之前用的是CENTOS7,后邊發(fā)現(xiàn)有好多搞不定的小坑讨韭,果斷換用ubuntu繼續(xù)學(xué)習(xí)框都。
環(huán)境:ubuntu16.04
另外跑挖礦1H1G是不行的,至少要2G
安裝git
之后的安裝都需要依賴Git
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git
查看版本號(hào)
git --version
git version 2.18.0
1.安裝go語言環(huán)境
(1)下載linux下go的安裝包
$ wget https://studygolang.com/dl/golang/go1.10.3.linux-amd64.tar.gz
(2)下載完后畏邢,進(jìn)入到下載目錄丽声,將其解壓到 /usr/local 文件夾下并在$HOME下新建一個(gè)文件夾go:
$ sudo tar -C /usr/local -xzf go1.10.3.linux-amd64.tar.gz
$ mkdir go
?? (3)配置環(huán)境變量
??? 使用如下命令打開環(huán)境變量配置文件
$ sudo vim ~/.bashrc
????將下列代碼復(fù)制粘貼到文件最后扫沼,wq命令保存退出
export GOROOT=/usr/local/go
export GOBIN=$GOROOT/bin
export GOPATH=$HOME/go
export PATH=$PATH:$GOBIN
????輸入如下命令使環(huán)境變量生效(注意:不用加sudo)
$ source ~/.bashrc
????至此瓢棒,go語言環(huán)境已經(jīng)安裝完成祷膳,輸入go version查看安裝是否成功
$ go version
go version go1.10.3 linux/amd64
????使用如下命令進(jìn)行安裝
$ sudo apt-get install software-properties-common
$ sudo add-apt-repository -y ppa:ethereum/ethereum
$ sudo apt-get update
$ sudo apt-get install ethereum
????安裝完后,輸入geth version查看安裝是否成功
$ geth version
Geth Version: 1.8.11-stable
(1)新建一個(gè)文件夾,例如mychain命锄,用來保存私有鏈的數(shù)據(jù)。創(chuàng)建一個(gè)初始化的配置文件偏化,genesis.json
$ mkdir mychain
$ vim genesis.json
然后將如下的配置信息寫入到genesis.json文件中(注意:chainId不能為0)
{
? "config": {
? ? ? ? "chainId": 3,
? ? ? ? "homesteadBlock": 0,
? ? ? ? "eip155Block": 0,
? ? ? ? "eip158Block": 0
? ? },
? "alloc"? ? ? : {},
? "coinbase"? : "0x0000000000000000000000000000000000000000",
? "difficulty" : "0x200",
? "extraData"? : "",
? "gasLimit"? : "0x2fefd8",
? "nonce"? ? ? : "0x0000000000000042",
? "mixhash"? ? : "0x0000000000000000000000000000000000000000000000000000000000000000",
? "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
? "timestamp"? : "0x00"
}
(2)初始化創(chuàng)世區(qū)塊脐恩,并指定數(shù)據(jù)存放路徑
$ geth --datadir mychain init genesis.json
(3)啟動(dòng)私有鏈節(jié)點(diǎn),并將日志輸入到mychain.log
$ geth --networkid 3 --datadir mychain --identity "mychain" --rpc --rpcaddr 0.0.0.0 --rpcport 8545 --rpcapi "admin,debug,eth,miner,net,personal,shh,txpool,web3" --port 30303 --rpccorsdomain "*" --nodiscover console 2>>mychain.log
具體參數(shù)含義請(qǐng)參考這個(gè)博客:geth命令
啟動(dòng)成功后進(jìn)入控制臺(tái)界面侦讨,如下所示:
Welcome to the Geth JavaScript console!
