Get a tubeless to seat It takes a volume of air to seat a tubeless.  Even if you lube the tire it takes a volume of air to get it to pop onto the seat. 
Cannot deliver that volume with my floor pump. 
At the shop they remove the core to the presta and have this conversion tube they put over the open stem with a compressor on the other end.
It depends on what type of tubeless standard you are using. 


UST


UST rims are designed to be able to be inflated with a floor pump. The rim profile has an inner channel. The tyre bead should be placed in this as per the picture when you begin inflating the tyre. When it reaches a high enough pressure it pops into place and you can continue to seat it easily with the pump. You can also add sealant before inflating with USTs.




Tubeless Ready


Tubeless Ready have a shallower rim bed that require far less volume to inflate with a floor or CO2 cartridge. This is trickier with a floor pump and people often remove the valve core to allow a higher volume of air in. Once the tyre is suited you can also to remove the core to add sealant.


Ghetto Setups


If you are using any other tyre/ rim combination it's really just luck if you're going to get a tyre to seat with floor pump, compressed air or ever at all.