# Configure Cgroup in simulation

Source: [https://docs.qualcomm.com/doc/80-41102-1/topic/configure-cgroup-in-simulation.html](https://docs.qualcomm.com/doc/80-41102-1/topic/configure-cgroup-in-simulation.html)

By default, the simulation environment supports Cgroup v2. For older Ubuntu versions that
            require Cgroup v1, the Cgroup v2 macro must be disabled. This can be done using either
            of the following methods:

    # In Dev Container
    cat >> simulation/.simulation.build << EOF
    export ENABLE_CGROUP_V2=n
    EOFCopy to clipboard

    # In Dev PC Host
    make simulac export ENABLE_CGROUP_V2=nCopy to clipboard

**Parent Topic:** [Use TelAF simulation](https://docs.qualcomm.com/doc/80-41102-1/topic/use-telaf-simulation.html)

Last Published: Aug 06, 2026

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