Hi, I just managed to install Tinycore with success.
I'd like to share the issue I encountered:
In step #3, I used cfdisk as described. I turns out the that the generated partition type is 0x82.
In step #6, grub complained that it does not recognized the partition and failed.
I was a bit confused and repeated several steps several times. I finally succeeded when I forced the partition type to 0x83 in step #3.
Hence, I suggest you add a note about this so the installation of the fabulous tinycore is painless for more & more people in the future...
How about that?
-Daniel