When filing the I-129f it requires either Birth certificate or a copy of all the pages of my passport,what pages mean all.

You need to copy your entire passport regardless of whether you have any stamps or writing in the passport.

all pages, what does a few extra copies cost you? and they might take their own instructions literally.

I agree. A decision to question what is requested or an oversight in not providing enough evidence can delay a decision on your petition. You may want to consider hiring an experienced immigration. However, I appreciate the dilemma in that the filing fees at both USCIS and the State Department are expensive for some. Good luck.

All does mean all. The historical reason given for this practice is so the immigration service or Department of State could determine whether an applicant was attempting to avoid disclosing previous travel issues, such as an overstay, visits to prohibited countries or countries with trafficking issues, and so on. In the current era of scan and chip reader friendly passports the practice seems archaic. But you are better off following the rules until they are changed.