It has been a few day already since the release of Absinthe to untethered jailbreak A5 idevices including iPhone 4S and iPad 2. However the previous Absinthe is only available for Windows and Mac so the developers want to provide a wider range of support for different OS.
Now it is time for Linux. Even it is quite late but the tool is available for you. You can download GreenPois0n Absinthe from the link below.
If you have already download this version, you can follow our instruction here to untethered jailbreak iPhone 4S and iPad 2. If you want to download GreenPois0n Absinthe for Windows and Mac, click here.