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saskwatchOffline
Post subject: Invalid notice with 2.6.37 kernel  PostPosted: 09.01.2011, 02:39



Joined: 2011-01-09
Posts: 2
Location: Regina, Canada
Status: Offline
Confused
When updating to the latest kernel 2.6.37-0.slh.1-aptosid-amd64
I got a notice that certain firmware appeared to be missing
and that I should enable 'contrib' and 'non-free' for my
Debian repositories to install the firmware:
iwlagn: iwlwifi-130-5.ucode, iwlwifi-100-5.ucode
The problem is that the 'contrib' and 'non-free' are enabled
in my /etc/apt/sources.list.d/debian.list file. Synaptic also
shows 'iwlagn' installed as 'firmare-iwlwifi'but neither of
those .ucode files are listed.
The "problem" is that the wireless network card appears to be
working fine. My laptop is an Acer Aspire 1410-2817 dual core.
For the wireless card 'lspci -v' reports:

02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN
Flags: bus master, fast devsel, latency 0, IRQ 42
Memory at 92500000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [e0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 00-1e-64-ff-ff-0f-6d-e2
Kernel driver in use: iwlagn

I'm assuming the notice I got on the kernel install is an
error. Am I correct?
 
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slhOffline
Post subject: RE: Invalid notice with 2.6.37 kernel  PostPosted: 09.01.2011, 03:21



Joined: 2010-08-25
Posts: 749

Status: Offline
It's not misleading, but it might not apply to your particular hardware. iwlagn covers a large range of Intel wlan chipset series, starting at iwl4965, the iwl5xxx series, the iwl6xxx series and the newer bluetooth/ wlan combo device series (1xx and 1xxx). Starting with kernel 2.6.37, new support for the 1xx series has been added, which requires the firmware images you mentioned.

All detection methods, like the kernel packaging's own one you observed don't (and can't~) have insight in which particular device you're using, they just observe that you have the "iwlagn" module in use and that not all of the firmware images it might request (for the various series it supports) can be found. The kernel's debconf notice is also explicit about this ("This system is currently running Linux ${runningversion} and you are installing Linux ${version}. In the new version some of the drivers used on this system may require additional firmware files:").

This warning is valid for iwlagn, even important for the -indistinguishable- 1[03]0 series of WiFi/BT combo devices, and is not a bug. Moving, as this does not constitute an upgrade warning and doesn't break anything that was already supported by previous kernels, but rather adds support for new devices.
 
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