Android USB Debugging on Ubuntu Linux 11.10

I recently set up a new development machine with Ubuntu Linux 11.10, but ran into this problem trying to list connected Android devices with the adb command:

[code]
./adb devices
List of devices attached
???????????? no permissions
[/code]

To fix this, just run these commands from your SDK/platform-tools folder to restart the ADB server with root permissions:
[code]
./adb kill-server
sudo ./adb start-server
[/code]

Now your devices should appear:
[code]
./adb devices
List of devices attached
HT09PR201016 device
[/code]
Also, make sure to enable USB debugging on your device in Settings -> Applications -> Development.