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Mon, 02 Mar 2026 12:06:12 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Mon, 2 Mar 2026 13:05:44 -0700 X-Gm-Features: AaiRm50w_w1MTRzw9TWCvNeZiASYjwmFUaZlo7uM0-QOkh6vSYZzL6kktYp-0rE Message-ID: Subject: Re: HYPER-V VMs: Cygwin /bin/getent group 'Virtual Machines' cannot find the group To: cygwin AT cygwin DOT com X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 List-Id: General Cygwin discussions and problem reports List-Archive: List-Post: List-Help: List-Subscribe: , From: Bill Stewart via Cygwin Reply-To: bstewart AT iname DOT com Cc: Bill Stewart Content-Type: text/plain; charset="utf-8" Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 622K6Xxa115465 On Mon, Mar 2, 2026 at 12:19 PM Martin Wege 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' > > > 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... Information on this group is in the documentation: https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/manage/understand-security-identifiers SID: S-1-5-83-0 Display name: NT VIRTUAL MACHINE\Virtual Machines Description: A built-in group. The group is created when the Hyper-V role is installed. The Hyper-V Management Service (VMMS) maintains the membership of this group. This group requires the 'Create symbolic links' right (SeCreateSymbolicLinkPrivilege) and the 'Log on as a service' right (SeServiceLogonRight). Not sure how you use it in Cygwin, though... -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple