Network cards not detected by networkManager after system uodate

Flotec09 · 2025-10-14 19:15:34

I just updated my system, rebooted and suddenly, both my ethernet and wifi card vanished from network manager. It just doesn't detect them anymore. Lspci shows both the ethernet and wifi card. I also tried switching from the zen to the standard kernel and also, no difference.

seth · 2025-10-14 19:36:53

Please don't paraphrase, https://bbs.archlinux.org/viewtopic.php?id=57855
Most likely problem:

uname -a
pacman -Qs linux

(installed and booting kernel fall apart because you forgot to mount the /boot partition or mounted a bogus partition into /boot before updating)

cat /proc/cmdline

will help to tell the latter apart.
otherwise

lspci -k
sudo journalctl -b | curl -F 'file=@-' 0x0.st

loqs · 2025-10-14 19:37:17

Does `uname -a` match the version from `pacman -Q linux`/`pacman -Q linux-zen`? Does `lspci -k` contain a "Kernel driver in use" entry for the ethernet and wifi as well as a "Kernel modules" entry?
Edit:
Beaten by seth.

Last edited by loqs (2025-10-14 19:37:41)

Flotec09 · 2025-10-15 04:33:35

Thank you. And sorry for the Bad formatting. As there is no network connection on my PC, I had to type this on my phone.

But anyways, here are the outputs of the two commands:

[florian@FlotecPC ~]$ uname -a
Linux FlotecPC 6.16.4-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Thu, 28 Aug 2025 19:49:40 +0000 x86_64 GNU/Linux
[florian@FlotecPC ~]$ pacman -Qs linux-zen
local/linux-zen 6.17.2.zen1-1
    The Linux ZEN kernel and modules
local/linux-zen-headers 6.17.2.zen1-1
    Headers and scripts for building modules for the Linux ZEN kernel
[florian@FlotecPC ~]$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-linux-zen root=UUID=94e90a9c-cd0a-42dc-86bb-22f75c50034d rw loglevel=1 splash

And you were right. Installed kernel differs from booted one. I already had that suspicion before and tried reinstalling the kernel and its headers from the live ISO, but that hasn't changed anything.

And also I cannot explain to me how the Boot partition got unmounted. I did dozens of updates in the past and never had this issue.

seth · 2025-10-15 06:05:00

You can just redirect the output into files and copy them over, though itr and wrt your current situation: this will also affect vfat, so you currently cannot mount /boot either

before and tried reinstalling the kernel and its headers from the live ISO

otherwise boot the install iso, mount everything into place, arch-chroot into the system.

Then re-install the kernel package - you are booting from some dedicated partition.
Pay close attention to any errors you encounter and post them (should not be a problem from the install iso.

sudo pacman -S linux-zen |& tee /tmp/pacman.log
cat /tmp/pacman.log | curl -F 'file=@-' 0x0.st

Arch Linux

#1 2025-10-14 19:15:34

Network cards not detected by networkManager after system uodate

#2 2025-10-14 19:36:53

Re: Network cards not detected by networkManager after system uodate

#3 2025-10-14 19:37:17

Re: Network cards not detected by networkManager after system uodate

#4 2025-10-15 04:33:35

Re: Network cards not detected by networkManager after system uodate

#5 2025-10-15 06:05:00

Re: Network cards not detected by networkManager after system uodate

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