1

Output of iwconfig:

lo: no wireless extensions
enp9s0: no wireless extensions

Output of lspci | grep Network

0c:00.0 Network controller:  Broadcom Inc. and subsidiaries BCM4312 802.11b/g LP-PHY (rev 01)
  • Anyone know how to connect to wifi during arch installation – Anup Saha Feb 16 at 14:18
  • Wifi-menu not working – Anup Saha Feb 16 at 14:18
  • iwconfig not showing any wireless interface – Anup Saha Feb 16 at 14:19
  • Dont have any ethernet connection completely rely on wifi hotspot – Anup Saha Feb 16 at 14:20
  • would be nice to know what "some status" is. Also you want to nicely format the output. Click "help" to find out how. – Tomáš Pospíšek Feb 16 at 21:13
2

Many Broadcom wireless adapters require proprietary firmware not included with the Archiso. It is going to be easiest to complete the installation with an Ethernet cable connected if you can manage that, but make sure to install the appropriate firmware package from the AUR when you are installing Arch.

Probably b43-firmwareAUR or b43-firmware-classicAUR is needed.

See the kernel wireless wiki for details on identifying which firmware you need.

Otherwise, if Ethernet is not an option, you will need to either makepkg on another system or copy and install the firmware into the Archiso environment manually.


If you are relying on a WiFi hotspot from your smart phone you could try using USB tethering from Android or iOS instead. This will create an Ethernet interface and allow accessing the smart phone's data connection.

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1

You can connect to available Wifi network using Network manager.

  1. Is Network Manager installed? You install it during the installation of Arch Linux. If not, install it. If you don't have an Ethernet connection, it won't help you.

    pacman -S wpa_supplicant wireless_tools networkmanager
    
  2. Enable the Network Manager.

    systemctl enable NetworkManager
    
  3. Start Network Manager.

    systemctl start NetworkManager
    
  4. Reboot.

    reboot
    
  5. List nearby networks.

    nmcli device wifi list
    
  6. You should be able to see a list of available networks nearby. Connect to a nearby network. SSID - Name of Wifi Network. SSID_password - Password of Wifi Network.

    nmcli device wifi connect SSID password SSID_password
    

Src : https://linuxhint.com/arch_linux_network_manager/

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