierlambert I did try that before trying the import, but when I do a rescan, I get the error below:

                    Rescan all disks
                    
                    SR_BACKEND_FAILURE_40(, The SR scan failed [opterr=uuid=b2394f60-1235-41ed-85ab-63809d57e484], )
                    

                    I installed Virtualbox and used the command below to convert from a vhdx to a vhd file:

                    vboxmanage clonemedium source.vhdx destination.vhd --format VHD
                    
                    

                    This worked for the VHD that was smaller in size. So did the same thing with the larger VHD. I tried originally from Hyper-V, but I had some issues if I remember correctly or maybe I did not find an option to change from vhdx to vhd. I am trying to convert again, but specifying "--variant standard" just in case. As I understand, this explicitly specifies image type as dynamic.

                    splastunov

                    I just tried that command, but still stuck unfortunately.

                    [07:49 xcp-ng-r550 558efc11-bec3-7618-651a-bca4c90ceaba]# vhd-util read -p -n b2394f60-1235-41ed-85ab-63809d57e484.vhd
                    Failed to get bat for b2394f60-1235-41ed-85ab-63809d57e484.vhd: -22
                    

                    Googled the error, but did all results I got were Windows-related.

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                    • olivierlambertO Online
                      olivierlambert Vates 🪐 Co-Founder CEO
                      last edited by

                      This means your VHD is not valid.

                      G 1 Reply Last reply Reply Quote 0
                      • M Offline
                        Momi_V
                        last edited by

                        You could check what

                        vhd-util check -n your.vhd
                        

                        returns, and if it fails (and you have another copy somewhere, just in case) run

                        vhd-util repair -n your.vhd
                        

                        I have no experience with Hyper-V, but I can't use qemu-img converted VHDs without running vhd-util-repair on them.

                        1 Reply Last reply Reply Quote 0
                        • G Offline
                          goreandor @olivierlambert
                          last edited by

                          olivierlambert

                          Just had time to check the new conversion, and it worked using the latest Virtualbox command I pasted, copied it directly to the repository, and it was recognised and booted ok after attaching to a VM.

                          Many thanks for the help and apologies for the hassle! 🙂

                          1 Reply Last reply Reply Quote 1
                          • olivierlambertO Online
                            olivierlambert Vates 🪐 Co-Founder CEO
                            last edited by

                            No worries, happy to help!

                            1 Reply Last reply Reply Quote 0
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