I'm trying to use adb from a Ubuntu(+Cinnamon) machine. The problem is that I get following message from adb devices:

List of devices attached
TA8830OIVO  no permissions

Where TA8830OIVO is my Motorola G device.

I changed android rules in /etc/udev/rules.d/51-android.rules

SUBSYSTEM=="usb", ATTR{idVendor}=="22b8", ATTR{idProduct}=="2e76",
MODE="0666", GROUP="plugdev", SYMLINK+="android_adb", OWNER="axel"

I also restarted udev service and adb being installed on my personal laptop I'm the only user with all the priveledges needed (plugdev group and so on).

Is there a way to run adb without invoking sudo?

  • 1
    Restarting udev and sudo udevadm trigger didn't work for me. I had to restart the computer and then it worked just fine – Rafael Xavier Feb 19 '18 at 19:22

Change the USB mode in your phone to File Transfer. That's what worked for me.

  • The opposite is true for me: USB debugging does not work during file transfer mode on some old devices. – Miha_x64 Jul 16 '18 at 11:18
  • Update: just noticed that in my phone (android one), usb debugging can also be enabled while in charging mode in Developer Settings. – NuttLoose Jan 17 at 13:12
  1. Remember to run sudo udevadm trigger to get the changes applied (or reboot, but where's the fun in that).
  2. Instead of writing your own rules use https://github.com/M0Rf30/android-udev-rules
  3. Make sure you have the latest ADB version (1.0.35 102d0d1e73de-android). Earlier ones didn't work with USB-C for me.
  • Thanks but it's kinda old question. I switched to Mac 2 years ago. I find it stupid to do stuff like lsusb and then modify rules when it should be done automatically... I gave up after so many years of ubuntu use. Can't find a decent Linux Desktop system. – shadox Apr 8 '16 at 21:06
  • The question is 6 months old and still valid for posterity. 1y ago I dumped OS X after a 3y affair and went back to Linux for similar reasons ;). Linux has parts where it gets frustrating but there's a similar amount of tinkering required in OS X if you use homebrew+zsh+iTerm2. The difference is that stuff if mostly closed-source or outdated versions of FOSS but with a nice GUI and UX (for the most part). Using the rules from the repo makes it mostly a one-time setup step. Considering the arcana of getting the Android SDK to work in a sane way it's toddlers-play. – zamber Apr 10 '16 at 0:08
  • 1
    Running this and service udev restart didn't work for me. I had to restart the computer and then it worked just fine. – Rafael Xavier Feb 19 '18 at 19:21
  • On ubuntu 16.04 setting the udev rules, changing the usb mode on phone to file transfer worked like a charm. No restart needed. – Gautam Jun 22 '18 at 14:13
  • On ubuntu 16.04 with a Pixel 2 adding the rules from the gitbub of point 2 works without even going in to file transfer mode. – Mike Hanafey Oct 24 '18 at 15:21

Define custom gradle function:

task _adb_restart {
def adb = android.getAdbExe().toString()
group '__custom'
  doLast {
    exec {
      commandLine 'bash', '-c', '/bin/echo **root_password** | sudo -S ' + adb + ' kill-server'
    exec {
      commandLine 'bash', '-c', '/bin/echo **root_password** | sudo -S ' + adb + ' devices'

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