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#1 2021-03-12 08:06:00

horo
Member
Registered: 2021-03-12
Posts: 5

Cannot turn on wlan0, live boot iso

Just got a new hard drive in an old laptop and wanted to try Arch on it. Prior to Arch, I was running a Debian based system with no issues.
trying to enter iwctl mode results in the prompt hanging at 'starting IWD...' until it times out.
running

ip link set wlan0 up

does not throw an error but the device is still DOWN when running ip addr

iwconfig wlan0 power on

results in 'Error for wireless request "Set Power Management" (8B2C) : SET failed on device wlan0 ; Operation not supported.

I found this which i followed but had no success with.

Any help would be appreciated

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#2 2021-03-12 10:31:51

deep42thought
Administrator
From: Jena, Germany
Registered: 2017-06-17
Posts: 601

Re: Cannot turn on wlan0, live boot iso

might it be, that you're hit by this?

I'll build a new iso (with the newer iwd package), please try that, once it's finished.

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#3 2021-03-12 15:25:08

levi
Moderator
From: Yorkshire, UK
Registered: 2018-06-16
Posts: 952

Re: Cannot turn on wlan0, live boot iso

I've never found my wifi card to be assigned to the name wlan0 when running arch.  Run 'ip l' to find out what your network card is actually called.


Architecture: pentium4, Testing repos: Yes, Hardware: EeePC 901+2GB RAM+OS half on the SD card.

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#4 2021-03-12 17:06:28

horo
Member
Registered: 2021-03-12
Posts: 5

Re: Cannot turn on wlan0, live boot iso

deep42thought wrote:

might it be, that you're hit by this?

How would I confirm that on my end? I see on boot of the liveiso a [FAILED] tag next to wireless but it's gone in a flash. I tried looking in /var/log but saw nothing of use. And not to be pushy, but when would a new iso be up? What kind of schedule are the 32bit isos on?

levi wrote:

Run 'ip l' to find out what your network card is actually called

my card shows as wlan0. ip, lspci, and iwconfig all spit that name back at me

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#5 2021-03-12 17:19:27

levi
Moderator
From: Yorkshire, UK
Registered: 2018-06-16
Posts: 952

Re: Cannot turn on wlan0, live boot iso

Yes, archlinux has switched to systemd like most other mainstream distributions.  That means logs in /var/log have been maingly supplanted by those exposed by journalctl; try 'journalctl -b 0' to see messages since last boot.  Or you may need to see the kernel logs which are in dmesg; you need to do 'sudo dmesg' for some time now; I'm not sure exactly when I started to need to sudo it.

It may be worth finding out what kernel that live iso is running.  Having booted it, typing 'uname -r' will tell you that.  I'm currently on 5.11.2, and that seems to be working for me.  Apparently due to my update frequency I jumped from 5.10.16 to 5.11.2, so I'm not sure if I accidentally skipped over this issue, or it's still working for some other reason (perhaps I'm not using WPA2, I'm not sure).

Edit: If you're running a live iso I expect you'll be logged in as root anyway, so you can just dmesg, no sudo required.  You'll probably need to pipe it into less to be able to find your way around it; 'dmesg|less', then you can scroll about it and search for things if you know how they're spelled.

Last edited by levi (2021-03-12 17:21:54)


Architecture: pentium4, Testing repos: Yes, Hardware: EeePC 901+2GB RAM+OS half on the SD card.

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#6 2021-03-13 09:43:00

horo
Member
Registered: 2021-03-12
Posts: 5

Re: Cannot turn on wlan0, live boot iso

I had a chance to run dmesg and can confirm it's the issue deep42thought linked to.
So just wait till a new iso is put out?

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#7 2021-03-14 07:14:57

deep42thought
Administrator
From: Jena, Germany
Registered: 2017-06-17
Posts: 601

Re: Cannot turn on wlan0, live boot iso

the new iso is built since 2021-03-12 smile

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#8 2021-03-14 08:13:53

horo
Member
Registered: 2021-03-12
Posts: 5

Re: Cannot turn on wlan0, live boot iso

deep42thought wrote:

the new iso is built since 2021-03-12 smile

?  I just checked here and it says the current version is 5.11.1.arch1-1.0 and was updated 2021.03.02.
am i looking in the wrong spot?

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#9 2021-03-14 08:17:14

deep42thought
Administrator
From: Jena, Germany
Registered: 2017-06-17
Posts: 601

Re: Cannot turn on wlan0, live boot iso

ah, dammit. The update of the website got stuck, again. If you look further down, you see, that the magnet link is already of the recent iso. Have a look into the archisos/ folder on any mirror and you should see the most recent iso.

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#10 2021-03-14 19:20:39

horo
Member
Registered: 2021-03-12
Posts: 5

Re: Cannot turn on wlan0, live boot iso

Ok, just grabbed  the new iso from the magnet link and booted up with it.
The problem appears the same, no wifi, cannot set wlan0 to UP, and IWD hangs when trying to initialize
i ran

dmesg | less

and searched for 'iwd'. The results are different now and the error discribed here no longer shows up.
so i guess it's a different problem

here's some info-

lspci -k
....
03:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 02)
              Subssystem: Accton Technology Corporation WN7811A (Toshiba PA3722U-1MPC) 802.11bgn Wireless Half-size Mini PCIe Card
              Kernel driver in use: ath9k
              Kernel modules: ath9k, wl

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