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CentOS 7.0 - man page for systemd-machine-id-setup (centos section 1)

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SYSTEMD-MACHINE-ID-SETUP(1)	     systemd-machine-id-setup	      SYSTEMD-MACHINE-ID-SETUP(1)

       systemd-machine-id-setup - Initialize the machine ID in /etc/machine-id


       systemd-machine-id-setup may be used by system installer tools to initialize the machine
       ID stored in /etc/machine-id at install time with a randomly generated ID. See machine-
       id(5) for more information about this file.

       This tool will execute no operation if /etc/machine-id is already initialized.

       If a valid D-Bus machine ID is already configured for the system, the D-Bus machine ID is
       copied and used to initialize the machine ID in /etc/machine-id.

       If run inside a KVM virtual machine and a UUID is passed via the -uuid option, this UUID
       is used to initialize the machine ID instead of a randomly generated one. The caller must
       ensure that the UUID passed is sufficiently unique and is different for every booted
       instanced of the VM.

       Similarly, if run inside a Linux container environment and a UUID is set for the container
       this is used to initialize the machine ID. For details see the documentation of the
       Container Interface[1].

       The following options are understood:

       -h, --help
	   Prints a short help text and exits.

	   Prints a short version string and exits.

       On success, 0 is returned, a non-zero failure code otherwise.

       systemd(1), machine-id(5), dbus-uuidgen(1)

	1. Container Interface

systemd 208							      SYSTEMD-MACHINE-ID-SETUP(1)
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