[redmi Note 2] Adb Devices

[MatrixLinux]

I want make a backup on my PC and I have set on DEBUG USB but in my terminal window when I use command "ADB DEVICES" I can't see my REDMI NOTE 2 available.
I can transfer files but I can't make a backup with adb command.
On my notebook I have UBUNTU 15.04 and I have stock recovery on my REDMI NOTE 2

 

[cbpbxecmecmbeh]

Google it... https://androidonlinux.wordpress.com/2013/05/12/setting-up-adb-on-linux/

 

[MatrixLinux]

Google it... https://androidonlinux.wordpress.com/2013/05/12/setting-up-adb-on-linux/

Thanks .... I solve problem
http://www.techrepublic.com/article/how-to-create-a-full-backup-of-your-android-device-without-root/

and if you insert correct value for REDMI NOTE 2 in config files with this URL
http://ubuntuforums.org/archive/index.php/t-2226702.html