Re: Enable virtual interface in pre.d script

[Andrei Borzenkov <arvidjaar gmail com>]

On 20.11.2021 16:15, Eric wrote:
> On 19.11.2021 16:36, Eric wrote:
> I have a chicken/egg problem.  
>
> I want to have wlan1 as an interface.  I have created a connection to use it.  But it doesn?t exist on 
> reboot so I?d like to have a script in pre.d/ that will add the interface but NM refuses to start the 
> connection because the interface does not exist.  Is there a way to get the script to execute earlier so 
> that it can create the virtual interface prior to the connection check if its present?
>
> On 19.11. 2021 17:32, Andrei wrote:
> You need to explain in more details what wlan1 interface is and how it is added.
>
> wlan0 is instantiated automatically when the driver is loaded.  I use it as an AP interface.  I want to 
> have AP/STA so I need to create wlan1 for the client interface.  I do this with:
>
> iw dev wlan0 interface add wlan1 type managed
>
> but this interface does persist across power cycle so I need to create it every time.  I would like to have 
> the interface created when networkmanager tries to bring up the connection, but the script with the above 
> command (in the pre.d directory) does not get called before networkmanager tells me there is no interface 
> for the connection.

I do not think it is possible. Just create startup script to add second interface.