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Date: Tue, 3 Mar 2026 09:26:00 +0100
Message-ID: <CA+1jF5oHw71rv-OH893R+DdNpnRUQAtp=WS_fXvxe1WBsC0H6w@mail.gmail.com>
Subject: Re: HYPER-V VMs: Cygwin /bin/getent group 'Virtual Machines' cannot
 find the group
To: cygwin AT cygwin DOT com
From: =?utf-8?q?Aur=C3=A9lien_Couderc_via_Cygwin?= <cygwin AT cygwin DOT com>
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On Mon, Mar 2, 2026 at 8:19 PM Martin Wege via Cygwin <cygwin AT cygwin DOT com> wrote:
>
> Hello,
>
> we use HYPER-V virtual machines on Windows 10 and Windows 11. It seems
> they use a "special" kind of group called 'Virtual Machines', which
> Cygwin (3.6.5) /bin/getent cannot lookup:
>
> getent group 'Virtual Machines'
> <nothing>
>
> Does anyone have ideas or clues how to get getent group to work with
> this kind of Windows group?
>
> We want the Cygwin gid for that group, and use Cygwin commands to work
> with those files...

Déjà vu

1. Please read https://cygwin.com/pipermail/cygwin/2025-July/258505.html

2. Try this:
getent group "NT VIRTUAL MACHINE+Virtual Machines"
For me, with default (empty, except comments) /etc/nsswitch.conf, it
does not work. Which I consider a bug.


Aurélien
--
Aurélien Couderc <aurelien DOT couderc2002 AT gmail DOT com>
Big Data/Data mining expert, chess enthusiast

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