A: Check if you have a custom kernel or a patched iwlwifi driver. Use:
Find your kernel’s firmware directory:
sudo pacman -Syu linux-firmware sudo reboot After reboot, check if the error persists: firmware failed to load iwldebugyoyobin free
sudo apt update sudo apt install linux-firmware sudo apt upgrade sudo reboot
Create a modprobe configuration file:
dmesg | grep "yoyo" You should see no “failed to load” message. If you don’t want to add the debug file and the error is purely cosmetic, you can suppress it by modifying the kernel’s log level for firmware failures.
cat /sys/module/iwlwifi/parameters/debug It should return 0x0 . If you see the exact string iwldebugyoyobin free in your logs (not just iwl-debug-yoyo.bin ), you may have a malicious or corrupt script. Search for it: A: Check if you have a custom kernel
Now, go ahead and apply the fix that suits your skill level. Your logs will thank you. Article last updated: 2025. Verified on Ubuntu 24.04, Fedora 39, Arch Linux (6.6+ kernels).