Mac搭建以太坊私有链 Mac搭建以太坊私有链

记录过程与问题
一、安装
【Mac搭建以太坊私有链】以go版本的ethereum进行安装

brew tap ethereum/ethereum brew install ethereum# 如果希望基于ethereum的develop分支安装，执行 brew install ethereum --devel

问题：
1、由于我的MacOS系统一直没有更新，导致安装不上，提示XCode版本过低，更新XCode时又提示OS版本过低，没办法重新更新了macos monterey到最新版，然后把所有软件都重新更新了一次
2、go安装过程中出现问题，我是单独进行了go的安装才继续进行下去
安装成功后，可通过 geth --help 查看是否安装好

二、初始化（写入创世区块）
自定义一个创世区块的json配置文件genesis.json，与保存数据目录data

{ "config": { "chainId": 15, "homesteadBlock": 0, "eip155Block": 0, "eip158Block": 0 }, "alloc": {}, "nonce": "0x0000000000000042", "difficulty": "0x020000", "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000", "coinbase": "0x0000000000000000000000000000000000000000", "timestamp": "0x00", "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000", "extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa", "gasLimit": "0x4c4b40" }

文章图片

然后运行初始化命令：

geth --datadir "./data" init ./genesis.json

结果异常如下：

文章图片

原因：用比较短的negative代码写初始块，会报错。修改json如下：

{ "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": { }, "number": "0x0", "gasUsed": "0x0", "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000" }

重复运行初始化命令，初始化成功