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Date: Thu, 25 Mar 2010 09:52:46 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: File permissions on samba network share
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On Mar 25 06:50, Chris wrote:
> Dear fellow Cygwinners,
> 
> I use Cygwin to work on a samba network drive and am unable to execute bash
> scripts from there because "bash: ./amssetup: Permission denied". I think this
> is due to the missing owner/group info:
> 
> $ ls -l amssetup
> -rwxrw---- 1 ???????? ???????? 1014 2009-12-15 14:16 amssetup
> 
> If I mount this network drive using the "noacl" option, it looks like this:
> 
> $ ls -l amssetup
> -rw-r--r-- 1 chris None 1014 2009-12-15 14:16 amssetup
> 
> This lets the script execute, but I am a little bit worried about the other
> permissions, "-rw-r--r--" instead of "-rwxrw----".
> 
> Why are the permissions different?

http://cygwin.com/cygwin-ug-net/using.html#mount-table

> Is there a way of preserving the original permissions and still fake the
> user/group info as with "noacl"? 

No.  Since you're not using AD accounts and no winbind, the ACL returned
by Samba reflect the UNIX user and UNIX group the file is owned by.
I don't think there's a reliable way to convert the SIDs in the ACL to
the current user and primary group, except for another mount flag.

> Or is it safe to use the "noacl" mount? 

It's safe, usually.


Corinna

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

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