update to dhcpcd5-7

[t0b3]

• update to buster's dhcpcd5
• keep wlan country setting
• make MAC setting portable to other RPi
• omit auto power off due to power management
• replace cronjob with call in rc.local to drop the @reboot sleep 30 hack

[lukicdarkoo]

Fantastic, thank you!

There are two things I am not sure about

[lukicdarkoo]

Why deleting dhcpcd?

[t0b3]

cron: omit as it's no longer needed
dhcpcd: dhcpcd and buster's pre-installed dpcpcd5 tend to interfere - thus either we may omit it and go for system default ... or explicitly require dhcpcd5 if you prefer

[lukicdarkoo]

Why not something like?

Suggested change

	sed -i 's:# By default this script does nothing.:# By default this script does nothing.\n\n/bin/rpi-wifi.sh:' /etc/rc.local
	sudo bash -c 'cat >> /etc/rc.local' << EOF
	/bin/rpi-wifi.sh
	EOF

[t0b3]

Because the script won't finish... look at the last line exit 0

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.


##### restart network interfaces to ensure right startup order ... ###
ifdown --force wlan0 && sudo ifdown --force ap0 && sudo ifup ap0 && sudo ifup wlan0
sysctl -w net.ipv4.ip_forward=1
iptables -t nat -A POSTROUTING -s 192.168.10.0/24 ! -d 192.168.10.0/24 -j MASQUERADE
systemctl restart dnsmasq
iwconfig wlan0 power off
###


# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi

exit 0

[lukicdarkoo]

Oh, yes, I see. Not a clean way, but I don't see a better solution.

[lukicdarkoo]

Thank you!

[t0b3]

I want to adapt this to a clean way