If your internet is working, do nothing. It’s a harmless log artifact.
The issue was largely recognized by the community, and in later kernel versions (5.15+), the error message was changed from an urgent warning to a lower log level, or the dependency was removed, making the message disappear.
If you want to get rid of the red lines in your logs, you can disable the driver's attempt to load initialization (INI) debug files. Option 1: Silence the error via Modprobe (Recommended)
Uncheck the box next to .
The system kernel error log iwlwifi firmware failed to load iwl-debug-yoyo.bin (-2) often alarms Linux users checking their system health via dmesg or journalctl . The bright red lines look catastrophic, but your Wi-Fi usually works perfectly fine.
The iwlwifi module is the official open-source Linux kernel driver for Intel’s wireless adapters. When your system boots, the kernel attempts to load specific microcode (firmware files) required by your Wi-Fi hardware.
iwlwifi: firmware failed to load iwl-debug-yoyo.bin exclusive ownership failed iwlwifi firmware failed to load iwldebugyoyobin exclusive
You updated your kernel, but your linux-firmware package is outdated.
The iwlwifi module is the official open-source Linux driver developed by Intel for their wireless cards. When your system boots, the kernel initialises this driver and instructs it to grab necessary binary blobs (firmware) from your file system (specifically from /lib/firmware/ ).
sudo update-initramfs -u sudo reboot
iwldebugyoyobin
sudo apt-get update && sudo apt-get install linux-firmware
Look for lines stating possible missing firmware /lib/firmware/iwlwifi-xxxx.ucode . Step 2: Install the Missing Firmware Pack If your internet is working, do nothing