howto automatically connect wpa_supplicants with wpa-enterprise after reboot

Question

In order to connect to a WPA-enterprise network (eduroam) I currently have to do the following (I am using Raspbian GNU/Linux 9 (stretch)):

Modify

/etc/network/interfaces

to include

auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
 pre-up wpa_supplicant -B -Dwext -i wlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf
 post-down killall -q wpa_supplicant

and I add my network information to:

/etc/wpa_supplicant/wpa_supplicant.conf

when I restart the PI I need to kill the running wpa_supplicant:

ps -C wpa_supplicant
sudo kill $ProcessID

sudo rm /var/run/wpa_supplicant/wlan0

then I can connect to wifi by running wpa_supplicant manually:

sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf

So my question is then: How do I stop the network manager from starting its wpa_supplicant service and instead start the one which gets defined by /etc/wpa_supplicant/wpa_supplicant.conf

thanks in advance

Jesse

EDIT

reading through the link on setting up WIFI it is mentioned:

wpa_supplicant-"$interface".conf in /etc/wpa_supplicant/ e.g. wpa_supplicant-wlan0.conf will only be used by wlan0

so I copied my wpa_supplicant.conf to wpa_supplicant-wlan0.conf and removed my modifications to /etc/network/interfaces and after rebooting am able to automatically connect. This is a much simpler solution.

Answer 1

You don't mention which OS but "the network manager" for Raspbian Jessie and Stretch is dhcpcd any you have killed it by including dhcp in /etc/network/interfaces

Mind you it is unclear what, if anything what you have put in /etc/network/interfaces will actually do, as it does not correspond to ANY normal networking protocol.

See How to set up networking/WiFi