/root/.vnc/xstartup

xsetroot -solid grey
xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
#
setxkbmap -model jp106 -layout jp
awesome &
virt-manager

cp /lib/systemd/system/vncserver.service /etc/systemd/system/vncserver@:1.service

/etc/systemd/system/vncserver@:1.service

 [Unit]
 Description=vncserver

 [Service]
-User=
+User=root
 ExecStart=/usr/bin/vncserver %i

 [Install]
 WantedBy=multi-user.target

systemctl enable vncserver@:1
systemctl start vncserver@:1