Your ID from home country will not be valid in Canada.
You will need the Canadian ID if you want to show it in Canada to someone. You need not have the passport with you all the time in Canada. As long as you have some sort of ID, that should be good enough (PR Card, Lincense, Photo ID etc)
Reg your Photo ID, when you have the Photo ID (Am assuming you will be landing in Ontario) and you go for the Driving Licence, they will take that photo ID from you and cut in half and keep it. Because once you get the license, that ID has no meaning because your license will have all the value.
For this photo ID, all you need is the landing paper and an address.
You give these to Service Ontario officer and he will give you the receipt with your ID and the card will come to your address in 2-3 weeks time.