I have this same problem, Aparted (not link2sd) gets stuck on installing mkef2s. I wanted to use Aparted because it gives the option of formatting in ext4. The page hubsabub linked mentions mini partition tool something, but the screenshot shows it doesn't have ext4. I also tried easeus partition editor on my pc, but it doesn't do ext4 either. jramos mentioned clock speed, but he was talking about link2sd not Aparted. tried it anyways, no difference, and my wife has stock rom and kernel on her phone and gets the same problem.
So I'll chime in, does anyone know why Aparted just sits stuck on the installing mke2fs screen? Can anyone point out a good app or pc program that I can use to format as ext4? I know I could use gparted, but I don't have a spare thumb drive or cd to boot the live client
