1、首先查看cmake的版本：cmake --version，需要3.3以上
安装cmake的方法：
先移除原有版本：
yum remove cmake
下载安装：一步步的执行就好。
cd /usr/local/src wget https://cmake.org/files/v3.19/cmake-3.19.3.tar.gz tar zxvf cmake-3.19.3.tar.gz cd cmake-3.19.3 ./configure make make install
这个时候再用cmake --version查看一下版本号，就是刚安装的最新的了。
2、安装Git, Nodejs, gcc-c++, ntp, epel 等辅助工具
yum update -y && yum install git bzip2 gcc-c++ ntp epel-release nodejs -y
3、安装golang，Geth使用Golang编译的，所以需要安装Golang。
wget https://studygolang.com/dl/golang/go1.15.7.linux-amd64.tar.gz tar zxvf go1.15.7.linux-amd64.tar.gz vim ~/.bash_profile 添加 export PATH=$PATH:/usr/local/src/go/bin保存 source ~/.bash_profile 查看版本：go version
4、下载go-ethereum
cd /usr/local/src git clone https://github.com/ethereum/go-ethereum.git cd go-ethereum/ make all echo "export PATH=$PATH:/usr/local/src//go-ethereum/build/bin" >> /etc/profile source /etc/profile
5、如果在make all的时候报下面的错，请执行：mv /usr/local/include/iconv.h /usr/local/include/iconv.h.back
6、加到环境变量：
echo "export PATH=$PATH:/usr/local/src/go-ethereum/build/bin" >> /etc/profile source /etc/profile
7、完成
8、创建初始块
mkdir -p /usr/local/src/go-ethereum/chain
vim genesis.json 代码如下：
{
"config": {
"chainId": 888,
"homesteadBlock": 0,
"eip150Block": 0,
"eip150Hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"eip155Block": 0,
"eip158Block": 0
},
"alloc": {
"dbdbdb2cbd23b783741e8d7fcf51e459b497e4a6": {
"balance": "1606938044258990275541962092341162602522202993782792835301376"
},
"e6716f9544a56c530d868e4bfbacb172315bdead": {
"balance": "1606938044258990275541962092341162602522202993782792835301376"
}
},
"nonce": "0x000000000000002a",
"difficulty": "0x020000",
"mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"coinbase": "0x0000000000000000000000000000000000000000",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x",
"gasLimit": "0x2fefd8"
}
初始化：geth --datadir data0 init genesis.json
9、制作启动私有链脚本：
vim start.sh
geth --nodiscover --datadir data0 --networkid 4224 --rpc --rpcport 8545 --port 30300 --rpccorsdomain "*" -rpcapi eth,web3,personal,net,db console 2> log.txt
如图所示，启动完成：
接下来我们搭建浏览器