> For the complete documentation index, see [llms.txt](https://vernon2gb.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vernon2gb.gitbook.io/notes/linuxsystem/ubuntu/custom_kernel.md).

# custom\_kernel

## 源码

使用 `git clone` 下载 Linux Kernel 源码，使用 `git am` 打上相关的 patch。

## 编译

```bash
## enter linux kernel source code root dir
## change the EXTRAVERSION in the Makefile to something you'll recognize later.

## configure
$ cp /boot/config-`uname -r`* .config
$ make oldconfig
$ make menuconfig
## compile
$ make bzImage
$ make modules
```

## 安装

```bash
## (opts) install by make
$ sudo make modules_install
$ sudo make install
## (opts) install by deb
$ make bindeb-pkg
$ sudo dpkg -i *.deb

$ sudo reboot
```

## Cleaning up

```bash
$ sudo su - root

$ rm -f /boot/config-*test* /boot/initramfs-*test* /boot/vmlinuz-*test* /boot/System.map-*test*
$ rm -rf /lib/modules/*test*
$ update-grub

$ reboot
```

## tips

将 BIOS Secure Boot 功能进行关闭，方便进行内核功能验证