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  • ubuntu 的runlevel设定

    修改ubuntu的启动级别 runlevel

     

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    37down voteaccepted

    Ubuntu 16.04 uses systemd instead of init and hence the concept of runlevels is replaced by the term targets. So there is indeed a mapping between init-based runlevels and systemd-based targets:

       Mapping between runlevels and systemd targets
       ┌─────────┬───────────────────┐
       │Runlevel │ Target            │
       ├─────────┼───────────────────┤
       │0        │ poweroff.target   │
       ├─────────┼───────────────────┤
       │1        │ rescue.target     │
       ├─────────┼───────────────────┤
       │2, 3, 4  │ multi-user.target │
       ├─────────┼───────────────────┤
       │5        │ graphical.target  │
       ├─────────┼───────────────────┤
       │6        │ reboot.target     │
       └─────────┴───────────────────┘
    

    Now, to just change the "runlevels" in 16.04, you can use for eg:

    sudo systemctl isolate multi-user.target
    

    To make this the default "runlevel", you can use:

    sudo systemctl enable multi-user.target
    sudo systemctl set-default multi-user.target
    

    From man systemctl

       isolate NAME
           Start the unit specified on the command line and its dependencies and stop all others. If
           a unit name with no extension is given, an extension of ".target" will be assumed.
    
           This is similar to changing the runlevel in a traditional init system. The isolate command
           will immediately stop processes that are not enabled in the new unit, possibly including
           the graphical environment or terminal you are currently using
    

    Also have a look at man systemd.special to know more about the targets in systemd.

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  • 原文地址:https://www.cnblogs.com/oxspirt/p/9390332.html
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