Re: How to deal with a new Wifi Adapter?

[Thomas Haller <thaller redhat com>]

On Wed, 2019-04-10 at 12:24 -0400, Derek Atkins wrote:
> Hi,
> I'm currently running Fedora 29 and my embedded wifi adapter is
> failing.  So I bought a USB Wifi adapter, which seems to be working
> well..  Except for one problem:  Network Manager does not know to
> apply
> all my existing wifi connection information to the new adapter.
>
> Short of going through each connection, changing it to the new
> adapter,
> then deleting the "<SSID> 2" network that gets created --- is there
> some
> way to tell NM to apply all wifi networks to all wifi adapters?

Hi,

I'd do:

    UUIDS="$(nmcli -g TYPE,UUID connection show | \
                    sed -n 's/802-11-wireless://p')"

    for UUID in $UUIDS; \
    do \
        nmcli \
           -f 
connection.id,connection.uuid,802-11-wireless.ssid,connection.interface-name,802-11-wireless.mac-address \
           -mode multiline \
           connection show uuid "$UUID" ; \
        echo ; \
    done

if you want to clear these values:

    for UUID in $UUIDS; \
    do \
        echo "$UUID ..." ; \
        nmcli connection modify uuid "$UUID" \
            connection.interface-name '' \
            wifi.mac-address '' ; \
    done


> In a similar vein, is there a way to tell NM to disable to embedded
> wifi
> adapter?

put

  [device-unmanage-internal-wifi]
  match-device=mac:aa:bb:cc:dd:ee:ff
  managed=0

to /etc/NetworkManager/conf.d/99-unmanaged-internal-wifi.conf and
restart.

Or even blacklist the module from loading in /etc/modprobe.d.


best,
Thomas

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