RockyLinux/almalinux设置 dnf / yum 国内镜像

# 设置镜像变量
MIRROR=mirrors.aliyun.com/rockylinux
# 执行替换
sudo sed -i.bak \
-e "s|^mirrorlist=|#mirrorlist=|" \
-e "s|^#baseurl=|baseurl=|" \
-e "s|dl.rockylinux.org/\$contentdir|$MIRROR|" \
/etc/yum.repos.d/Rocky-*.repo

# 生成缓存
sudo dnf makecache

sed -e 's|^mirrorlist=|#mirrorlist=|g' \
      -e 's|^# baseurl=https://repo.almalinux.org|baseurl=https://mirrors.aliyun.com|g' \
      -i.bak \
      /etc/yum.repos.d/almalinux*.repo

# 生成缓存
dnf makecache