If you want to install XAMPP (a great webserver) on your AppleTV and you don’t have enough space on your /dev/disk0s3, you can alternatively install it in your /Users/frontrow/Applications folder with the command :

tar -xvzpf xampp-macosx-0.7.4.tar.gz -C /Users/frontrow/

instead of :

tar -xvzpf xampp-macosx-0.7.4.tar.gz -C /

Finally you will need to create a symlink in /Applications/ with this command line :

sudo ln -s /Users/frontrow/Applications/xampp /Applications/xampp

It works great and helps you to save space on /dev/disk0s3.