I am seeing the following error from Tramp:

tramp-error: ‘echo \"`uname -sr`\"’ does not return a valid Lisp expression: ‘"MSYS_NT-10.0-22631 3.4.10-87d57229.x86_64" [17;120H’

Background:

with suitable values for WINUSERNAME, WIN11HOME, WINPATH.

I can ssh to WIN11HOME (it is running the OpenSSH Server), using keys stored locally in my macOS.

By default, the shell produced for the ssh to windows is a PowerShell, which I can well understand is not what Tramp expects; Tramp was producing an error "Couldn't find remote shell prompt for /bin/sh". 

To address, now I detect the tramp attach on the Windows side and, in the Tramp case, move to shell "sh" for the Windows prompt.

Thereafter, tramp produces the "uname/lisp" error above.

FYI, from the windows side:

    sh-5.2$ uname -sr
    MSYS_NT-10.0-22631 3.4.10-87d57229.x86_64

Thanks in advance.

------

In GNU Emacs 29.1 (build 1, aarch64-apple-darwin21.6.0, NS
 appkit-2113.60 Version 12.6.6 (Build 21G646)) of 2023-08-16 built on
 armbob.lan
Windowing system distributor 'Apple', version 10.3.2487
System Description:  macOS 14.5

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