SYSTEMD-SYSUSERS(8) systemd-sysusers SYSTEMD-SYSUSERS(8) (NAME) systemd-sysusers - (SYNOPSIS) systemd-sysusers [OPTIONS...] [CONFIGFILE...] systemd-sysusers.service (DESCRIPTION) systemd-sysusers sysusers.d(5) . sysusers.d(5) . --replace=PATH PATH . . "-" . ( ) . . (OPTIONS) : --root=root . root . (sandboxing) . sysusers.d(5) (hermetic) . . --image=image . . --root= . GPT UAPI.2 Discoverable Partitions Specification[1]. systemd-nspawn(1)' . . --image-policy=policy systemd.image-policy(7). --image= . "*" . --replace=PATH . sysusers.d(5) PATH . . . RPM radvd echo 'u radvd - "radvd daemon"' | \ systemd-sysusers --replace=/usr/lib/sysusers.d/radvd.conf - radvd /usr/lib/sysusers.d/radvd.conf . /etc/sysusers.d/radvd.conf /etc/sysusers.d/00-overrides.conf . "radvd" . . --dry-run . . --inline . . --cat-config . . --tldr . <<>> . . --no-pager (pager) . -h, --help . --version . (CREDENTIALS) systemd-sysusers ImportCredential=/LoadCredential=/SetCredential= ( systemd.exec(5) ). : passwd.hashed-password.user . "root" (drop-in) . . (stateless) /etc/ . . passwd.plaintext-password.user "passwd.hashed-password.user" (plaintext) . . . . passwd.shell.user (shell) . . sysusers.extra . drop-in sysusers.d/ . drop-in . . systemd-sysusers.service "passwd.hashed-password.root" "passwd.plaintext-password.root" "passwd.shell.root" "sysusers.extra" . /etc/ root "systemd" : # systemd-nspawn --image=... --set-credential=passwd.hashed-password.root:'$y$j9T$yAuRJu1o5HioZAGDYPU5d.$F64ni6J2y2nNQve90M/p0ZP0ECP/qqzipNyaY9fjGpC' ... . mkpasswd(1) . (EXIT STATUS) 0 . (SEE ALSO) systemd(1), sysusers.d(5), Users, Groups, UIDs and GIDs on systemd systems[2], systemd.exec(5), mkpasswd(1) (NOTES) 1. UAPI.2 Discoverable Partitions Specification https://uapi- group.org/specifications/specs/discoverable_partitions_specification 2. Users, Groups, UIDs and GIDs on systemd systems https://systemd.io/UIDS-GIDS systemd 261.2 SYSTEMD-SYSUSERS(8)