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Date: Mon, 14 Jun 2010 10:09:33 -0500
From: Jeremy Bopp <jeremy AT bopp DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: AW: [bulk] - Re: Question on setup.exe
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Please keep to the Cygwin list so that everyone can benefit from our
conversation. :-)

On 6/14/2010 9:51 AM, DEWI - N. Zacharias wrote:
> 
> Hi Jeremy,
> 
> thanks for your quick response.
> 
> 
>> Von: Jeremy Bopp []
>> Gesendet: Montag, 14. Juni 2010 16:32
>> An: xxxxxx AT xxxxxx DOT xxx
>> Betreff: [bulk] - Re: Question on setup.exe
>>
>> On 6/14/2010 9:20 AM, DEWI - N. Zacharias wrote:
>>>
>>> Hi there,
>>>
>>> assume I had a cygwin installation on one computer with the local package
>> directory located in c:\mylocalpackage.
>>>
>>> Is it possible to copy this directory to a other  computer  and use the -L flag
>> (local install) to install a identical copy of my Cygwin installation without  access
>> to the net ??(because the content of the local package dir constist of dirs
>> corresponding to the Cygwin mirrors)
>>
>> Yes, that is possible.  Just be aware that the second computer will only
>> be able to install whatever packages were downloaded to the first
>> computer.  The local package directory is not a complete mirror.
> 
> Thanks for the hint. But I assume that it is possible to update or install additional packages if one had access to the internet. Right ??

Yes, if the computer has Internet access, it can download and install
new packages in addition to newer versions of the packages which may
already exist in the local package directory.  During the setup process,
select to install from the Internet while pointing to the existing local
package directory.  Setup will use the contents of the local package
directory when those contents are current and complete enough and will
update the local package directory from the Internet when they are not.

The local package directory is just a cache used to avoid repeatedly
downloading the same files.  By copying a local package directory to
another computer, you are effectively priming that computer's cache, but
as with any cache, its data can be invalidated and updated.

In the end, your questions could also be answered by trying to do what
you want to do and seeing what happens. :-)

-Jeremy

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