52 lines
1.1 KiB
Markdown
52 lines
1.1 KiB
Markdown
# Ubuntu 系统升级
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*不是升级软件包，而是升级整个系统。*
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## 1. 查看当前系统版本
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```bash
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lsb_release -a
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# Or
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cat /etc/issue
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```
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## 2. 从命令行升级
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先升级软件包
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```bash
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sudo apt update && sudo apt dist-upgrade
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```
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如果没有 update-manager-core 需要先安装
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```bash
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sudo apt install update-manager-core
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```
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如果希望从 LTS 升级到非 LTS 版本，还需要修改 /etc/update-manager/release-upgrades
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```ini
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# /etc/update-manager/release-upgrades
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# 将 Prompt=lts 修改为如下内容
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Prompt=normal
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```
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之后输入以下命令进行系统升级：
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```bash
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sudo do-release-upgrade
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```
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如果升级过程中出现了“Upgrade tool 404 Not Found [IP: 59.80.44.45 80]”字样错误，可以尝试修改 /etc/apt/sources.list 为国内（如清华）镜像。
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## 3. 关闭自动升级
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修改 /etc/apt/apt.conf.d/10periodic 文件中的 APT::Periodic::Update-Package-Lists 为零。
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```bash
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APT::Periodic::Update-Package-Lists "0";
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APT::Periodic::Download-Upgradeable-Packages "0";
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APT::Periodic::AutocleanInterval "0";
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```
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