fix boxtools for rpi

- remove to_cm4
- create replace_in_file

to_system/etc/default/isc-dhcp-server

@@ -1,18 +0,0 @@
-# Defaults for isc-dhcp-server (sourced by /etc/init.d/isc-dhcp-server)
-
-# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
-#DHCPDv4_CONF=/etc/dhcp/dhcpd.conf
-#DHCPDv6_CONF=/etc/dhcp/dhcpd6.conf
-
-# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
-#DHCPDv4_PID=/var/run/dhcpd.pid
-#DHCPDv6_PID=/var/run/dhcpd6.pid
-
-# Additional options to start dhcpd with.
-#	Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
-#OPTIONS=""
-
-# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
-#	Separate multiple interfaces with spaces, e.g. "eth0 eth1".
-INTERFACESv4="eth1 eth2 eth3"
-INTERFACESv6=""

to_system/etc/profile.d/welcome.sh

@@ -1,7 +1,7 @@
 export EDITOR=nano
 echo "-----------------------------------------------------"
 echo "Welcome to $HOSTNAME $(hostname -I)"
-echo "ethernet addr $(cat /sys/class/net/eth0/address) .. $(cat /sys/class/net/eth3/address)"
+echo "ethernet addr $(cat /sys/class/net/eth0/address)"
 function service_status () {
     for name in $@; do \
       enabled=$(systemctl is-enabled ${name} 2> /dev/null) && \

to_system/etc/systemd/system/sethostname.service

@@ -5,7 +5,7 @@ Before=network.pre-target
 
 [Service]
 Type=oneshot
-ExecStart = /usr/bin/bash /home/l_samenv/boxtools/sethostname.sh
+ExecStart = /usr/bin/bash /home/l_samenv/boxtools/rpihostname.sh
 RemainAfterExit=yes
 
 [Install]