No network after the update my desktop network manager gives me no available connections

English Network/Internet
1

on my desktop pc running leap 15.6 with kde.
after an update with working network, network doesn’t works anymore
after two reboot
I click on network manager icon in the system tray and I see a blank popup with “no available connections”.
I tried to change with yast>network settings>global options>network setup method> from network manager to network services disabled and to network manager back again but the result was a popup wit “error no network running”
checked the network cable with this laptop and works
I have also a WiFi USB dongle that works but no network showed.
how can I have my desktop network working again?

2

I booted with kernel 6.4.0-150600.23.47-default istead of .50.1 and network works

3

Hiya. Try to run those commands in terminal on both kernels to check if they match or there’s errors:

nmcli connection
nmcli device

They’ll list NetworkManager connections and physical devices alongside their status.

4

manythanks, it now works with kernel 6.4.0-150600.23.50.1-default, I suppose I updated and the system booted with kernel-default-base, I was trying to update but system doesn’t allow me to update at the same version of kernel-default-base and kernel-default, so I think it was a mess, googling it seems I can uninstall kernel-default-base, is it true?

5

I guess you can uninstall it. At least I don’t have it installed on OpenSUSE Tumbleweed and my system works just fine. kernel-default-base mostly contains bunch of kernel modules (drivers) but it modifies some files in /boot directory. So by removing it you might end up with system that won’t boot if you’re not careful enough. If you really want to uninstall kernel-default-base then make sure to reinstall kernel-default using sudo zypper in -f kernel-default afterwards just as a safety measure. Pay close attention to what is going to get uninstalled alongside kernel-default-base because it might uninstall other system packages. You can post list of packages here so I can go through it and check if it’s OK or not.

6

Just like kernel-default. kernel-default-base is stripped down kernel intended for something like VM where you do not really need all hardware drivers to name a few.

7

Ooooh. That might explain it. So probably it was missing appropriate network drivers. I didn’t noticed that in package’s description and list of provided files. I thought kernel-default-base was extra modules for kernel-default, not a flavor of kernel. Thanks.

8

Actually, historically the extra modules were in the kernel-default and the kernel-default-base was mandatory (its description still reads “modules needed in all installations”). I am not sure when it was changed, but currently the kernel-default is self contained.

Became curious … it was really long ago:

# In SLE11, kernel-$flavor complemented kernel-$flavor-base. With SLE12,
# kernel-$flavor itself contains all the needed files and kernel-$flavor-base
# is a subset that can replace kernel-$flavor in some scenarios.
9

maaaanythanks, it worked, I removed kernel-default-base and yast automatically reinstalled kernel-default, system booted and everything works now

1 Like
10

Probably it got changed some time down the line because I installed Tumbleweed in January last year and I only had kernel-default package if I recall correctly.

11

SLE 12 was released 27 Oct 2014.