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SYSTEMD-MACHINE-ID-COMMIT(1)                  systemd-machine-id-commit                  SYSTEMD-MACHINE-ID-COMMIT(1)



NAME
       systemd-machine-id-commit - Commit transient machine ID to /etc/machine-id

SYNOPSIS
       systemd-machine-id-commit

DESCRIPTION
       systemd-machine-id-commit may be used to write on disk any transient machine ID mounted as a temporary file
       system in /etc/machine-id at boot time. See machine-id(5) for more information about this file.

       This tool will execute no operation if /etc/machine-id doesn't contain any valid machine ID, isn't mounted as
       an independent temporary file system, of /etc is read-only. If those conditions are met, it will then write
       current machine ID to disk and unmount the transient /etc/machine-id file in a race-free manner to ensure that
       this file is always valid for other processes.

       Note that the traditional way to initialize the machine ID in /etc/machine-id is to use
       systemd-machine-id-setup by system installer tools. You can also 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), systemd-machine-id-commit.service(8), systemd-machine-id-setup(1), machine-id(5), systemd-
       firstboot(1)



systemd 219                                                                              SYSTEMD-MACHINE-ID-COMMIT(1)