When I type apt-cache search linux-generic it gives me list of 5.13x only. Does it mean that I can't downgrade to something like 5.4? By the way on some linux distro I've seen a GUI utility to deal with kernel versions (Manjaro probably), as I got it there is no such on Ubuntu, at least currently.
1 Answer
- You can pick all available kernels at the grub prompt.
- you can set grub to use a specific kernel if available
- you can install more kernels.
The concept of "downgrading" does not apply here (you do not replace a kernel with another; you add kernels or delete kernels from your system (when you logged into the kernel you want to use)).
The tool you mentioned is probably UKUU (Ubuntu Kernel Update Utility) but is no longer FREE so got removed. Have a look at mainline (that is a new version of UKUU):
Features
- Fetches the list of available kernels from the Ubuntu Mainline PPA
- Optionally watches and displays notifications when a new kernel update is available
- Downloads and installs packages automatically
- Display available and installed kernels conveniently
- Install/Uninstall kernels from gui
- For each kernel, the related packages (headers & modules) are installed or uninstalled at the same time
Installation using PPA
sudo add-apt-repository ppa:cappelikan/ppa
sudo apt update
sudo apt install mainline