What is the starting value for each?
It is 1 across the board.
The metatype attributes table is on p. 64
...that all Physical and Mental Attributes start with a value 1 and then points are assigned from Priority
Yes.
You can also spend adjustment points from meatype if your chosen metatype have maximum attribute ratings that are above 6 (for example elf charisma and agility or ork strength or body).
And at the end of chargen you can also spend customization karma where each new attribute rating cost new rank x 5 karma (same as post chargen).
Some people like to spend karma on attributes that are still 1 (since it only cost 10 karma to raise it to 2).
Maximum attribute ratings are listed in the metatype attributes table.
Note that only one (physical or mental) attribute may have metatype maximum rating during chargen.
Edge is only raised by Metatype (Adjustment Points)
You can also spend customization karma at the end of chargen where each new attribute rating cost new rank x 5 karma (same as post chargen).
Maximum edge rating during chargen is listed in the metatype attributes table (6 for everyone except human that may raise edge up to 7).
Yet the Metatype Attributes Table lists Edge as 1-N for all metatypes. so what is the starting value of Edge?
All races start chargen with Edge 1.
Then you spend adjustment points (optional).
Then you spend customization karma (optional).
And once game start you spend karma (optional).
Only attributes that does not start 1 for 'free' during chargen are Essence, Magic and Resonance.
Essence start at 6.0 for all metatypes and cannot be raised (but the more augmentations such as cybernetics and bioware you install the more you reduce it, if it reach 0 you supposedly die).
Magic is an attribute that only magicians and adepts have and resonance is an attribute that only technomancers have. They all get their starting value depending on their Magic or Resonance priority. Then you raise it with adjustment points. They it might be reduced if you install augmentations. Then you can also raise it with customization karma at the end of chargen. And after chargen you can also increase it with regular karma.