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From:	Stephen John Smoogen <smooge AT gmail DOT com>
Date:	Wed, 7 Dec 2016 13:48:13 -0500
Message-ID:	<CANnLRdgjY5oQF1hLE75tg_b4ut881PFp+=uWB6jtN1-ya7sf2w@mail.gmail.com>
Subject:	Re: permission question
To:	cygwin AT cygwin DOT com
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On 7 December 2016 at 13:22, Greg Freemyer <greg DOT freemyer AT gmail DOT com> wrote:
> On Wed, Dec 7, 2016 at 10:47 AM, Greg Freemyer <greg DOT freemyer AT gmail DOT com> wrote:
>> I have a USB drive with 100,000's of thousands of files I put on it
>> from one PC.  I've built that dataset up over a couple years.
>>
>> I moved the USB drive to a different PC and I'm trying to rsync it to
>> another drive.
>>
>> 99.9% of the data seems to have made its way from one drive to the other.
>>
>> But I got a few permission denied messages when reading files off of
>> the source drive.
>>
>> I really don't need anything but the equivalent of 666 permissions for
>> the source drive files.
>>
>> I know linux well, but I have screwed up Windows permissions once too often.
>>
>> Is there a command I should run in Windows or cygwin to grant my user
>> read/write permission to all of the files?
>>
>> Or I can parse the rsync log file I created and look for the handful
>> of files that failed with permission denied.
>>
>> Thanks
>
> It's worst than I thought.
>
> I used rsync -avP to make the copy of the folders / files.   (Its
> 2.5TB, so it took all day yesterday to run).
>
> I'm trying now to use "rsync -cvr" to compare the checksums of the
> source / destination and re-copy any that got corrupted.
>
> The trouble is lots of the destination files can't be read due to
> permission issues, so the compare doesn't match and the rsync is
> copying the same files again.
>
> I admit to having little understanding of the Windows / cygwin
> permissions integration.  Or even Windows permissions standalone.  I
> do understand Linux permissions well.
>
> I'm tempted to just do a "chmod 755 -R .", but I've just had too many
> windows permission issues in the last year to start trying things
> without guidance.

That would probably make things worse. I believe that Windows
permissions are like attribs in Linux (which moves it into witchcraft
and sorcery). For dealing with this sort of issue I would look at
using the xcopy that Glenn from dell mentioned.

> Greg
>
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-- 
Stephen J Smoogen.

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