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From: Andrew DeFaria <Andrew AT DeFaria DOT com>
Subject:  Re: Permissions problem - odd setup
Date:  Tue, 21 Feb 2006 09:40:07 -0800
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Markus Schönhaber wrote:
-- 
Why do women wear evening gowns to nightclubs? Shouldn't they be wearing 
night gowns?
> Andrew DeFaria wrote:
>> Eric Blake wrote:
>>>>>> I have a somewhat odd setup here and am having a permissions
>>>>>> problem with my userid and authentication.
>>>>>>
>>>>>> In general I'm trying to have one home directory that is shared
>>>>>> between Windows and Linux. On Windows I use Cygwin. Normally this
>>>>>> involves mounting my Windows oriented home directory and proper
>>>>>> generation of my domain userid in /etc/passwd. Here things are a
>>>>>> bit different.
>>>>>>
>>>>>> My home directory here is on a Linux box running Samba. I login as
>>>>>> <domain>\defaria on my Windows box. I have generated my
>>>>>> /etc/password entry with mkpasswd -d -u defaria > /etc/passwd.
>>>>>> However the Linux box running Samba does not participate in a
>>>>>> domain rather it is using
>>>>>> a workgroup.
>>> I don't have access to a Samba mount point, so maybe my advice won't
>>> help much, but here goes anyways.
>>>
>>>>>> The symptoms that I see are as follows:
>>>>>>
>>>>>> While I can create a file in my home directory I cannot edit it -
>>>>>> access denied:
>>>>>>
>>>>>> $ cp opts.cfg opts.cfg.new
>>>>>> cp: cannot create regular file `opts.cfg.new': Permission denied
>>>>>> $ ls -l opts.cfg*
>>>>>> -rw-rw-r-- 1 ???????? ???????? 98 Feb 14 11:17 opts.cfg
>>>>>> -rwxr--r-- 1 ???????? ???????? 0 Feb 15 16:01 opts.cfg.new*
>>>>>>
>>>>>> You'll note that the uid and gid is not correct.
>>> First, have you run mkpasswd and mkgroup to create valid /etc/passwd
>>> and /etc/group files? Without a valid user database, cygwin gets lost
>>> when trying to check/display/modify permissions of an unknown user.
>>>
>>> http://cygwin.com/cygwin-ug-net/using-utils.html#mkpasswd has more
>>> details on running mkpasswd.
>> I've run mkpasswd but the real question I believe is what domain should
>> I run mkpasswd for? As I stated above I have run it for the Windows
>> domain that I log into. However, again, my home directory is served by a
>> Linux box using Samba but that link box does not participate in the
>> Windows domain that I log into rather it just runs in it's own workgroup.
> Don't know if this is of any help: you can set the SIDs for the user 
> and the user's primary group on the Samba box with pdbedit ... -U 
> <SID> -G <SID> ...Maybe it helps if you use the same SIDs your Windows 
> Domain account has.
I'll have to ask the admin to try this. Thanks.


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