2019-05-24 18:02:00 -07:00
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## 安装Gaia
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本教程将详细说明如何在你的系统上安装`gaiad`和`gaiacli`。安装后，你可以作为[全节点](./join-mainnet.md)或是[验证人节点](./validators/validator-setup.md)加入到主网。
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### 安装Go
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按照[官方文档](https://golang.org/doc/install)安装`go`。记得设置环境变量`$GOPATH`,`$GOBIN`和`$PATH`:
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```bash
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mkdir -p $HOME/go/bin
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echo "export GOPATH=$HOME/go" >> ~/.bash_profile
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echo "export PATH=\$PATH:\$GOPATH/bin" >> ~/.bash_profile
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echo "export GO111MODULE=on" >> ~/.bash_profile
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source ~/.bash_profile
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```
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::: tip
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Cosmos SDK需要安装**Go 1.12+**
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:::
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### 安装二进制执行程序
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接下来，安装最新版本的Gaia。需要确认您 `git checkout 了正确的[发布版本](https://github.com/cosmos/cosmos-sdk/releases)。
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::: warning
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对于主网，请确保你的版本大于或等于`v0.33.0`
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:::
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```bash
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2019-07-05 08:10:17 -07:00
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git clone -b <latest-release-tag> https://github.com/cosmos/gaia
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cd gaia && make install
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2019-05-24 18:02:00 -07:00
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```
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> *注意*: 如果在这一步中出现问题，请检查你是否安装的是Go的最新稳定版本。
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等`gaiad`和`gaiacli`可执行程序安装完之后，请检查:
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```bash
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$ gaiad version --long
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$ gaiacli version --long
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```
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`gaiacli`的返回应该类似于：
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```
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cosmos-sdk: 0.33.0
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git commit: 7b4104aced52aa5b59a96c28b5ebeea7877fc4f0
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go.sum hash: d156153bd5e128fec3868eca9a1397a63a864edb5cfa0ac486db1b574b8eecfe
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build tags: netgo ledger
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go version go1.12 linux/amd64
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```
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##### Build Tags
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build tags指定了可执行程序具有的特殊特性。
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| Build Tag | Description |
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| --------- | ----------------------------------------------- |
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| netgo | Name resolution will use pure Go code |
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| ledger | 支持Ledger设备(硬件钱包) |
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### 接下来
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然后你可以选择 加入[主网](./join-mainnet.md)、[公共测试网](./join-testnet.md) 或是 [创建私有测试网](./deploy-testnet.md)。
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