Gentoo Archives: gentoo-user

From: Fei Liu <feiliu4@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] problem with kernel and net-wireless/linux-wlan-ng
Date: Thu, 28 Feb 2008 19:05:24
Message-Id: 47C70598.9060201@gmail.com
1 Fei Liu wrote:
2 > Hello, Group,
3 >
4 > I am trying to install and use NetGear MA111 usb wireless network. I
5 > followed the instructions here:
6 > http://gentoo-wiki.com/HOWTO_Prism2_USB_on_Gentoo
7 > <http://gentoo-wiki.com/HOWTO_Prism2_USB_on_Gentoo>
8 >
9 > But I get errors when I try to install the kernel module.
10 > linux-wlan-ng-0.2.8 # modprobe prism2_usb prism2_doreset=1
11 > WARNING: Error inserting p80211 (/lib/modules/2.6.19-gentoo-r5/linux-
12 > wlan-ng/p80211.ko): Invalid module format
13 > FATAL: Error inserting prism2_usb (/lib/modules/2.6.19-gentoo-r5/linux-
14 > wlan-ng/prism2_usb.ko): Invalid module format
15 >
16 > My system is built with gentoo 2007.0 livecd for i386 system. Here
17 > is uname -a
18 > Linux map 2.6.19-gentoo-r5 #1 SMP Wed Apr 4 05:44:43 UTC 2007 i686
19 > Celeron (Mendocino) GenuineIntel GNU/Linux
20 >
21 > Initially, my /usr/src/linux -> linux-2.6.19-gentoo-r5, and it's not
22 > configured or compiled, so I don't have .config or include/linux/
23 > version.h files that linux-wlan-ng-0.2.8 looks for.
24 >
25 > I created a simple config (has wireless support, usb support),
26 > compiled it but never installed it. So I have .config and include/
27 > linux/version.h files. linux-wlan-ng could compile but the result
28 > kernel modules cannot be installed unless forced:
29 >
30 > modprobe -f prism2_usb prism2_doreset=1
31 > Segmentation fault
32 > map # lsmod
33 > Module Size Used by
34 > prism2_usb 60755 1
35 > p80211 24844 1 prism2_usb
36 >
37 > This causes the kernel to panic when I do 'reboot' but everything else
38 > seems fine.
39 >
40 > How could I go about solving this problem. I had no problem installing
41 > this card and the softwares on a Fedora core 8 release. In this case,
42 > it seems like some wierd kernel config problem causing errors when I
43 > insert modules. Is there a way to get the config file used to create
44 > the stock kernel in 2007.0 gentoo livecd?
45 >
46 > Thanks,
47 > Fei
48 >
49 Ah it tends out the kernel vermagic must match. I copied /proc/config.gz
50 and applied it to kernel source. problem solved.
51
52 Fei
53 --
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