Re: Various bugs with the new 5.7 kernel on Fedora 32

[Sreyan Chakravarty]

Okay guys how do I uninstall a kernel ?

sudo dnf remove kernel-5.7.10-201.fc32.x86_64

does absolutely nothing.

I can even boot from the removed kernel after the removal.

How do I remove a kernel for good ?

I want it gone from the GRUB boot menu too.

On 7/26/20 9:17 PM, Sreyan Chakravarty wrote:
> I just upgraded to the new 5.7 kernel and it has a lot of bugs.
>
> It can't even initialize my swap file:
>
> Jul 26 21:01:12 localhost.HPNotebook systemd[1]: fedora.swap.swap: 
> Failed with result 'exit-code'.
>   6 Jul 26 21:01:12 localhost.HPNotebook systemd[1]: Failed to 
> activate swap /fedora.swap.
>   7 Jul 26 21:01:12 localhost.HPNotebook systemd[1]: Dependency failed 
> for Swap.
>   8 Jul 26 21:01:12 localhost.HPNotebook systemd[1]: swap.target: Job 
> swap.target/start failed with result 'dependency'.
>   9 Jul 26 21:01:12 localhost.HPNotebook swapon[994]: swapon: 
> /fedora.swap: swapon failed: Invalid argument
>  10 Jul 26 21:01:26 localhost.HPNotebook swapon[1084]: swapon: 
> /fedora.swap: swapon failed: Invalid argument
>  11 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: fedora.swap.swap: 
> Failed with result 'exit-code'.
>  12 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Failed to 
> activate swap /fedora.swap.
>  13 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Dependency failed 
> for Swap.
>  14 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: swap.target: Job 
> swap.target/start failed with result 'dependency'.
>  15 Jul 26 21:01:26 localhost.HPNotebook swapon[1093]: swapon: 
> /fedora.swap: swapon failed: Invalid argument
>  16 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: fedora.swap.swap: 
> Failed with result 'exit-code'.
>  17 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Failed to 
> activate swap /fedora.swap.
>  18 Jul 26 21:01:26 localhost.HPNotebook systemd[1]: Dependency failed 
> for Swap.
>
> This doesn't happen in 5.6
>
> There are a slew of other problems.
>
> A log file can be found here:
>
> https://pastebin.com/iL9Yd5cj
>
> I really am too tired to file a bug since nothing really gets fixed.
>
> What I want to do is uninstall the 5.7 kernel.
>
> If I uninstall the kernel will running an older kernel cause problems 
> during system upgrade ?