SYSTEMD-MACHINE-ID-SETUP(1)systemd-machine-id-setupSYSTEMD-MACHINE-ID-SETUP(1)NAMEsystemd-machine-id-setup - Initialize the machine ID in /etc/machine-id
SYNOPSISsystemd-machine-id-setupDESCRIPTIONsystemd-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].
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 ALSOsystemd(1), machine-id(5), dbus-uuidgen(1)NOTES
1. Container Interface
http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface
systemd 212SYSTEMD-MACHINE-ID-SETUP(1)