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    Full backup restore error: Stream_vdi.Invalid_checksum

    Scheduled Pinned Locked Moved Xen Orchestra
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    • R Offline
      RS @Danp
      last edited by

      @Danp
      I have XO from source, version 5.97.0

      I try maually import xva with same error:
      The VM could not be imported.
      msg: INTERNAL_ERROR: [ Stream_vdi.Invalid_checksum("Block Ref:73/00000711 checksum failed: original = 004F1F9D976463DF; recomputed = 28C8B00D9CB64DCE") ]

      splastunovS olivierlambertO 2 Replies Last reply Reply Quote 0
      • splastunovS Offline
        splastunov @RS
        last edited by

        @RS Few years ago I faced the same errors on all xva backups and after that switch to vdi backups.
        I did not find the root of problem, but I know how to "repair" broken backup.

        Check xva backup with command vhd-util check -n name_of_backup.xva.
        If you got something like Checksum : 0x0|0xffffffff (Bad!), the solution is:

        1. Create VM or get server with modern Ubuntu. You will need x3 space of your backup size.
        2. Copy broken backup
        3. Install xva-img https://github.com/eriklax/xva-img
        apt-get install libssl-dev g++ cmake
        add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update && apt-get install -y gcc-7
        
        #To compile execute following commands in xva-img folder
        
        cmake ./
        make install
        
        1. Unpack backup
        mkdir my-virtual-machine
        tar -xf name_of_backup.xva.xva -C my-virtual-machine
        chmod -R 755 my-virtual-machine
        
        1. Create RAW disk. Replace Ref\:1 with your digits
        xva-img -p disk-export my-virtual-machine/Ref\:1/ disk.raw
        
        1. Install qemu-utils from standard repos apt install qemu-utils
        2. Convert RAW to VHD qemu-img convert -f raw -O vpc disk.raw resotred.vhd
        3. Copy VHD to xcp-ng SR cp resotred.vhd /run/sr-mount/{sr-uuid}/
        4. Get UUID of your restored VHD. This command should be executed on xcp-ng server. vhd-util read -p -n resotred.vhd
        5. Rename vhd
        6. Rescan SR, rename VHD with empty name
        R 1 Reply Last reply Reply Quote 0
        • R Offline
          RS @splastunov
          last edited by

          @splastunov said in Full backup restore error: Stream_vdi.Invalid_checksum:

          vhd-util check -n

          I try all backups, and all backups looks corrupted. I dont have problem re-create all backups again, but now is main problem I cannot use XO for backup because every next backup is bad. About some month ago, all works.

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

            @RS sorry, I have no idea how to fix it

            1 Reply Last reply Reply Quote 0
            • R Offline
              RS @Danp
              last edited by

              @Danp I try diferent SMB repository, but with same result.

              DanpD 1 Reply Last reply Reply Quote 0
              • DanpD Offline
                Danp Pro Support Team @RS
                last edited by

                @RS Are you able to replicate this problem using XOA?

                R 1 Reply Last reply Reply Quote 0
                • R Offline
                  RS @Danp
                  last edited by

                  @Danp said in Full backup restore error: Stream_vdi.Invalid_checksum:

                  Are you able to replicate this problem using XOA

                  I dont use XOA, I only try re-create new installation on new VM but with same result too.

                  DanpD 1 Reply Last reply Reply Quote 0
                  • DanpD Offline
                    Danp Pro Support Team @RS
                    last edited by

                    @RS Deploy an instance of XOA and start a trial. Then use this to test if you can replicate this issue. This will help determine if it is an issue with your build environment or a larger issue affecting XOA.

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                    • R Offline
                      RS @Danp
                      last edited by

                      @Danp I try XOA in trial mode and backup/restore works, so problem is probably in our build

                      1 Reply Last reply Reply Quote 0
                      • olivierlambertO Offline
                        olivierlambert Vates 🪐 Co-Founder CEO @RS
                        last edited by olivierlambert

                        @RS There's no source "versions", just latest commit must be used. Please see https://xen-orchestra.com/docs/community.html#report-a-bug

                        If you want to test, deploy an XOA and see if it works better, that might help to rule out a build issue or the fact you are not on the last commit.

                        R 1 Reply Last reply Reply Quote 0
                        • R Offline
                          RS @olivierlambert
                          last edited by

                          @olivierlambert I test XOA - works. I try build from source - Ubuntu 22.04.4 - not work, Ubuntu 24.04 - not work, Rocky linux v9.4 - works.
                          So problem is only on Ubuntu, I can re-install Xo server to new server and stay on Rocky Linux v9

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

                            Yes, you can always export/import the config on a working install. So it's a problem on your build, it's really hard to tell where's the culprit (because you built it, you see why we distribute it via XOA for production/professional usage 😄 )

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