According to
Wikipedia:[/U]
In my attempt to get 10.1 on a flash drive, 10.1 installed on a 2 GB Flash Drive, and still had some space left.
The 10.4 System folder on my iBook G3 is 1.65 GB, and it is a full install. I don't know why you said 40 GB
According to
Wikipedia:
And yes, my HD is a little on the small side, but it can store a lot more than 10.4 and Mac OS 9
FWIW, Wikipedia is not an authority. It is simply a good starting point to find the information that you need. Considering what some people on this forum have done, it is to your credit that you did at least go to Wikipedia.
Now to the Real World. I will repeat myself. Your hard drive is woefully inadequate to support even one OS, particularly if that OS is MacOS X. Your research has revealed the irreducible minima for installation--if you leave some stuff out. MacOS X 10.4 comes with
Garageband which pushes its space requirements out to 40 GB or so.
The numbers that I gave you are what you need if you intend to actually work with your system. The Wikipedia numbers are for those who want to boot the OSes as curiosities. Be productive or be frustrated. The choice is yours.