On Fri, May 24, 2019 at 5:25 PM Charles Curley
<[email protected]> wrote:
> I don't know what the thunderbolt cable is or how it fits into this.

That's the "dock" connector for this laptop.
https://www.dell.com/en-us/shop/accessories/apd/452-bcnp
The nvidia video card, and the wired ethernet are in the dock.

> There is an action, "down", that may run the script just before the
> connection is actually shut down, and another one, "post-down", that
> runs after the connection is shut down. You might have enough time to do
> what you need in the "down" action. Of course, if NetworkManager's
> first clue is that you have pulled the plug on the network, it's
> probably too late.
>
That's what I strongly suspect.  But I'll try the "down" event script first.

Then I might try autofs and see if I'm using the mounts infrequently
enough that it will usually have them umounted anyway.

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