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Upgrade is supported only to existing valid Veeam ONE database.

  • December 18, 2025
  • 5 comments
  • 23 views
waqasali
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Dear Community,

 

What could be the issue while upgrading VONE to the latest version? 

 

 

Waqas Ali

    5 comments

    Chris.Childerhose
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    • Chris.Childerhose
    • Veeam Legend, Veeam Vanguard
    • December 18, 2025

    No idea since there is not much detail to the message.  Did you check the installation logs to see what they might say?  Would highly suggest support case for this one.

    Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 8* | Veeam Legend 5* | VUG Canada Leader | vExpert 6* | Toronto VMUG Leader | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
    JMeixner
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    • JMeixner
    • On the path to Greatness
    • December 18, 2025

    I assume your existing database version is too old for the new VONE version and is not supported. From which VONE version are you upgrading?
    Or you have deleted the old database before the upgrade.

    Jochen (Joe) Meixner | Veeam Vanguard 2024 | Veeam Legend 2021 - 2024 | Veeam Certified Architect (VMCA) | Veeam Certified Engineer (VMCE) | LinkedIn: https://www.linkedin.com/in/jochen-meixner | X: @JoMeix | BlueSky: @jmeixner.bsky.social
      waqasali
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      • waqasali
      • Author
      • On the path to Greatness
      • December 18, 2025

      I’m not sure this setup generate logs file. 

      Waqas Ali
        Chris.Childerhose
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        • Chris.Childerhose
        • Veeam Legend, Veeam Vanguard
        • December 18, 2025

        I’m not sure this setup generate logs file. 

        Yes Veeam installs do for all products - C:\ProgramData\Veeam folder.

        Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 8* | Veeam Legend 5* | VUG Canada Leader | vExpert 6* | Toronto VMUG Leader | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
        Andanet
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        • Andanet
        • Veeam Legend
        • December 18, 2025

        Mmmmmm Vaqas, if I remember right I received same error time ago. And I’m pretty sure it was a database Compatibility Level issue. 

        please check this KB https://www.veeam.com/kb4790

        All setup logs are located in C:\ProgramData\Veeam\Setup and in a different subfolder. You can check there

        Antonio D'Andrea | VMCE 2021 | VMCA 2022 | VMTSP2024 | Veeam Legend | VUG Italy Leader | Object First Ace | VCP6-DCV | I want it written on my tombstone "Please start a restore to the last valid backup"
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