NanoPi Neo2 Porting Mender to Openwrt

strange problem: first boot startup (install mender client) of mender client terminates. Last /var/log/mender entry:

time=“2019-04-05T10:10:00Z” level=info msg=“device keys not present or bootstrap forced, generating” module=mender

after this mender exits. No message, no zombie. In addition, procd does not restart. Startup script /etc/init.d/mender:

#!/bin/sh /etc/rc.common

START=99
STOP=11
USE_PROCD=1

# If want to use syslog, remove log-file, re-direct stdout, stderr
ARGS="-config /etc/mender/mender.conf -log-file /var/log/mender.log -daemon"
#ARGS="-config /etc/mender/mender.conf -daemon"

boot()
{
        /bin/mkdir -p /var/lib
        /bin/mkdir -p -m 0700 /data/mender
        /bin/ln -sf /data/mender /var/lib/mender
        rc_procd start_service
}

start_service()
{
        pidof mender
        if [ $? -eq 0 ]; then
                return 0
        fi
        #while [ ! -f /var/log/LAST_BOOT ]; do sleep 1; done
        procd_open_instance
        procd_set_param command /usr/bin/mender $ARGS
        procd_set_param respawn 3600 60 0
        #procd_set_param stdout 1
        #procd_set_param stderr 1
        procd_set_param pidfile /var/run/mender.pid
        procd_close_instance
}

Thoughts?
Regards;
Bill