SYSTEMD-ID128(1) systemd-id128 SYSTEMD-ID128(1) (NAME) systemd-id128 - (ID128 / UUID) (SYNOPSIS) systemd-id128 [OPTIONS...] new systemd-id128 [OPTIONS...] machine-id systemd-id128 [OPTIONS...] boot-id systemd-id128 [OPTIONS...] invocation-id systemd-id128 [OPTIONS...] var-partition-uuid systemd-id128 [OPTIONS...] show [NAME|UUID...] (DESCRIPTION) id128 UUID sd-id128(3) . (verb) . new . machine-id . machine-id(5) . boot-id . invocation-id . systemd . systemd.exec(5) . show ( UUID GPT) . . . UUID ( UUID GPT ) --uuid . machine-id boot-id show --app-specific=app-id (application-specific) . sd_id128_get_machine(3) . show --app-specific= . var-partition-uuid UUID UAPI.2[1] UUID GPT /var/ GPT /etc/machine-id . . (OPTIONS) : -p, --pretty . . -P, --value . -u/--uuid . . -a app-id, --app-specific=app-id app-id . app-id sd-id128 . machine-id machine-id(5) boot-id show (positional) . . -u, --uuid UUID << >> (canonical representation) . (Universally Unique Identifiers)[2] . . --no-pager (pager) . --no-legend (legend) . --json=MODE JSON. "short" ( ) "pretty" ( ) "off" ( JSON ) . -j --json=pretty --json=short . -h, --help . --version . (EXIT STATUS) 0 . (EXAMPLES) . UUID $ systemd-id128 show --value user-home 773f91ef66d449b5bd83d683bf40ad16 $ systemd-id128 show --value --uuid user-home 773f91ef-66d4-49b5-bd83-d683bf40ad16 $ systemd-id128 show 773f91ef-66d4-49b5-bd83-d683bf40ad16 NAME ID user-home 773f91ef66d449b5bd83d683bf40ad16 . UUID $ systemd-id128 machine-id -u 3a9d668b-4db7-4939-8a4a-5e78a03bffb7 $ systemd-id128 new -u 1fb8f24b-02df-458d-9659-cc8ace68e28a $ systemd-id128 machine-id -u -a 1fb8f24b-02df-458d-9659-cc8ace68e28a 47b82cb1-5339-43da-b2a6-1c350aef1bd1 $ systemd-id128 -Pu show 3a9d668b-4db7-4939-8a4a-5e78a03bffb7 \ -a 1fb8f24b-02df-458d-9659-cc8ace68e28a 47b82cb1-5339-43da-b2a6-1c350aef1bd1 3a9d668b-4db7-4939-8a4a-5e78a03bffb7 1fb8f24b-02df-458d-9659-cc8ace68e28a (47b82cb1-5339-43da-b2a6-1c350aef1bd1) . show . (SEE ALSO) systemd(1), sd-id128(3), sd_id128_get_machine(3) (NOTES) 1. UAPI.2 (UAPI.2 Discoverable Partitions Specification) https://uapi- group.org/specifications/specs/discoverable_partitions_specification 2. (Universally Unique Identifiers) https://en.wikipedia.org/wiki/Universally_unique_identifier#Format systemd 261.2 SYSTEMD-ID128(1)