用geth 搭建go-ethereum 私有链

                                                        使用geth端搭建go-ethereum private chain

                                                                           （cpp-ethereum以后再说）

        环境ubuntu系统

        geth

      一,安装geth

       打开unbuntu终端，输入sudo apt-get install geth

       输入geth --help 检验是否安装成功

    

   二,配置创世区块文件

         自定义创世区块文件，将创世区块文件写入一个json文件，并命名，如 genesis.json

         在home 目录下新建一个文件夹，并命名，例如privatechain, 将编译的json文件保存在其中，供使用，

  

      

  样例 1：   {

   "config": {

       "chainId": 15,

       "homesteadBlock": 0,

       "eip155Block": 0,

       "eip158Block": 0

    },

   "difficulty": "200000000",

   "gasLimit": "2100000",

    "alloc":{

       "7df9a875a174b3bc565e6424a0050ebc1b2d1d82": {"balance": "300000" },

       "f41c74c9ae680c1aa78f42e5647a62f353b7bdde": {"balance": "400000" }

    }

}

 

样例2：{

  "config": {

        "chainId": 10,

        "homesteadBlock": 0,

        "eip155Block": 0,

        "eip158Block": 0

    },

  "coinbase"   :"0x0000000000000000000000000000000000000000",

  "difficulty" : "0x20000",

  "extraData"  : "",

  "gasLimit"   : "0x2fefd8",

  "nonce"      : "0x0000000000000042",

  "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",

  "parentHash" :"0x0000000000000000000000000000000000000000000000000000000000000000",

  "timestamp"  : "0x00",

  "alloc"      : {},

}

 

参数解释：

config为配置文件，chainId为私有链id，后面会用到，若为1,则将连上公链，

 

<