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Subject:	Re: git clone fails with error chmod on config.lock failed: Invalid argument
To:	cygwin AT cygwin DOT com
References:	<20160128172322 DOT GC18626 AT calimero DOT vinschen DOT de> <5715DCB9 DOT 7060401 AT gmail DOT com> <20160419081107 DOT GC26794 AT calimero DOT vinschen DOT de>
From:	Tomas Jura <tomas DOT jura1 AT gmail DOT com>
Message-ID:	<57161490.1000301@gmail.com>
Date:	Tue, 19 Apr 2016 13:20:48 +0200
User-Agent:	Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.7.2
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In-Reply-To:	<20160419081107.GC26794@calimero.vinschen.de>

Hi

My passwd and groups files got automatically renamed. I can't identify 
the exact date. Last update of cygwin I did yesterday, but the rename 
could happen a long time ago.

 >pwd
/etc
 > ls  passwd* groups*
passwd.backup groups.backup

 > groups
groups: cannot find name for group ID 10749228312
10749228312 ZTB+Group(513) Administrators Users ..... ZTB+Group(1298252)...

ZTB is my AD domain. Seems that any of the groups that I have assigned 
on the domain level was not resolved.

In the old groups.backup there is a record:
None:S-1-5-21-4091695911-3229423371-1046061999-513:513:

BTW: My machine is Windows Server 2008, yesterday I also run the Windows 
update procedure before I notified the chmod error.
A months ago, I had to migrate to the new AD account. The cygwin was 
installed using my old account, which is deleted now. Is it possible 
that the query to AD runs under my old account?

Tomas

On 04/19/2016 10:11 AM, Corinna Vinschen wrote:
> On Apr 19 09:22, Tomas Jura wrote:
>> Hi
>>
>> I got error  chmod on config.lock failed: Invalid argument and I was able to
>> catch the strace. It is attached.
> What I see from the strace, chmod fails to request group information:
>
> 299755  597014 [main] chmod 5840 internal_getlogin: group not found in group DB
>
> So it looks like either your /etc/passwd or your /etc/group file is
> broken.   The new account handling is a bit more sensitive to broken
> passwd and group files.  For more information on the changes in account
> handling see https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping
>
> For a start, just move both files out of the way, stop your Cygwin
> processes and try again.
>
>
> Corinna
>


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