ask for hostname and create cfg file if not found

+ remove NETWORK.address setting

sethostname.sh

@@ -1,7 +1,7 @@
 ETHNAME=$(cat /sys/class/net/enp1s0/address)
 ETHNAME=${ETHNAME//:/}
 APUID=${ETHNAME: -6}
-FOUND=( /root/aputools/servercfg/*_$APUID.cfg )
+FOUND="$(shopt -s nullglob; echo /root/aputools/servercfg/*_$APUID.cfg)"
 if [ -z "$FOUND" ]; then
    HOSTNAME=apu$APUID
 else
@@ -10,5 +10,6 @@ else
    if [ $HOSTNAME != "apu$APUID" ]; then
        HOSTNAME=${HOSTNAME%_*}
    fi
+   echo "hostname $HOSTNAME"
 fi
 echo $HOSTNAME > /etc/hostname