it's pretty easy to extract:
- download http://downloadmirror.intel.com/24389/eng/edison-image-rel1-maint-rel1-ww42-14.zip#_ga=1.264048716.175665116.1400568548
- source poky/oe-init-build-env
- bitbake linux-yocto
- pushd tmp/work/edison-poky-linux/linux-yocto/3.10.17+gitAUTOINC+6ad20f049a_c03195ed6e-r0/