uname -r查看内核版本
ubuntu版本：修改安装源
vim /etc/apt/sources.list
deb http://archive.ubuntu.com/ubuntu questing main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu questing main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu questing-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu questing-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu questing-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu questing-security main restricted universe multiverse
退出更新：
sudo apt update
安装编译依赖包：
sudo apt install build-essential flex bison libncurses-dev libssl-dev bc libelf-dev dwarves zstd -y
下载安装源代码
sudo apt install linux-source linux-headers-$(uname -r)
cp /usr/source/***.tar /home/zhuwei/
tar -xf ***tar.
cd /home/zhuwei/linux***
cp /boot/config-$(uname -r) .config
更新配置，加载新增驱动选项.默认加载原有系统的config
make olddefconfig
确认RDMA子系统编译为模块M（关键）
make menuconfig
勾选所有M选项
Device Drivers → InfiniBand support
cd /home/zhuwei/rdma/linux-source-6.17.0
生成自动头文件、编译脚本、模块符号表
make prepare
make scripts
make modules_prepare
【关键】编译全部内核模块，生成顶层 Module.symvers
make modules -j$(nproc)
make -j$(nproc) M=drivers/infiniband modules
安装新编译RDMA模块到系统内核目录
sudo make M=drivers/infiniband modules_install
更新模块依赖索引
sudo depmod -a