1， 定制创世区块
1.1 创建工作目录
创建工作目录“devnet”，创建两个节点目录
$mkdir devnet
$cd devnet
$mkdir node1 ndoe2
1.2 生成账户
初始化两个节点的以太坊账户与密码
$geth --datadir node1/ account new
$geth --datadir node2/ account new
$echo {ACCOUNT1} >> accounts.txt
$echo {ACCOUNT2} >> accounts.txt
$echo {PASSWD1} > node1/password.txt
$echo {PASSWD2} > node2/password.txt
1.3 创建创世区块
使用以太坊自带工具puppeth生成创世区块
$puppeth
Please specify a network name to administer (no spaces, please)
> devnet
What would you like to do? (default = stats)
1. Show network stats
2. Configure new genesis
3. Track new remote server
4. Deploy network components
> 2
Which consensus engine to use? (default = clique)
1. Ethash - proof-of-work
2. Clique - proof-of-authority
> 2
How many seconds should blocks take? (default = 15)
> 3 // for example
Which accounts are allowed to seal? (mandatory at least one)
> 0x87366ef81db496edd0ea2055ca605e8686eec1e6 //copy paste from account.txt :)
> 0x08a58f09194e403d02a1928a7bf78646cfc260b0
Which accounts should be pre-funded? (advisable at least one)
> {ACCOUNT1} // free ethers !
> {ACCOUNT2}
Specify your chain/network ID if you want an explicit one (default = random)
> {NETWORK_ID} // for example. Do not use anything from 1 to 10
Anything fun to embed into the genesis block? (max 32 bytes)
>
What would you like to do? (default = stats)
1. Show network stats
2. Manage existing genesis
3. Track new remote server
4. Deploy network components
> 2
1. Modify existing fork rules
2. Export genesis configuration
> 2
Which file to save the genesis into? (default = devnet.json)
> genesis.json
INFO [01-23|15:16:17] Exported existing genesis block
What would you like to do? (default = stats)
1. Show network stats
2. Manage existing genesis
3. Track new remote server
4. Deploy network components
> ^C // ctrl+C to quit puppeth
生成了genesis.json到当前路径
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