[Odroid-C2 - Wifi connection lost] - Kernel updated and Wifi fails - a Bug?

[gil44]

Hello

I recently updated the kernel of Jessie on the Od-C2:
# uname -a
Linux odroidc2 3.14.65-odroidc2 #33 SMP PREEMPT Sat Mar 26 14:50:37 CET 2016 aarch64 GNU/Linux

Consequently, with this new environment, the wifi connection fails:

# iw wlan0 scan
nl80211 not found.

when started mannually, the wpa_supplicant starts +/-:
# wpa_supplicant -B -i wlan0 -O /var/run/wpa_supplicant -c /etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant

But:
# ifup wlan0
wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
Failed to bring up wlan0.

# iwconfig returns:
eth0      no wireless extensions.

ip6tnl0   no wireless extensions.

sit0      no wireless extensions.

lo        no wireless extensions.
 

The wireless (RT3072) dongle is well recognized:
# lsusb
Bus 001 Device 004: ID 1d57:fa60 Xenta
Bus 001 Device 006: ID 148f:3072 Ralink Technology, Corp. RT3072 Wireless Adapter
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 6557:5500  
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

And restarting the wicd service doesn't change nothing.

(The wired internet-connection is full functional)

I dig in many forums but I didn't found nothing similar...

Seems to be a bug ?

[Igor]

Which kernel did you use before? You were using some other image and you are only using our kernel?

[gil44]

I was using your kernel before the update, that was 100 % wifi-functional

[Igor]

Probably some bug. There were many updates on our and their side ... and C2 is months away from stable.

 

Perhaps some stupid idea - remove /etc/udev/rules.d/70-persistent-net.rules and try again.

[gil44]

Hi!

Thanks for your suggestion!

 

"...and C2 is months away from stable"

, a sweet euphemism : ).

 

Unfortunately, removing the persistent rules has no effect on the wifi...

 

I will build again a new OS with your kernel, 

and avoid to change again to the c2 version!

 

Gil

[Igor]

Can you point me to 100% working kernel, which version of kernel and armbian build? 

[gil44]

Hello

Thank you for your attention and sorry for the delay... family time..

The image before that was working fine was the 'Armbian_5.06_Odroidc2_Debian_jessie_3.14.65_desktop' version.

To be installed, the root partition was transferred with the nand-sata-install script to an USB 3.0 storage device and the depository address was changed like suggested here somewhere, replacing 'http://httpredir.debian.org/debian' to 'http://ftp.uk.debian.org/debian' in the /etc/apt/sources.list file.

Recently, after an upgrade, the wifi has been totally lost.

 

I built today a new image from the last version of your software (http://mirror.igorpecovnik.com/Armbian_5.10_Odroidc2_Debian_jessie_3.14.67_desktop.7z), transferred the root partition of the SD to an USB 3.0 device with the incorporated nand -script, made an update/upgrade (keeping the http://httpredir.debian.org/debian address), installed different programs like the navit and gps-daemon and everything works now (again!) like a charm.

 

So... It was well a bug before...

 

A very good day-end!