118 lines
3.3 KiB
Bash
118 lines
3.3 KiB
Bash
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#!/bin/bash
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set -euo pipefail
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echo "=== 通用 Linux 初始化脚本 ==="
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# 确保为 root
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if [ "$EUID" -ne 0 ]; then
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echo "请以 root 用户运行此脚本。" >&2
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exit 1
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fi
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# 检测系统信息
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get_os_info() {
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if [ -f /etc/os-release ]; then
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. /etc/os-release
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DISTRO_ID=$ID
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DISTRO_NAME=$NAME
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DISTRO_VERSION=$VERSION_ID
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else
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echo "无法识别系统类型。" >&2
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exit 1
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fi
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}
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# 设置 DNS
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set_dns() {
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echo "设置 DNS..."
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rm -f /etc/resolv.conf
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cat > /etc/resolv.conf <<EOF
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nameserver 114.114.114.114
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nameserver 223.5.5.5
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EOF
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if command -v chattr &>/dev/null; then
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chattr +i /etc/resolv.conf || echo "警告: 无法锁定 resolv.conf"
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fi
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}
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# 设置时区和时间同步
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set_timezone_and_time() {
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echo "设置时区为 Asia/Shanghai..."
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timedatectl set-timezone Asia/Shanghai 2>/dev/null || ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
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echo "安装 ntpdate..."
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$INSTALL_CMD ntpdate -y
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echo "正在同步时间..."
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ntpdate ntp.aliyun.com || echo "时间同步失败，请检查网络连接"
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}
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# 设置清华源
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set_mirrors() {
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echo "更换软件源为清华镜像..."
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case "$DISTRO_ID" in
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debian|ubuntu|raspbian)
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CODENAME=$(lsb_release -cs 2>/dev/null || echo "stable")
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cat > /etc/apt/sources.list <<EOF
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deb https://mirrors.tuna.tsinghua.edu.cn/${DISTRO_ID}/ ${CODENAME} main contrib non-free non-free-firmware
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deb https://mirrors.tuna.tsinghua.edu.cn/${DISTRO_ID}/ ${CODENAME}-updates main contrib non-free non-free-firmware
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deb https://mirrors.tuna.tsinghua.edu.cn/${DISTRO_ID}/ ${CODENAME}-backports main contrib non-free non-free-firmware
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deb https://mirrors.tuna.tsinghua.edu.cn/${DISTRO_ID}-security ${CODENAME}-security main contrib non-free non-free-firmware
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EOF
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apt update -y
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;;
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centos|rhel|almalinux|rocky)
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if [ -f /etc/yum.repos.d/CentOS-Base.repo ]; then
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cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
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fi
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# shellcheck disable=SC2046
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curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.tuna.tsinghua.edu.cn/help/centos/?date=$(date +%Y%m%d)
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yum clean all && yum makecache
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;;
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fedora)
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dnf install -y dnf-plugins-core
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sed -i 's|^metalink=|#metalink=|g' /etc/yum.repos.d/fedora*.repo
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sed -i 's|^#baseurl=http.*|baseurl=https://mirrors.tuna.tsinghua.edu.cn/fedora/linux/releases/$releasever/Everything/$basearch/os/|g' /etc/yum.repos.d/fedora.repo
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dnf makecache
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;;
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*)
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echo "不支持的系统: $DISTRO_NAME"
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exit 1
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;;
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esac
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}
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# 主程序
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get_os_info
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echo "检测到系统: $DISTRO_NAME $DISTRO_VERSION"
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# 判断使用哪个包管理器
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if command -v apt &>/dev/null; then
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INSTALL_CMD="apt install -y"
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apt update -y
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elif command -v dnf &>/dev/null; then
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INSTALL_CMD="dnf install -y"
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dnf makecache
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elif command -v yum &>/dev/null; then
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INSTALL_CMD="yum install -y"
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yum makecache
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else
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echo "不支持的包管理器。" >&2
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exit 1
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fi
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# 安装通用工具
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$INSTALL_CMD curl wget lsb-release || true
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# 执行配置步骤
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set_mirrors
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set_dns
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set_timezone_and_time
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echo "=== 初始化完成！系统已优化 ==="
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