102 lines
3.6 KiB
Bash
Executable File
102 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
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# prerm - 卸载前卸载内核模块
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set -e
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# 当脚本由 dpkg 触发时，$DPKG_MAIN_TSN_PACKAGE 通常可用
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PACKAGE_NAME="${DPKG_MAIN_TSN_PACKAGE}"
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if [ -z "$PACKAGE_NAME" ]; then
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SCRIPT_NAME=$(basename "$0")
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PACKAGE_NAME=$(echo "$SCRIPT_NAME" | sed 's/\.postinst$//' | sed 's/\.prerm$//')
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fi
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# 从 dpkg 数据库获取版本
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if [ -n "$PACKAGE_NAME" ]; then
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PACKAGE_VERSION=$(dpkg-query -W -f='${Version}' "$PACKAGE_NAME" 2>/dev/null)
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# 去掉 Debian 修订号（-1, -2, -ubuntu1 等）
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PACKAGE_VERSION=$(echo "$PACKAGE_VERSION" | sed 's/-.*$//')
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fi
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DKMS_SRC_DIR="/usr/src/${PACKAGE_NAME}-${PACKAGE_VERSION}"
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MAKEFILE_ABS_PATH="${DKMS_SRC_DIR}/Makefile"
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MODULE_NAME=""
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# 【核心修复】：使用绝对路径去解析真正的 Makefile 提取驱动名
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if [ -f "${MAKEFILE_ABS_PATH}" ]; then
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MODULE_NAME=$(sed -n -E 's/^DRIVER_NAME[[:space:]]*:?=[[:space:]]*([^[:space:]]+).*/\1/p' "${MAKEFILE_ABS_PATH}" | head -1 | sed 's/\.ko$//')
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fi
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# 如果从 Makefile 没解析出来，降级使用包名作为模块名
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if [ -z "$MODULE_NAME" ]; then
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MODULE_NAME="${PACKAGE_NAME}"
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fi
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case "$1" in
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remove)
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echo "正在卸载 ${PACKAGE_NAME}..."
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# 1. 卸载内核模块
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echo "检查内核模块状态: ${MODULE_NAME}"
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if lsmod | grep -q "^${MODULE_NAME}"; then
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echo "正在从当前内核中卸载模块 ${MODULE_NAME}..."
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if rmmod "${MODULE_NAME}" 2>/dev/null; then
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echo "模块 ${MODULE_NAME} 卸载成功"
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else
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echo "警告: 模块 ${MODULE_NAME} 卸载失败，可能有其他进程正在使用它" >&2
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fi
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else
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echo "模块 ${MODULE_NAME} 当前未加载"
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fi
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# 2. 从 DKMS 移除模块 (修复：扩大 grep 范围以兼容 added/installed 各种状态)
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if dkms status | grep -q "${PACKAGE_NAME}/${PACKAGE_VERSION}"; then
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echo "从 DKMS 移除 ${PACKAGE_NAME} ${PACKAGE_VERSION}..."
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dkms remove -m "${PACKAGE_NAME}" -v "${PACKAGE_VERSION}" --all 2>/dev/null || true
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fi
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echo "正在强行清理 /lib/modules/ 下的所有 ${MODULE_NAME} 残留文件..."
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find /lib/modules/ -name "${MODULE_NAME}.ko*" -delete 2>/dev/null || true
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# 3. 更新模块依赖
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echo "更新模块依赖..."
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depmod -a
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# 4. 删除开机自动加载配置
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if [ -f "/etc/modules-load.d/${PACKAGE_NAME}.conf" ]; then
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echo "删除开机自动加载配置..."
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rm -f "/etc/modules-load.d/${PACKAGE_NAME}.conf"
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fi
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echo "${PACKAGE_NAME} 卸载完成"
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;;
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upgrade)
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echo "软件包升级中，清理旧版本..."
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# 1. 升级时卸载旧版本的内核运行模块
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if lsmod | grep -q "^${MODULE_NAME}"; then
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echo "正在卸载旧版本内核运行模块..."
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rmmod "${MODULE_NAME}" 2>/dev/null || true
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fi
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# 2. 从 DKMS 移除旧版本
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if dkms status | grep -q "${PACKAGE_NAME}/${PACKAGE_VERSION}"; then
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echo "从 DKMS 移除旧版本模块记录..."
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dkms remove -m "${PACKAGE_NAME}" -v "${PACKAGE_VERSION}" --all || true
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fi
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# 3. 清理旧的内核模块文件 (原逻辑保留，提供兜底支持)
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rm -f /lib/modules/*/kernel/drivers/misc/${MODULE_NAME}.ko 2>/dev/null || true
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depmod -a
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;;
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failed-upgrade)
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echo "升级失败，保留原有配置"
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;;
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*)
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echo "prerm 被调用时参数: $1" >&2
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;;
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esac
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exit 0 |