Block chain: Square Ethernet private foundation to build a chain of

1. Create a new genesis.json

{
  "config": {
    "chainId": 666,
    "homesteadBlock": 0,
    "eip150Block": 0,
    "eip150Hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "eip155Block": 0,
    "eip158Block": 0,
    "byzantiumBlock": 0,
    "constantinopleBlock": 0,
    "petersburgBlock": 0,
    "istanbulBlock": 0,
    "ethash": {}
  },
  "nonce": "0x0",
  "timestamp": "0x5ddf8f3e",
  "extraData": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "gasLimit": "0x47b760",
  "difficulty": "0x00002",
  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "coinbase": "0x0000000000000000000000000000000000000000",
  "alloc": {
    "0x1e82968C4624880FD1E8e818421841E6DB8D1Fa4" : {"balance" : "30000000000000000000"}
  },
  "number": "0x0",
  "gasUsed": "0x0",
  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
}

May refer to various parameters explained: https://www.cnblogs.com/wanghui-garcia/p/10256520.html

 

If there is no section below alloc, may appear: Fatal: Failed to write genesis block: unsupported fork ordering: eip150Block not enabled, but eip155Block enabled at 0 errors

Specific reference: http://www.blogjava.net/waterjava/archive/2019/11/28/434937.html

2. Start

2.1. Initialization

geth --datadir /usr/geth/data init /usr/geth/config/genesis.json

2.2 Start private chain and into the console

geth --datadir /usr/geth/data --networkid 666 console

3. Create an account mining

3.1. Create an account

personal.newAccount () and then follow the prompts to enter your password

personal.newAccount the same time ( "123456") to create an account to specify a password

3.2. Mining

miner.start (1) Do not fill in brackets is the default if the full mining

3.3. Stop

miner.stop () to stop mining