Linux Kernel 4.4 LTS Is Unofficially Available for Ubuntu, Debian, and Linux Mint

But first a few technical details that you need to know before attempting to install this custom Linux kernel package on your OS. The kernel 4.4.0-0-exton package has been compiled by Arne Exton is equivalent to the Linux kernel 4.4 found on the kernel.org website, it is supported only on 64-bit systems, and was compiled the same way as all official Ubuntu kernels are.