LinuxQuestions.org - [SOLVED] no wlan0 with slackwarearm-current dated feb 6, 2022

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no wlan0 with slackwarearm-current dated feb 6, 2022

I did a fresh install on my Pi3 and can't get wlan0 to come up. "ifconfig wlan0 up" gives "wlan0: ERROR while getting interface flags: No such device" and "wpa_supplicant ..." gives amoung other things "Failed to initialize driver 'nl80211'".

Wireless on these things is less than fun. :(

Jim

What is the wireless chipset (the command lspci issued in a terminal should provide that information)?

Did 'lspci' as root and got this:

lspci: Cannot find any working access method.

Some serious hair pulling going on here because before the upgrade I had the wireless up and running without an issue.

Isn't there something in dmesg that I can grep? 'wlan' and 'phy' weren't of much use.

uname -r gives "5.15.18-v7-sarpi3" so I think my /boot might be messed up.

Jim

edit: I did 'modprobe brcmfmac' and 'modprobe mac80211_hwsim' and wlan0 came up. Do we have to set up the 80211 module loading somewhere?

Quote:

Originally Posted by jowski (Post 6326863)

Hi Jim,

I'm not having any problems with the RPi3 wireless using the 5.15.18-v7-sarpi3 batch. I do use networkmanager and not wpa_supplicant, but that should make no difference. There's a wireless guide on this page that may be of assistance.

[EDIT]

Code:

root@drie:~# iwconfig wlan0

wlan0    IEEE 802.11  ESSID:off/any

          Mode:Managed  Access Point: Not-Associated  Tx-Power=31 dBm

          Retry short limit:7  RTS thr:off  Fragment thr:off

          Encryption key:off

          Power Management:on



root@drie:~# ifconfig wlan0 up

root@drie:~# iwlist wlan0 scan

This gives me a list of many wireless access points.

It turns out that I made a mistake in the installation. When I reinstalled and followed the instructions carefully, I was able to bring wlan0 up without a problem. It's another lesson learned for this old guy who's been a slacker for over 25 years. Next time I "assume" and think I can skip an instruction, I'll look again.

Marking it solved. Thanks for everything.

Jim