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First of all, I really want to apologize for any rare questions about Linux and Ubuntu. The thing is I'm practically new to GNU/Linux and the Linux kernel itself. I know pretty much the basis of it. But let's head into the problem.

I've recently updgraded from linux-kernel-5.8.0-55 to linux-kernel-5.8.0-63 because Ubuntu itself showed me that I could upgrade it (using the upgrade GUI, not the CLI).

Everything went fine until I booted into the new kernel version and figured out that I didn't had network connection anymore.

Mi past with this problem and what I've done to solve it:

The same happened before and I just installed kernel 5.8.0-55 using a USB cable connected to my cellphone. I downloaded it from my android device and moved it into my PC.

The question I made here was written with the intention to:

1- Solve this issue.

2- Have a better understanding of what is happening with my PC, how Linux works under the hood and understand what have I done wrong.

MORE INFO

I figured out that somehow my network device's drivers are not even being recognised by the distro. How can I solve this? Why is happening every time?

Also, my NVIDIA drivers disappeared too.

What I've tried:

sudo apt-get install --reinstall linux-image-extra-`uname -r`

Thinking that would reinstall my previous installation. What happened after:

Could not find any package with the regular expression «linux-image-extra-5.8.0-55-generic»

I also searched the web, switched to my other kernel 5.8.0-59 and have the same problem there.

VERSION Linux 5.8.0-55-generic #62~20.04.1-Ubuntu

idunno
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1 Answers1

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I fixed it! But I still don't understand what happens when upgrading my kernel :P.

What I did was:

1- Uninstalled NVIDIA drivers (to fix nvidia drivers problem) using:

sudo apt-get remove --purge nvidia-* -y

2- Executed sudo ubuntu-drivers autoinstall.

3- Rebooted

And everything got solved! I now have internet connection (because of driver rtl8188eu wich comes as default on ubuntu 20.04).

But I have another problem now: I don't understand what caused the error, how to prevent it and what is happening under the hood.

Any comment would help or anything pointing towards wikis and stuff.

I really really appreciate the time everyone took to answer to my questions.

idunno
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