How do I get lede-yun in my Yún Shields that are running 1.6.2 ??

Hi,

Can anyone please point to a procedure to update the Yún Shields to the new lede-yun?

I tried the updater from: Releases · arduino/yun-go-updater · GitHub

But I got:

"No serial port suitable for updating Yun"

Although I am sure of the IP addresses.

Is there a manual method? Can someone pls. describe it ??

TIA,
Alex

Also posted at:

Yep, that was me too. I read in the 17.11 prerelease thread in this forum that there was a manual method but it is not described. Where is the manual method? Can it be done on a Yun Shield ?