instance: Geth/mychain/v1.8.11-stable-dea1ce05/linux-amd64/go1.10
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
>
????至此驶冒,ubuntu 16.04 下以太坊私有鏈環(huán)境已經(jīng)搭好,接下在進(jìn)行簡單測(cè)試韵卤。
(1)創(chuàng)建新賬戶
personal.newAccount("密碼")
????創(chuàng)建成功將返回賬戶的地址
> personal.newAccount("123")
"0xe6319357003ff9889b7a849f5ec66b2903d08289"
> user1=eth.accounts[0]
"0x3e46c05151dcce7c994aaeb6f7366fc39ddfc694"
>user2=eth.accounts[1]
"0x611b1c6a1a859da53ed6154aeeec797ea03b9289"
(2)查詢賬戶余額
>eth.getBalance("賬戶地址")
0
>eth.getBalance(user1)? //兩種查詢方式都可以
0
? ? 由于新建賬戶骗污,沒有余額,所以查詢的結(jié)果為 0
> eth.getBalance("0xe6319357003ff9889b7a849f5ec66b2903d08289")
0
(3)開啟/停止挖礦沈条,第一次開起需要等待一段時(shí)間需忿。
miner.start()
第一次要等一陣時(shí)間,大約5分鐘左右
開始都如第一行所示蜡歹,出現(xiàn)加粗則是挖礦成功了
INFO [07-26|18:15:21.550] Generating DAG in progress? ? ? ? ? ? ? epoch=1 percentage=16 elapsed=3m25.200s
INFO [07-26|18:15:33.338] Generating DAG in progress? ? ? ? ? ? ? epoch=1 percentage=17 elapsed=3m36.988s
INFO [07-26|18:15:45.307] Generating DAG in progress? ? ? ? ? ? ? epoch=1 percentage=18 elapsed=3m48.956s
INFO [07-26|18:15:57.158] Generating DAG in progress? ? ? ? ? ? ? epoch=1 percentage=19 elapsed=4m0.808s
INFO [07-26|18:15:59.828] Successfully sealed new block? ? ? ? ? ? number=30 hash=2b5e96…217cae
INFO [07-26|18:15:59.828]? block reached canonical chain? ? ? ? ? number=25 hash=37bbe5…bcba21
INFO [07-26|18:15:59.829]? mined potential block? ? ? ? ? ? ? ? ? number=30 hash=2b5e96…217cae
INFO [07-26|18:16:20.992] Generating DAG in progress epoch=1 percentage=21 elapsed=4m24.642s
INFO [07-26|18:16:28.468] Successfully sealed new block? ? ? ? ? ? number=34 hash=bac86c…464986
INFO [07-26|18:16:28.468]? block reached canonical chain? ? ? ? ? number=29 hash=d874de…8cfc4c
INFO [07-26|18:16:28.469]? mined potential block? ? ? ? ? ? ? ? ? number=34 hash=bac86c…464986
INFO [07-26|18:16:28.489] Commit new mining work? ? ? ? ? ? ? ? ? number=35 txs=0 uncles=0 elapsed=176.283μs
INFO [07-26|18:16:28.541] Successfully sealed new block? ? ? ? ? ? number=35 hash=421888…c52d31
INFO [07-26|18:16:28.541]? block reached canonical chain? ? ? ? ? number=30 hash=2b5e96…217cae
INFO [07-26|18:16:28.542]? mined potential block? ? ? ? ? ? ? ? ? number=35 hash=421888…c52d31
INFO [07-26|18:16:28.543] Commit new mining work? ? ? ? ? ? ? ? ? number=36 txs=0 uncles=0 elapsed=500.117μs
INFO [07-26|18:16:33.099] Generating DAG in progress? ? ? ? ? ? ? epoch=1 percentage=22 elapsed=4m36.749s
INFO [07-26|18:16:34.837] Successfully sealed new block? ? ? ? ? ? number=36 hash=f9ec16…7feafa
INFO [07-26|18:16:34.838]? block reached canonical chain? ? ? ? ? number=31 hash=0ef145…b841bb
INFO [07-26|18:16:34.838]? mined potential block? ? ? ? ? ? ? ? ? number=36 hash=f9ec16…7feafa
INFO [07-26|18:16:34.840] Commit new mining work? ? ? ? ? ? ? ? ? number=37 txs=0 uncles=0 elapsed=498.032μs
INFO [07-26|18:16:40.194] Successfully sealed new block? ? ? ? ? ? number=37 hash=549c29…93f046
miner.stop()
????查看挖礦日志屋厘,可以新開啟一個(gè)終端,輸入下面命令進(jìn)行查看
$ tail -f mychain.log
(4)轉(zhuǎn)賬
????挖礦成功后月而,默認(rèn)會(huì)將以太幣給第一個(gè)賬戶汗洒,查看余額
>eth.getBalance(eth.accounts[0])
135000000000000000000
????eth.accounts:以數(shù)組形式返回為賬戶列表,當(dāng)前只有一個(gè)賬戶父款,可用eth.accounts[0]表示
????新建一個(gè)賬戶溢谤,查看余額
>personal.newAccount("111")
"0x866e46b71923d54e6fee26f42ececc216ca76c1d"
>eth.getBalance(eth.accounts[1])
0
????從accounts[0]向accounts[1]發(fā)送1個(gè)以太幣,首先需要解鎖accounts[0]憨攒,使用如下命令
>personal.unlockAccount(eth.accounts[0],"123",0)
true
????三個(gè)參數(shù)分別為accounts[0]的地址世杀,創(chuàng)建時(shí)的密碼及解鎖時(shí)間(毫秒為單位)。0 代表長時(shí)間解鎖
轉(zhuǎn)賬操作
>eth.sendTransaction({from:eth.accounts[0],to:eth.accounts[1],value:web3.toWei(1,'ether')})
????開啟挖礦等待區(qū)塊驗(yàn)證肝集,轉(zhuǎn)賬成功后玫坛,查詢accounts[1]余額,默認(rèn)單位是Wei
>eth.getBalance(eth.accounts[1])
100000000000000000
可以使用web3.fromWei()命令將wei轉(zhuǎn)為ether包晰。
轉(zhuǎn)自:https://blog.csdn.net/qq_27317475/article/details/80882034