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  • Fabiano Fidencio's avatar
    shutdown: Adding binary to shutdown the system · b1b2a107
    Fabiano Fidencio authored
    This functions are working as follows:
       - Send a SIGTERM to all processes that may be finished
       - Send a SIGKILL to all processes that still live and may be finished
       - Try to unmount all mount points
       - Try to remount read-only all mount points that can't be umounted
       - Umount all swap devices
       - Umount and detach all loopback devices
       - Call [poweroff|halt|reboot|kexec]
    
    TODO:
       - Umount device-mapper.
       - Make log work. So far it is being useless as we do not parse
         /etc/systemd/system.conf, kernel command line but just
         environment, however we're executed by init and thus have no
         useful variables. Forcing it to target=kmsg/console and
         level=debug also does not produce any output, however writing to
         /dev/console does work (hack used during debug).
    b1b2a107