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Date: Thu, 22 Jan 2009 12:31:04 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: ???????? owner and group
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On Jan 21 16:52, Warren Young wrote:
> I'm breaking in a new machine, and just noticed that when I "ls -l" a Samba 
> share I have mounted, I get ???????? in place of the user and group instead 
> of "myname None" as I normally expect, for all files.  If I say "ls -ln", 
> the values are (u_long(-1)).
>
> If I list something on the local filesystem that I own, it's fine.  Some 
> system files show similar question mark symptoms, though, like regedit.exe:
>
> -rwxrwx---+ 2 4294967295 4294967295 134656 Jan 20  2008 regedit.exe
>
> Following advice about ???????? in the user guide, I checked that 
> /etc/passwd exists, and it does.
>
> I added 'acl' to my cygdrive mount line in /etc/fstab for 1.7, but that 
> didn't change anything.

Exactly.  'acl' is the default anyway.  The problem is this:

Have a look into the ACL by using Windows Explorer properties/security
dialog.  What you see is thatthe user and group for a file on the share
is "Unix User\yourunixuser" and "Unix Group\yourunixgroup".  These
accounts are missing in your /etc/passwd and /etc/group files.

What you can do:

- Add the Unix accounts to /etc/passwd and /etc/group, for instance:

  $ mkpasswd -L sambaserver,20000 -U yourunixuser
  Unix User\yourunixuser:unused:21000:99999:,S-1-22-1-1000::
  $ mkgroup -L sambaserver -U yourunixgroup
  Unix Group\yourunixgroup:S-1-22-2-101:20101:

- Change the cygdrive flags in /etc/fstab to noacl, which is equivalent
  to the old CYGWIN=nosmbntsec.

> I haven't noticed any permission failures, so maybe this is just a display 
> issue, not some credential issue.

Right.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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