please type this in x-term:

Then copy output.txt from your microSD card and attach it to your a post here so we can view the contents.

PS: please note that the "-l" after sfdisk is an L, and that "mmcblk" also has an L. Everything else is a one.

I'm not sure how much space I had left, I didn't actually delete the /home or opt folder on rootfs.. I think you should have at least 30 MB free.

Also, I made a few corrections to other parts of the documentation (nothing involving step 5) or 6) that you posted above), but in any case you should re-download the zip just to make sure everything you have is correct.