[Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

bloom · 2011-08-08 20:08:23

The following command:

wpa_supplicant -B -Dwext -i wlan0 -c /etc/wpa_supplicant.conf

produce the following output:

Could not read interface wlan0 flags: No such device

Help!

Last edited by bloom (2011-08-10 20:07:57)

litemotiv · 2011-08-08 20:11:49

Did your device naming change perhaps?

Btw, upgrade to 3.0 worked fine here on a 2010 MBA.

wonder · 2011-08-08 20:13:31

we cannot help you unless you say that chipset. i'm sure that you forgot to rebuild the module for 3.0.

bloom · 2011-08-08 20:28:28

litemotiv wrote:

Did your device naming change perhaps?

How can I check that?

litemotiv · 2011-08-08 20:29:26

bloom wrote:

litemotiv wrote:
Did your device naming change perhaps?
How can I check that?

ifconfig -a

Which revision Air do you have?

bloom · 2011-08-08 20:35:19

wonder wrote:

we cannot help you unless you say that chipset. i'm sure that you forgot to rebuild the module for 3.0.

Could you indicate the command I should type to obtain the information you're asking?
If you're asking for the chipset of the network controller, lspci says: Broadcom BCM43224.
What module are you refering to?

wonder · 2011-08-08 20:36:17

bloom wrote:

wonder wrote:
we cannot help you unless you say that chipset. i'm sure that you forgot to rebuild the module for 3.0.
Could you indicate the command I should type to obtain the information you're asking?
If you're asking for the chipset of the network controller, lspci says: Broadcom BCM43224.
What module are you refering to?

broadcom-wl from aur

also take a look at this: https://bugs.archlinux.org/task/25454

I think this should be fixed in broadcom-wl. E.g., they could add a file "/lib/modprobe.d/broadcom-wl.conf", containing:
blacklist bcma

Last edited by wonder (2011-08-08 20:37:47)

bloom · 2011-08-08 20:40:44

litemotiv wrote:

bloom wrote:
litemotiv wrote:
Did your device naming change perhaps?
How can I check that?
ifconfig -a

How can I know if my device naming has changed from the output of this command?
If so, how could I solve my problem based on that knowledge?

litemotiv wrote:

Which revision Air do you have?

3,2

litemotiv · 2011-08-08 20:43:11

bloom wrote:

litemotiv wrote:
Which revision Air do you have?
3,2

Thanks, in that case forget what wonder said, your wireless should work fine with the in-kernel brcm80211 driver.

bloom wrote:

How can I know if my device naming has changed from the output of this command?
If so, how could I solve my problem based on that knowledge?

Is wlan0 still listed there as a device?

bloom · 2011-08-08 20:50:07

litemotiv wrote:

Is wlan0 still listed there as a device?

No.

litemotiv · 2011-08-08 20:52:05

bloom wrote:

litemotiv wrote:
Is wlan0 still listed there as a device?
No.

Ok, you will need to check your dmesg output for any messages concerning brcm80211, be sure to also check if the module isn't blacklisted from loading.

bloom · 2011-08-08 20:59:09

litemotiv wrote:

bloom wrote:
litemotiv wrote:
Is wlan0 still listed there as a device?
No.
Ok, you will need to check your dmesg output for any messages concerning brcm80211, be sure to also check if the module isn't blacklisted from loading.

There are two messages, one regarding brcmutil, the other brcmsmac. Both messages express the fact that the module are in early stage of development.

litemotiv · 2011-08-08 21:02:03

bloom wrote:

There are two messages, one regarding brcmutil, the other brcmsmac. Both messages express the fact that the module are in early stage of development.

Hmm that's odd, do you have any new interfaces listed with ifconfig -a, an eth0 perhaps?

bloom · 2011-08-08 21:13:48

litemotiv wrote:

bloom wrote:
There are two messages, one regarding brcmutil, the other brcmsmac. Both messages express the fact that the module are in early stage of development.
Hmm that's odd, do you have any new interfaces listed with ifconfig -a, an eth0 perhaps?

No, just a 'lo' and nothing else.

litemotiv · 2011-08-08 22:00:05

bloom wrote:

No, just a 'lo' and nothing else.

In that case i'm at a loss for now, sorry. I had the exact same machine until a few days ago and had no problems upgrading to 3.0, so i can't escape the feeling that we're missing something simple or obvious at this point. I don't recall seeing any other reports here or on other forums about Air 3,2 upgrades gone bad on kernel 3.0...

bloom · 2011-08-09 13:04:11

I tried with the broadcom-bl driver and I got a new eth0 in the ifconfig -a output, but still no wlan0...
I think I'm gonna use this as a pretext to reinstall arch in efi mode...
Thanks for the help.

multiphrenic · 2011-08-09 16:47:37

Have you looked at at https://bbs.archlinux.org/viewtopic.php?id=111554? Report your issues there, a number of people are experiencing similar problems.

bloom · 2011-08-10 20:07:20

multiphrenic wrote:

Have you looked at at https://bbs.archlinux.org/viewtopic.php?id=111554? Report your issues there, a number of people are experiencing similar problems.

Well, thanks for the tip: compat-wireless solved it!

multiphrenic · 2011-08-11 01:05:09

Lucky you...now if only it would fix mine

Arch Linux

#1 2011-08-08 20:08:23

[Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#2 2011-08-08 20:11:49

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#3 2011-08-08 20:13:31

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#4 2011-08-08 20:28:28

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#5 2011-08-08 20:29:26

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#6 2011-08-08 20:35:19

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#7 2011-08-08 20:36:17

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#8 2011-08-08 20:40:44

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#9 2011-08-08 20:43:11

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#10 2011-08-08 20:50:07

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#11 2011-08-08 20:52:05

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#12 2011-08-08 20:59:09

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#13 2011-08-08 21:02:03

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#14 2011-08-08 21:13:48

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#15 2011-08-08 22:00:05

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#16 2011-08-09 13:04:11

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#17 2011-08-09 16:47:37

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#18 2011-08-10 20:07:20

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

#19 2011-08-11 01:05:09

Re: [Solved] Lost Network on a MacBook Air after the Update to Kernel 3.0

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