Proxmox + Laptop + Wireless adapter (Wifi)

mr.perplexed

New Member
Oct 1, 2008
4
0
1
Hi,

I'm a newbie Proxmox user and a pretty rusty Linux user and I need help. I'm trying to set up Proxmox to run on a laptop (Dell Latitude E5500) and I want to use the wireless network adapter, but Proxmox doesn't recognise it. I have worked on this all of today and still haven't cracked it. The story so far:

  • Install Proxmox from the iso image burned onto a CD.
  • Connect the laptop to my local network via a cable.
  • Open up the Proxmox VE web interface in a browser on a different machine and log in as root/admin.
  • All hunky dory so far (a mere 10 mins work - nice).
Start wondering about getting the wifi connection to work...

Code:
$ lspci
returns a bunch of stuff, with the last line being

0c:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)

So, it looks like I've got a Broadcom BCM4322 Wireless card. Time to hit Google for the low down on getting this card going in a Debian installation...

http://wiki.debian.org/WiFi (leading to http://wiki.debian.org/bcm43xx) gives me some useful looking instructions. 2 hours later I'm getting up to speed with apt-get, modifying my sources.list file.

I follow the instructions and install:

  • wireless-tools
  • module-assistant
  • wpasupplicant (getting ahead of myself I know, but I was young and optimistic at this stage)
  • b43-fwcutter
and then follow further instructions:

Code:
$ modprobe b43
returns nothing, as does

Code:
$ iwconfig

lo       no wireless extensions.
eth0     no wireless extensions.
vmbr0    no wireless extensions.
venet0   no wireless extensions.
My wifi card has not magically appeared. Boo.

Hmm. Onwards and downwards through http://wiki.debian.org/bcm43xx we go. Let's try the native bcm43xx driver. I go through option 1-5. Another 2 hours pass. Still nothing. I can feel a sulk coming on.

Okay. Let's try Ndiswrapper. This requires some pre-requisite code for compiling the kernel (I think that's the reason):

Code:
$ aptitude install build-essential
Seems happy.

Code:
$ aptitude install linux-headers-`uname -r`
Not happy:

Code:
Couldn't find package "linux-headers-2.6.24". However the following
packages contain "linux-headers-2.6.24" in their name:
  linux-headers-2.6.24-etchnhalf.1-all
  linux-headers-2.6.24-etchnhalf.1-amd64
  linux-headers-2.6.24-all
  linux-headers-2.6.24-etchnhalf.1-all-amd64
  linux-headers-2.6.24-all-amd64
  linux-headers-2.6.24-etchnhalf.1-common
So I then install all these packages, which completes without error.

I remove the existing ndiswrapper packages as instructed:

Code:
aptitude remove ndiswrapper-common
aptitude remove ndiswrapper-utils
And now I can try and install the new ndiswrapper which I have downloaded. I extract the ndiswrapper-1.53 tar, cd into the ndiswrapper-1.53 directory and type

Code:
$ make
And I finally come to a griding halt:

Code:
Makefile:23: *** Kernel tree not found - please set KBUILD to configured kernel.
Ugh. That's it. I'm hosed. I'm out of ideas. Any help would be much appreciated.

Oh, I also referred to this guy's experiences but it didn't help in the end: http://ubuntuforums.org/archive/index.php/t-357267.html

Thanks in advance.
 

tom

Proxmox Staff Member
Staff member
Aug 29, 2006
13,684
434
83
we never tested wlan as this is not the target. but we will release Proxmox VE 1.0 (release candidate) in a few weeks and I assume this could help here. So just wait a bit for the new ISO.
 

mr.perplexed

New Member
Oct 1, 2008
4
0
1
Thanks Tom,

I was actually really hoping to get this working for next week for a multi-user training course I'm running.

From all that I've read (which feels like quite a lot) the Debian distro that Proxmox is built off should be able to support the wifi card using ndiswrapper. It's just my ignorance of kernel re-compiles that is causing me to get stuck.

