New 15.4 Kernel would not boot, Post removal of retracted kernel lost Internet

English Install/Boot/Login
1

Just like others, after updating the new kernel would not boot. Booted with older kernel and uninstalled the 3 new kernel files shown as retracted. Was automatically given an older one 5.14.21-150400.24.46-kvmsmall.

This kernel booted alright BUT the internet connection Network Manager has stopped working. Shifting to Wicked also does not work!! Without the internet working I cannot do anything to access the repos with this installation. I have Windows 10 as well as Leap 15.3 on the same desktop which are working OK.

I am posting this from Leap 15.3. What could be the possible reason? How do I get a working kernel with internet back??

PrakashC

2

Why kvmsmall flavor? It is intended to be used by kernel developers and omits a lot of features, in particular “Only the network and graphics drivers for devices that qemu emulates are enabled”.

3

I did not choose or opt for it! It was installed automatically! How can I get back a proper kernel? I can work the internet through 15.3 to down load some file. Which would be the right kernel, how to get to it and install it? I can transfer the file to my working partition accessible from both 15.3 and 15.4.

Thanks

PrakashC

4

I just remember that I still have the initial installation media on pen drive. How can I use it to get the initial kernel back and then upgrade it to the present “working” kernel? That is without going through a fresh installation!!

PrakashC

5

Find package kernel-default on it and install using rpm (or zypper if you like) command

rpm --install /path/to/package/file

The file name will be kernel-default-version-release.x86_64.rpm. I do not remember exact version.

6

Thanks. will try it and report.

7

Thanks again. Yes it worked. Now working from 15.4. Next step is to update.

Before I start that wish to get some advice:

  1. Should I uninstall the earlier kernels ie kvmsmall before going in for update? Or will the update do it auto?
  2. Has the glitch in the non-booting kernel been fixed? if so I could just update, else I need to update to the earlier version.
  3. How does one update to a specific version if that is possible?

PrakashC

8

Further it appears that different versions of the software (my present focus kernel) can be changed via Yast->Software Management by selecting specific version required. Am I right?

9

You most certainly do not need or want kvmsmall kernel on real hardware.

10

Thanks. Will do it through Yast->Software Management.

PrakashC

11

Uninstalled kernel 5.14.21-150400.24.46-kvmsmall. Kernal 5.14.21-150400.24.46.1 was also not connecting to internet so uninstalled it also. Present update offered offers this version but I am not updating till issues settle down.

Had installed kernel 5.14.21-150400.22.1 from original installation media. In addition installed kernel 5.14.21-150400.24.41.1 online which is working fine and using it as default.

Had also installed version 5.14.21-150400.24.49.3, but it does not boot!

Thanks for the help arvidjaar.

12

Well kernel version ----.24.55.3 update has now been released. Any idea if the problems with ----.24.49.3 have been cleared?

PrakashC

13

5.14.21-150400.24.55.3 is the solution for the problems with 5.14.21-150400.24.49.3…