Ubuntu 镜像使用帮助

本镜像仅包含 32/64 位 x86 架构处理器的软件包，在 ARM(arm64, armhf)、PowerPC(ppc64el)、RISC-V(riscv64) 和 S390x 等架构的设备上（对应官方源为 ports.ubuntu.com）请使用 ubuntu-ports 镜像。
PS: 如果仅使用替换命令，则不影响

备份镜像

sudo /etc/apt/sources.list /etc/apt/sources.list.bak

替换镜像源

sudo sed -i "s/cn.archive.ubuntu.com/mirrors.byrio.org/g" /etc/apt/sources.list
sed -i "s/archive.ubuntu.com/mirrors.byrio.org/g" /etc/apt/sources.list
sed -i "s/security.ubuntu.com/mirrors.byrio.org/g" /etc/apt/sources.list

如果系统时间正确建议启用 https

sudo sed -i "s/http\:/https\:/g" /etc/apt/sources.list

更新包管理器并完成

sudo apt update

镜像情况

  1. IPv4解析校园网内网地址，IPv6解析到校外可访问的校园网v6地址。
  2. 镜像地址 https://mirrors.byrio.org/ubuntu/
  3. 如果你需要安装镜像，请访问 ubuntu-releases
  4. 如果你需要衍生版镜像，请访问 ubuntu-cdimage

  5. 镜像地址示例 for x86/x86_64 Ubuntu 20.04 LTS

     # 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
 deb https://mirrors.byrio.org/ubuntu/ focal main restricted universe multiverse
 # deb-src https://mirrors.byrio.org/ubuntu/ focal main restricted universe multiverse
 deb https://mirrors.byrio.org/ubuntu/ focal-updates main restricted universe multiverse
 # deb-src https://mirrors.byrio.org/ubuntu/ focal-updates main restricted universe multiverse
 deb https://mirrors.byrio.org/ubuntu/ focal-backports main restricted universe multiverse
 # deb-src https://mirrors.byrio.org/ubuntu/ focal-backports main restricted universe multiverse
 deb https://mirrors.byrio.org/ubuntu/ focal-security main restricted universe multiverse
 # deb-src https://mirrors.byrio.org/ubuntu/ focal-security main restricted universe multiverse

 # 预发布软件源，不建议启用
 # deb https://mirrors.byrio.org/ubuntu/ focal-proposed main restricted universe multiverse
 # deb-src https://mirrors.byrio.org/ubuntu/ focal-proposed main restricted universe multiverse

常见问题

如果您无法访问，请尝试关闭代理或设置 mirrors.byrio.org 为直连域名。

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