Here is the link of the init script:
http://www.murga-linux.com/puppy/viewto ... 481#331481
Mount SFS files using unionfs/aufs?
It doesn't have to be for full installs only, it can be used in frugal too if you want on fly mounting without rebooting system, but seems like it conflicts with puppy's fs layering. Some puplets with aufs are capable to do this with modified init at least according to rexterd. But no go with union atm. There's also some sfs linker pet that uses alternative approach of sfs mounting by creating symlinks. Haven't tried it thought, may be good.
puppy.b0x.me stuff mirrored [url=https://drive.google.com/open?id=0B_Mb589v0iCXNnhSZWRwd3R2UWs]HERE[/url] or [url=http://archive.org/details/Puppy_Linux_puppy.b0x.me_mirror]HERE[/url]