This is my version
root@vyos:/home/vyos# /etc/init.d/qemu-guest-agent status
● qemu-guest-agent.service - LSB: QEMU Guest Agent startup script
Loaded: loaded (/etc/init.d/qemu-guest-agent)
Active: active (running) since Thu 2019-10-24 20:35:56 UTC; 14s ago
Process: 11600 ExecStop=/etc/init.d/qemu-guest-agent stop (code=exited,
status=0/SUCCESS)
Process: 11608 ExecStart=/etc/init.d/qemu-guest-agent start (code=exited,
status=0/SUCCESS)
CGroup: /system.slice/qemu-guest-agent.service
└─11615 /usr/sbin/qemu-ga --daemonize -m virtio-serial -p
/dev/virtio-ports/org.qemu.guest_agent.0
Oct 24 20:35:56 vyos systemd[1]: Started LSB: QEMU Guest Agent startup script.
root@vyos:/home/vyos# qemu-ga -V
QEMU Guest Agent 2.1.2
root@vyos:/home/vyos# dpkg -l qemu*
ii qemu-guest-agent 1:2.1+dfsg-12+deb8u1 amd64 Guest-side
qemu-system agent
root@vyos:/home/vyos#
Best regards
Carlos