In particular, after initiating the auto-reset of the Leonardo (using the serial port selected in the Tools > Serial Port menu), the Arduino software waits for a new virtual (CDC) serial / COM port to appear - one that it assumes represents the Leonardo bootloader. However, because the Leonardo's serial port is virtual, it disappears when the boards resets, the Arduino software uses a different strategy for timing the upload than with the Uno and other boards. This works more or less the same way as with the Uno: the Arduino software initiates a reset of the Leonardo, launching the bootloader - which is responsible for receiving, storing, and starting the new sketch. Click the upload button in the Arduino software and your sketch will be automatically uploaded onto the Leonardo and then started. In general, you upload code to the Leonardo as you would with the Uno or other Arduino boards. There is no need to install drivers for Ubuntu 10.0.4
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