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    Elastic Compute Service:Calibrate the operating system

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    Elastic Compute Service:Calibrate the operating system

    Last Updated:May 15, 2026

    Correct the Operating System value in the ECS console after an OS upgrade or conversion.

    Important

    • This feature is in invitational preview. To use it, submit a ticket.

    • You can only calibrate to OS forms such as CentOS_64, CentOS_32, and CentOS_arm64, not to specific minor versions like CentOS 7.9 or Ubuntu 22.04. This action is irreversible. Proceed with caution.

    Procedure

    1. Go to ECS console - Instances.

    2. In the upper-left corner of the page, select a region and resource group.地域

    3. Find the target instance. In the Actions column, choose icon1 > Instance Attributes > Calibrate Operating System.

      image

    4. In the Calibrate Operating System dialog box, select an Operating System Name and click Confirm.

      Note

      If your target operating system is not in the drop-down list, select one of the following:

      • Linux: OtherLinux_64, OtherLinux_32, or OtherLinux_arm64

      • Windows: OtherWindows_x86_64, OtherWindows_x86_32, or OtherWindows_arm64

      image

    5. Verify the result in the Operating System field on the Instance Details tab.

      image