Some weeks ago, the Linux4Nano project managed to break the IPod nano 2. Generation.
Thus, it’s now possible to run custom applications on the device.
Rockbox made a port (currently in development mode) which runs quite well.

To get it running, you’ll have to install a bootloader (from Rockbox or Linux4Nano) and Rockbox itself.
The following steps worked for me but due development state, there’s no guarantee for anyone!
If everything worked, nothing will break and all music will be available like before.

Ok? Ok!

- Connect the IPod to your computer
- Download ipodpatcher and make it executable

$ chmod +x ipodpatcher

- Decide if you want to be able to start some other stuff beside Rockbox
- Rockbox only:

# ./ipodpatcher

- Rockbox, original Apple software and other images, download ILoader and:

# ./ipodpatcher -a iloader.ipodx

- Download Rockbox and extract it to the root directory of your IPod
- Safely remove the IPod and restart it (press ‘Select’+'Menu’)

- Now, depending on your bootloader, Rockbox or…

- ILoader will start, select Rockbox with ‘Play/Pause’, the old Apple software with ‘Reverse’ or all the other stuff…