private network question

[myapple]

Thanks
1 I noticed in the genesis Json file there is a parameter chainid  is this the same as networkid ？

2 i run on my private network miner.start(1) but I wait a long time it is 0.0 kh/s whether I cannot mine on my own private network with only the node of myself? Whether I must setup at least two nodes on my private network in order to mine?

[achow101]

Private network based on what? Bitcoin does not have a "genesis Json file"

[AGD]

chainid is an anti replay attack feature of a shitcoin called Ethereum.
This is the place where you need to go to: https://forum.ethereum.org/