The installation instructions in the ndiswrapper package state:

Prerequisites
=============

You need a recent kernel, at least 2.6.16, with header files for the
kernel. Make sure there is a link to the kernel source from the modules
directory. The command

ls /lib/modules/`uname -r`/build

should have at least 'include' directory and '.config' file.
This is what I didn't really understand. What are header files? (I'm a web developer/scripter, not a comsci programmer). How do I link to the kernel source from the modules directory? I know what a symbolic link is in Unix, I just don't know what to link to from where in the context of the Proxmox OS.
 

mr.perplexed

New Member
Oct 1, 2008
4
0
1
Right, I got hold of that yesterday. I unpacked it into /root/pve-kernel-2.6.24. What do I do with it now? I haven't actually compiled a kernel myself before.
 

mr.perplexed

New Member
Oct 1, 2008
4
0
1
Yep, read that and it didn't honestly make much sense to me. It seems that the first half is a description of how the PVE kernel has been put together. Then the second half reads:

make menuconfig

- enable ext2/ext3

- enable KVM Drivers/Virtualization/KVM CONFIG_KVM=m
CONFIG_KVM_INTEL=y
CONFIG_KVM_AMD=y
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y

disable CONFIG_DEBUG_PREEMPT=n

- enable openvz CONFIG_VE=y CONFIG_GRKERNSEC=y CONFIG_GRKERNSEC_TPE=n
- enable FAIRSCHED CONFIG_VZ_FAIRSCHED=y

- disable firewire (CONFIG_IEEE1394)

- enable bootsplash
CONFIG_FB_VESA=y
CONFIG_FRAMEBUFFER_CONSOLE=Y
CONFIG_BOOTSPLASH=y

- set CONFIG_SYSFS_DEPRECATED=n

- also set the kernel version in the 'postinst' script.


TEST with kvm:

kvm -kernel data/boot/vmlinux-2.6.24 -initrd proxmox_initrd.img -append proxdebug /dev/zero
Is this a set of instructions to follow? If I'm in the pve-kernel-2.6.24 directory and type

Code:
$ make menuconfig
I get

Code:
make: *** No rule to make target 'menuconfig'. Stop.
Sorry to be such a newb about all this.
 

dietmar

Proxmox Staff Member
Staff member
Apr 28, 2005
16,502
320
83
Austria
www.proxmox.com
Compile it yourself, or wait until we release the next version. We will not answer question about kernel compilation in this forum (we do not have the resources to do that).

- Dietmar
 

joost

New Member
Sep 28, 2008
4
0
1
Is you're wifi card by default (or in the restricted modules) supported under ubuntu-hardy? If yes, then i can probably help you out with this.

I'm running proxmox under a ubuntu minimal hardy server install (so instead of using the proxmox iso i used the proxmox repository in my apt sources and apt-get installed proxmox!).

I had the same problem with my atheros wifi card. I do now how to compile kernels, but I rather use pre-compiled ones with module-addons ( i'm kinda lazy on that matter ;)). So I looked for an "easy" way to overcome the problem and gave it a shot by installing hardy server. If you like i can write a short step-by-step guide on the forum.

Regards,
Joost
 

clipcarl

New Member
Jul 1, 2008
17
0
1
Don't bother. Most wireless cards, including Broadcom cards, cannot see traffic for more than one MAC address. So even if you find 64-bit Windows XP drivers for the card that actually work with ndiswrapper, you won't be able to use it usefully with Proxmox VE. (You won't be able to successfully bridge your VMs virtual adapters over the wireless network.)
 

joost

New Member
Sep 28, 2008
4
0
1
Don't bother. Most wireless cards, including Broadcom cards, cannot see traffic for more than one MAC address. So even if you find 64-bit Windows XP drivers for the card that actually work with ndiswrapper, you won't be able to use it usefully with Proxmox VE. (You won't be able to successfully bridge your VMs virtual adapters over the wireless network.)

I guess i was lucky then ;). Bridging works fine with my Atheros AR5007EG!
 

tog

Member
Jun 5, 2008
151
0
16
It'll work for OpenVZ containers, but not KVM bridged networking.

OpenVZ containers using venet use the same MAC address as the NIC so no problems there, but KVM bridged networking bridged to an 802.11 client wont work unless you've got special WDS support at station and AP because that is a different MAC address for each KVM.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE and Proxmox Mail Gateway. We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get your own in 60 seconds.

Buy now!