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17_ecosystem/17.2_coreos_install.md
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## 17.2 安装 Fedora CoreOS
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本节涵盖了相关内容与详细描述,主要探讨以下几个方面:
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### 17.2.1 下载 ISO
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在[下载页面](https://getfedora.org/coreos/download/) `Bare Metal & Virtualized` 标签页下载 ISO。
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### 17.2.2 编写 FCC
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FCC 是 Fedora CoreOS Configuration (Fedora CoreOS 配置) 的简称。
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```yaml
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## example.fcc
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variant: fcos
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version: 1.0.0
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passwd:
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users:
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- name: core
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ssh_authorized_keys:
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- ssh-rsa AAAA...
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```
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将 `ssh-rsa AAAA...` 替换为自己的 SSH 公钥 (位于 `~/.ssh/id_rsa.pub`)。
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### 17.2.3 转换 FCC 为 Ignition
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运行以下命令:
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```bash
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$ docker run -i --rm quay.io/coreos/fcct:v0.5.0 --pretty --strict < example.fcc > example.ign
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```
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### 17.2.4 挂载 ISO 启动虚拟机并安装
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> 虚拟机需要分配 3GB 以上内存,否则会无法启动。
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在虚拟机终端执行以下命令安装:
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```bash
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$ sudo coreos-installer install /dev/sda --ignition-file example.ign
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```
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安装之后重新启动即可使用。
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### 17.2.5 使用
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运行以下命令:
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```bash
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$ ssh core@虚拟机IP
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$ docker --version
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```
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### 17.2.6 参考链接
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* [官方文档](https://docs.fedoraproject.org/en-US/fedora-coreos/bare-metal/)
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