```bash
uname -r
sudo apt update && sudo apt upgrade
sudo apt install wget


wget https://raw.githubusercontent.com/pimlie/ubuntu-mainline-kernel.sh/master/ubuntu-mainline-kernel.sh
chmod +x ubuntu-mainline-kernel.sh
sudo mv ubuntu-mainline-kernel.sh /usr/local/bin/
ubuntu-mainline-kernel.sh -c
ubuntu-mainline-kernel.sh -r

```

![alt text](https://jimyag.com/posts/ubuntu-update-kernel-installation-grub-setup/files/image.png)

```bash
# 安装最新
sudo ubuntu-mainline-kernel.sh -i

# 安装特定版本
sudo ubuntu-mainline-kernel.sh -i v6.2.0
sudo ubuntu-mainline-kernel.sh -l

sudo reboot

```

更改/设置默认内核版本

```bash
sudo vim /etc/default/grub

# 添加一下两行
GRUB_SAVEDEFAULT=true
GRUB_DEFAULT=saved


sudo update-grub
sudo reboot
```

在启动时按 `esc` 进入 `grub` ，选择 `Advanced options for Ubuntu`

![alt text](https://jimyag.com/posts/ubuntu-update-kernel-installation-grub-setup/files/grub.png)

```bash
sudo ubuntu-mainline-kernel.sh -u
sudo reboot
```

## 参考

- <https://linux.how2shout.com/linux-kernel-6-2-features-in-ubuntu-22-04-20-04/>