1.7.5-1: a problem with mkgroup

[Yuval Emek <yuval dot emek at gmail dot com>]

When invoking a cygwin bash shell window, I'm getting the following message:

***message begins***
Your group is currently "mkgroup".  This indicates that neither
your gid nor your pgsid (primary group associated with your SID)
is in /etc/group.

The /etc/group (and possibly /etc/passwd) files should be rebuilt.
See the man pages for mkpasswd and mkgroup then, for example, run

mkpasswd -l [-d] > /etc/passwd
mkgroup  -l [-d] > /etc/group

Note that the -d switch is necessary for domain users.
***message ends***

An attempt to run mkgroup ends in:
$ mkgroup
SYSTEM:S-1-5-18:18:
mkgroup (101): [1355] The specified domain either does not exist or could not be
 contacted.

The content of my /etc/group file is:
$ cat /etc/group
root:S-1-5-32-544:0:
SYSTEM:S-1-5-18:18:
Administrators:S-1-5-32-544:544:
Backup Operators:S-1-5-32-551:551:
Cryptographic Operators:S-1-5-32-569:569:
Distributed COM Users:S-1-5-32-562:562:
Event Log Readers:S-1-5-32-573:573:
Guests:S-1-5-32-546:546:
IIS_IUSRS:S-1-5-32-568:568:
Network Configuration Operators:S-1-5-32-556:556:
Performance Log Users:S-1-5-32-559:559:
Performance Monitor Users:S-1-5-32-558:558:
Power Users:S-1-5-32-547:547:
Remote Desktop Users:S-1-5-32-555:555:
Replicator:S-1-5-32-552:552:
Users:S-1-5-32-545:545:
Offer Remote Assistance Helpers:S-1-5-21-112666640-2348469801-2904254719-1005:10
05:
None:S-1-5-21-112666640-2348469801-2904254719-513:513:

An attempt to run mkpasswd ends in:
$ mkpasswd
SYSTEM:*:18:544:,S-1-5-18::
LocalService:*:19:544:U-NT AUTHORITY\LocalService,S-1-5-19::
NetworkService:*:20:544:U-NT AUTHORITY\NetworkService,S-1-5-20::
Administrators:*:544:544:,S-1-5-32-544::
mkpasswd (102): [1355] The specified domain either does not exist or could not b
e contacted.

The content of my /etc/passwd file is:
$ cat /etc/passwd
SYSTEM:*:18:544:,S-1-5-18::
LocalService:*:19:544:U-NT AUTHORITY\LocalService,S-1-5-19::
NetworkService:*:20:544:U-NT AUTHORITY\NetworkService,S-1-5-20::
Administrators:*:544:544:,S-1-5-32-544::
Admin:unused:1001:513:Admin,U-YUVALEM-W7\Admin,S-1-5-21-112666640-2348469801-290
4254719-1001:/home/Admin:/bin/bash
Administrator:unused:500:513:U-YUVALEM-W7\Administrator,S-1-5-21-112666640-23484
69801-2904254719-500:/home/Administrator:/bin/bash
Guest:unused:501:513:U-YUVALEM-W7\Guest,S-1-5-21-112666640-2348469801-2904254719
-501:/home/Guest:/bin/bash
i-yuvale:unused:123982:10513:U-MIDDLEEAST\i-yuvale,S-1-5-21-72051607-1745760036-
109187956-113982:/home/i-yuvale:/bin/bash

The above phenomenon occurs with a fresh cygwin installation (using
setup.exe with the default packages) on my Windows 7.
It may be related to another problem I'm experiencing (reported in
http://cygwin.com/ml/cygwin/2010-04/msg00740.html) in some mysterious
(and obviously indirect) manner.

Any suggestions?

The output of running cygcheck -s -v -r is attached.

Attachment: cygcheck.out
Description: Binary data

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple