LinuxCNC on Linux Mint 20 quick and nearly easy install

Hi all,
Thanks for the excellent information in this article.
Using this, I was able to get LinuxCNC running on my upgraded system in RT mode with Mint 20.

One issue remains, which I cannot find a solution for yet:
I added a new WiFi adapter to it, a TPLink Archer T2U Plus AC600, on an USB port. (The one with the big antenna).

For the "regular Mint 20" image, I can install it, using instructions to download a driver and use dkms to build it.
For example as explained on
forums.linuxmint.com/viewtopic.php?p=172...39f42dc289e#p1726488

However:
When I do this in the RT kernel, the same steps fail because the "sudo ./dkms-install.sh" command cannot find the proper kernel source directory for the 4.9.0-13-rt-amd64 kernel.
So where would that be located? This kernel does not have a "build" directory...
Should this be possible for this kernel, or do I need a different adapter?

Thanks,
Frans

Maybe I found the answer....
Should I install this package:
packages.debian.org/stretch/kernel/linux...rs-4.9.0-13-rt-amd64

Will try this tonight..
Frans

franstrein wrote: Maybe I found the answer....
Should I install this package:
packages.debian.org/stretch/kernel/linux...rs-4.9.0-13-rt-amd64

Will try this tonight..
Frans

Yes you can safely install that package and check if you can make the wifi work, although i would just ditch the wifi, but since the new installation procedure (if anything goes wrong) is short, give it a try.

I personally would through that Tplink wifi dongle as far as I could throw it. The Asus Nano is cheap as chips and works out of the box as far back as Mint 17.3 as do most other wifi dongles. I have not had a good run with TPLINK

I use a lot of TPlink ones and have no issues besides a very weak signal compared to built in cards on my laptops.

Hi all,

Thanks for your responses on the TP Link WiFi USB adapter.
I finally got it to work, using the links I referred to above (installing the correct Linux Headers and using dkms scripts to install and build the module).
It took a lot of steps to add the dependent packages, and also to get the right version of the RTL8812au module active in my system.
But at the end it worked. I need to verify whether I didn't break anything else in my system, and I will capture my steps for future usage.

Frans