Arch Linux

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Problem Install Arch ISO Wifi USB

Hi all

i have a problem, basically when i run iwctl for connect to my wifi and type device list, the list is empy, regard to the Arch Wifi: https://wiki.archlinux.org/title/Networ … n/Wireless

when i run dmesg | grep usbcore this is the output:

usbcore: registered new interface driver r8188eu

but if i put this command ip link i don't see any wireless interface, so i'm stuck

WIFI USB MODEL: TP-LINK TL-WN725N

Thanks in advice

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Re: Problem Install Arch ISO Wifi USB

UPDATE:

Nevermind, i remove the wifi card mini pci express on motherboard and leave only the wifi usb adapter and reboot the laptop now if i put ip link i see the device wlan0 on state "DOWN" is i put ip link set wlan0 up doesn't come up, still in "Down" state.

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Re: Problem Install Arch ISO Wifi USB

Hi all i fix the problem do this:

Run this command:
wpa_passphrase MYSSID passphrase and i get this output:

network={
    ssid="MYSSID"
    #psk="passphrase"
    psk=59e0d07fa4c7741797a4e394f38a5c321e3bed51d54ad5fcbd3f84bc7415d73d
}

I put this on /etc/wpa_supplicant/wpa_supplicant.conf and then i run this command:

wpa_supplicant -i wlan0 -D wext -c /etc/wpa_supplicant/wpa_supplicant.conf -B
dhclient wlan0

I use driver "wext" beacuse otherwise i receive this error:

nl80211: Driver does not support authentication/association or connect commands

Now with this command i'm able to connect with my USB WIFI Adapter

Thanks

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Re: Problem Install Arch ISO Wifi USB

Not working anymore, i think the module on archiso for this usb wifi not working, where i found the correct driver and install manually?

Thanks in advice

Last edited by Dexter23 (2022-02-19 16:46:09)

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: Problem Install Arch ISO Wifi USB

Try unloading & reloading the r8188eu kernel module to make the interface for the PCIe card mentioned in the OP appear.

where i found the correct driver and install manually?

You need to determine the chipset in the USB wireless device and perform a search based on that information. Installing drivers manually is not usually needed in Linux though because the kernel usually provides them.

However:

Not working anymore

^ What does that mean, exactly? See also https://bbs.archlinux.org/viewtopic.php?id=57855

---

Jin, Jîyan, Azadî

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Re: Problem Install Arch ISO Wifi USB

Hi

I already try to unload e reload the kernel module but nothing, i'am not a Linux expert but if doing an iwconfig I see the wlan0 interface, it is not a driver problem otherwise I shouldn't even see the interface or am I wrong?

Trying first on a vm on virtualbox with the same wifi usb with wpa supplicant and i was able to connect to the wifi network, but then trying on the notebook it didn't work, and in any case I tried again on virtualbox and it doesn't work, it seems that it connects for a few seconds and after is disconnect again and if i try the same command again it's not connect anymore.

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Re: Problem Install Arch ISO Wifi USB

BTW the chipset is RTL8188EUS

Dexter23

Member

Registered: 2022-02-19

Posts: 29

Re: Problem Install Arch ISO Wifi USB

I fix the problem with this two command:

wpa_supplicant -i wlan0 -D wext -c /etc/wpa_supplicant/wpa_supplicant.conf -B
dhcpcd wlan0

With dhclient not get the ip from the AP with the command dhcpcd it works