降级-Ubuntu-20-的kernel版本到5.4, 关联 linux-image, linux-headers, grub

March 23, 2022

• 参考
  • How to downgrade the kernel on Ubuntu 20.04 to the 5.4 (LTS) version
  • How to Change the Default Ubuntu Kernel

  • [How to change default kernel in Ubuntu 22.04

    20.04 LTS](https://www.how2shout.com/linux/how-to-change-default-kernel-in-ubuntu-22-04-20-04-lts/)

  • Check and Update Ubuntu Kernel Version on Ubuntu 20.04

1. 安装 5.4 kernel

   1	sudo apt install linux-image-5.4.0-104-generic linux-headers-5.4.0-104-generic

2. 检查grub 菜单项

   1	sudo grep 'menuentry \|submenu ' /boot/grub/grub.cfg | cut -f2 -d "'"

3. 根据grub菜单结构，修改 /etc/default/grub 的启动项
   GRUB_DEFAULT=0 改为

   1	GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 5.4.0-104-generic"

4. 更新grub并重启

   1 2	sudo update-grub sudo reboot

5. 重启后，检查是否是 5.4 kernel ： uname -r