Ubuntu under the ADB command is not available

Today, when you debug your phone, there is an error executing adb root

Error:insufficient Permissions for device

Whether it's changing the data cable or restarting the phone is not useful,

After Baidu a bit, finally found a solution

First execute the LSUSB command

Then find the record of your linked phone, such as

Bus 001 Device 107: ID 0fce:51e1 phone model Communications AB

Go to the/ETC/UDEV/RULES.D path

Then find a file similar to 50-android-usb.rules

In this file, add the

subsystem== "USB", attr{idvendor}== "0fce", attr{idproduct}== "51e1", mode= "0666", owner= "currently logged in User name"

Finally unplug the data cable, reconnect it just fine.

PS: The above is tested in the ubuntu14.04 version

Ubuntu under the ADB command is not available