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    boot subsystem


    boot [ backup ] subsystem subsysName relFileName

    no boot [ backup ] subsystem [ subsysName ]

    Release Information

    Command introduced before JunosE Release 7.1.0.


    Configures the selected subsystem to use the specified release the next time the subsystem is booted. The no version disables the subsystem. The backup option enables you to specify a backup release for the module in the specified slot in case the module reboots more times than allowed within the period specified by the boot revert-tolerance command.


    • backup—Configures a backup setting
    • subsysName—Name of the subsystem to be configured
    • relFileName—Name of system software file to use


    Global Configuration

    Published: 2014-08-14