Add

overlay/etc/systemd/system/weston.service

@@ -0,0 +1,49 @@
+[Unit]
+# Make sure we are started after logins are permitted.
+Description=Weston Wayland compositor startup
+Requires=systemd-user-sessions.service
+After=systemd-user-sessions.service
+After=plymouth-quit-wait.service
+Wants=dbus.socket
+After=dbus.socket
+Requires=weston.socket
+RequiresMountsFor=/run
+After=getty@tty7.service
+Conflicts=getty@tty7.service plymouth-quit.service
+Before=graphical.target
+ConditionPathExists=/dev/tty0
+
+[Service]
+Type=notify
+StandardInput=tty
+UtmpIdentifier=tty7
+User=root
+#Group=odroid
+EnvironmentFile=-/etc/default/weston
+Environment="XDG_RUNTIME_DIR=/run/user/0"
+Environment="DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/0/bus"
+#Environment=XDG_SEAT=seat-weston
+Environment=XDG_SESSION_CLASS=user
+#Environment=XDG_SESSION_TYPE=wayland
+#Environment=XDG_SESSION_DESKTOP=weston
+#Environment=HOME=/home/odroid
+#Environment=SEATD_VTBOUND=0
+
+PAMName=login
+
+TTYPath=/dev/tty7
+TTYReset=yes
+TTYVHangup=yes
+TTYVTDisallocate=yes
+
+StandardInput=tty-fail
+StandardOutput=journal
+StandardError=journal
+
+UtmpIdentifier=tty7
+UtmpMode=user
+
+ExecStart=/usr/bin/weston --log=/home/odroid/weston.log --seat=seat-weston --drm-device=card1 --socket=weston-0 --tty=7 --modules=systemd-notify.so
+
+[Install]
+WantedBy=graphical.target

overlay/etc/systemd/system/weston.socket

@@ -0,0 +1,5 @@
+[Unit]
+Description=Weston, a Wayland compositor
+
+[Socket]
+ListenStream=%t/weston-0