On Mon, Mar 2, 2026 at 9:06 PM Bill Stewart via Cygwin <[email protected]> wrote: > > 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' > > <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... > > 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
$ getent group S-1-5-83-0 Virtual Machines:S-1-5-83-0:339968: $ getent group 339968 <nothing> $ getent group 'Virtual Machines' <nothing> $ getent group 'Virtual Machines@NT VIRTUAL MACHINE' <nothing> $ getent group 'Virtual Machines+NT VIRTUAL MACHINE' <nothing> Why? WHHHHHHYY? ;( > > 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... Well, we need access to that group for working on VM images, including creation, modification, backup/restore etc Thanks, Martin -- 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
