Did you installed
Android SDK and then after running "tools/android" program downloaded platform tools? After that you probably need to create udev rule in "/etc/udev/rules.d":
Code:
SUBSYSTEM=="usb", ATTR{idVendor}=="0123", ATTR{idProduct}=="4567" OWNER="root", GROUP="root", MODE="0666"
where 0123 and 4567 are your Motorola device id (you can retrieve it fom "lsusb"). You can test adb connection by going to directory where it is installed (platform-tools) and invoking it by: