SYSTEMD-MACHINE-ID-SETUP(1) systemd-machine-id-setup SYSTEMD-MACHINE-ID-SETUP(1)
NAME
systemd-machine-id-setup - Initialize the machine ID in /etc/machine-id
SYNOPSIS
systemd-machine-id-setup
DESCRIPTION
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.
Similar, 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].
Use systemd-firstboot(1) to initialize the machine ID on mounted (but not booted) system images.
OPTIONS
The following options are understood:
--root=root
Takes a directory path as an argument. All paths will be prefixed with the given alternate root path,
including config search paths.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO
systemd(1), machine-id(5), dbus-uuidgen(1), systemd-firstboot(1)
NOTES
1. Container Interface
http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface
systemd 219 SYSTEMD-MACHINE-ID-SETUP(1)
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