I know for another post that using apt-get source linux-image-$(uname -r) I can get the kernel source, but I'm usign the 3.0.0-13-lowlatency-pae kernel and using the command, I got this message: Picking 'linux-lowlatency' as source package instead of 'linux-image-3.0.0-13-lowlatency-pae' So, I will appreciate any help, hope that someone know where it can be located. Thanks everybody in advance.