How to get WiFi on Raspberry Pi 2 with Retropie 3.0

[lurch2408]

I am running Retropie and Kodi on my Raspberry Pi 2 but want it to run off my WiFi instead of the Ethernet port. All how to guides are for the old GUI but since the stripped down image it doesn’t exist, any ideas?? It might be simple but I’m a complete newbie lol

[herbfargus]

You can follow this video

Or see the wiki:

https://github.com/retropie/RetroPie-Setup/wiki/Setting-Up-Wifi

[khayman]

Not too difficult. From command line:
sudo nano /etc/network/interfaces

Near the bottom add the following lines:

allow-hotplug wlan0
auto wlan0

iface wlan0 inet dhcp
   wpa-ssid "whatever your ssid is"
   wpa-psk "your network password"

Ctrl-x to exit nano, it will ask you to save. Just hit Y and then enter to accept the filename. Reboot your pi using:
sudo reboot

What I also did that helps is tell raspberry pi to reconnect to my wifi in case I do something stupid like reboot my router. Here’s what I did.

sudo nano ./wifi_checker.sh

Inside good ol nano I used this script:

#!/bin/bash

if ! ifconfig wlan0 | grep -q "inet addr:" ; then
        ifup --force wlan0
        sleep 10
fi

Save and exit like you did before. Then:

sudo chmod +x ./wifi_checker.sh

Next you want to schedule that to run to check the status of your wifi connection. To that we go to crontab.

sudo crontab -e

Go to the bottom and enter the following line:

*/5 * * * * ~./wifi_checker.sh

Exit and save and you should be good to go.

[lakespiral]

When I type sudo /etc/init.d/networking restart it says:
[warn] Running /etc/ini.d/networking restart is deprecated because it may not re-enable some interfaces … (warning).
[….] Reconfiguring network interfaces…RTNETLINK answers: Files exists
Failed to bring up wlan0.
done.

[herbfargus]

Yeah that’s not a problem. Easiest thing to do is just sudo reboot. And then if you configured it right it will work just fine.

[lakespiral]

Well it doesn’t work. Tried with a bunch of different instructions.

[khayman]

Can you give the output of this (go ahead and rip out the SSID/PW if you want):

cat /etc/network/interfaces

Also what model wifi adapter do you have for RPi?

[lakespiral]

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
auto wlan0
iface wlan0 inet static
address 91.153.69.86
netmask 255.255.255.0
gateway 192.168.100.1
wpa-ssid "*****"
wpa-psk "*****"
wireless-power off

Netwjork PICO -WiFi-adapter.

[khayman]

I wouldn’t mess with static settings, personally. I’d let the router use DHCP to identify and configure it and then if you want you can just have the router assign it a static IP once you’ve got connectivity. Even easier, go into raspi-config and set it up to advertise itself on the network as “retropie”. Then when I’m home I can just ssh pi@retropie and be on there no problem.

Also that’s a pretty generic name for a wifi adapter… do you have an actual model number? The lsusb command should list out what you’ve got plugged into USB. Might be helpful to make sure that it’s supported on RPi and that you don’t need any additional drivers or anything.

[lakespiral]

Ralink RT5370 Wireless Adapter. It came with a driver cd. Maybe I should install them somehow?

[monochromatic]

Just use wpa_supplicant.

http://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md

[lakespiral]

I’ve tried that too. Doesn’t work.

Edit: Seems that other people had had problems with the same dongle too: http://www.modmypi.com/blog/how-to-set-up-the-ralink-rt5370-wifi-dongle-on-raspian

[khayman]

Yeah, I’ve got two different models, one for each of my Pi’s and the way I described above worked for both of them out of the box with no additional software needed.

Panda PAU06 (ordered from Amazon)
And this one: https://www.adafruit.com/products/1012

Good luck.

[lurch2408]

Thanks very much 4 the info worked 1st time, I’m now free lol

[fhenning84]

I looked on here until I found this guy with same prob only thing is when I try to restart wlan0 I get this:

sudo ifup wlan0
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/wlan0/00:0f:60:03:ff:5d
Sending on   LPF/wlan0/00:0f:60:03:ff:5d
Sending on   Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 2
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

I can see my device with lsusb:

 lsusb
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0079:0011 DragonRise Inc. Gamepad
Bus 001 Device 005: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 006: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter

my /etc/networking/interfaces:

auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-ssid 'HOME-9196'
wpa-psk 'xXxXxXxXxXxXx' #Not listing my wpa2 lol

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
    ssid="HOME-9196"
    psk="xXxXxXxXxXxXx"
}

ifconfig:

eth0      Link encap:Ethernet  HWaddr b8:27:eb:60:8a:a0
          inet addr:10.0.0.2  Bcast:10.0.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3602 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2596 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:237535 (231.9 KiB)  TX bytes:393604 (384.3 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:300 (300.0 B)  TX bytes:300 (300.0 B)

wlan0     Link encap:Ethernet  HWaddr 00:0f:60:03:ff:5d
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

Any help would be appreciated =)
Any advice?

[khayman]

I think it’s that Ralink 5370 adapter. Both you and lakespiral have it and are having issues when everything else seems normal. Also on that link that lakespiral posted people are still having issues even with the “fix”.

[lakespiral]

:(

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