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geki

Member

Registered: 2019-02-04

Posts: 106  

daedalus: iwlwifi firmware missing for linux-image-6.12.38+deb12-amd64

Hi all,

I upgraded the kernel to 6.12.38+deb12-amd64, bootet into it and the wi-fi was offline. Then, I bootet the old kernel 6.1 again and wi-fi was online. dmesg log shows that the firmware is not found. Any ideas how to solve this issue?

# head -n1 /var/log/dmesg.0 
[    0.000000] Linux version 6.12.38+deb12-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.12.38-1~bpo12+1 (2025-07-27)

# grep QuZ-a0-hr-b0 /var/log/dmesg.0 
[    2.351570] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-77.ucode (-2)
[    2.351583] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-77.ucode (-2)
[    2.351592] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-77.ucode (-2)
[    2.351593] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-77.ucode failed with error -2
[    2.351617] iwlwifi 0000:00:14.3: iwlwifi-QuZ-a0-hr-b0-77 is required

# dpkg -L firmware-iwlwifi | grep QuZ-a0-hr-b0
/lib/firmware/iwlwifi-QuZ-a0-hr-b0-50.ucode
/lib/firmware/iwlwifi-QuZ-a0-hr-b0-59.ucode
/lib/firmware/iwlwifi-QuZ-a0-hr-b0-72.ucode

# lspci | grep Wi-Fi
00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201 (rev 20)

RedGreen925

Member

Registered: 2024-12-07

Posts: 151  

Re: daedalus: iwlwifi firmware missing for linux-image-6.12.38+deb12-amd64

I upgraded the kernel to 6.12.38+deb12-amd64, bootet into it and the wi-fi was offline. Then, I bootet the old kernel 6.1 again and wi-fi was online.

Since you are using a package that is one generation release on from the default you are using, I would check to make sure you have the iwlwifi packages from the same source as it installed too. The daedalus-backports should have the firmware-iwlwifi need to match that kernel looking at the Debian packages that should be there in it.

https://packages.debian.org/search?keyw … ection=all

At least that is what it would give me if needed running the same kernel on excalibur.

zeus@9600k:~$ apt policy firmware-iwlwifi
firmware-iwlwifi:
  Installed: (none)
  Candidate: 20250410-2
  Version table:
     20250410-2 950
        950 http://de.deb.devuan.org/merged excalibur/non-free-firmware amd64 P>
zeus@9600k:~$ uname -r
6.12.38+deb13-amd64

Edit: and I would make certain you have backup network connection that works before installing the wifi package and risking having none if only method of connecting fails with that package too.

Last edited by RedGreen925 (2025-08-12 22:15:25)

fsmithred

Administrator

Registered: 2016-11-25

Posts: 2,692  

Re: daedalus: iwlwifi firmware missing for linux-image-6.12.38+deb12-amd64

I don't see 'bpo' in the kernel version. It looks like it's the excalibur kernel. Please post your /etc/apt/sources.list and any other sources apt is using.

I just booted excalibur with that kernel and firmware-iwlwifi is working correctly. (version 20250410-2)

geki

Member

Registered: 2019-02-04

Posts: 106  

Re: daedalus: iwlwifi firmware missing for linux-image-6.12.38+deb12-amd64

I am on it cache looks like this:

$ apt-cache policy firmware-iwlwifi
firmware-iwlwifi:
  Installiert:           20230210-5
  Installationskandidat: 20230210-5
  Versionstabelle:
     20250410-2~bpo12+1 100
        100 https://ftp.fau.de/devuan/merged daedalus-backports/non-free-firmware amd64 Packages
        100 https://ftp.fau.de/devuan/merged daedalus-backports/non-free-firmware i386 Packages
 *** 20230210-5 500
        500 https://ftp.fau.de/devuan/merged daedalus/non-free-firmware amd64 Packages
        500 https://ftp.fau.de/devuan/merged daedalus/non-free-firmware i386 Packages
        100 /var/lib/dpkg/status

Downloaded both firmware debs. I guess that helps already switching kernels.