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Old 05-10-2007, 03:12 PM   #1
Senior Member
Registered: Dec 2005
Location: Finland
Distribution: Slackware, CentOS, RHEL, OpenBSD
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ipw3945 worries in slack

Just installed Slackware-current and installed the ipw3945 packages from Alien's repository. I build them with the Slackbuild.

Now when I try to load the module I get following:
root@Chimaera:/home/zmyrgel# modprobe ipw3945
WARNING: Error inserting firmware_class (/lib/modules/ Invalid module format
Any idea what's causing that and how to get my wireless working?
Old 05-10-2007, 04:21 PM   #2
Registered: Aug 2003
Location: Akron, OH
Distribution: SuSE 8.2, Slackware current, OpenBSD 3.5-3.8, Fedora Core 2
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You have to make sure that the correct version of the firmware is installed for the driver module you are trying to load into the kernel. Did the packages you installed from Alien's repository also install the firmware, too? And, if so, did it put it in the correct spot (/lib/firmware, I believe)?
Old 05-10-2007, 04:30 PM   #3
Registered: Mar 2006
Posts: 381

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Sorry to shout. :-)

By default, the kernel in Slackware supports SMP. With as common as
multicore CPUs and SMP boards have become, this seemed like the
obvious choice. The kernels are probably better for single CPU
machines, too, if they will run them.

If you have to use one of the non SMP kernels (huge.s or generic.s),
then you will need to reconfigure your kernel sources to build any
additional kernel modules. In order to compile outside kernel
modules and such, you will need to build your kernel once with a
non-SMP .config. The process is much the same:

cat config-generic- > /usr/src/linux-

make oldconfig
make bzImage
make clean
rm .version

At this point if you are running huge.s or generic.s, you should have
no problems building kernel modules.

Have fun! :-)
config-generic- is in /boot
Old 05-11-2007, 01:05 AM   #4
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Registered: Dec 2005
Location: Finland
Distribution: Slackware, CentOS, RHEL, OpenBSD
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I used the SMP-kernel so it basicly should have worked straight away but I got it working after I made a custom kernel... patched with Beyond-sources.

And now to get my hands dirty configuring the rest of the system with the aid of the internet


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