RE: EXTERNAL SENDER: offline installation of cygwin is impossible

[Dale Lobb <Dale.Lobb@bryanhealth.org>]

  This works for me to make a local installation repository:

  All of the following assumes you have a working cygwin install on a machine that has internet access.

1. Create a Cygwin install directory and cd into it.  Download the latest Cygwin installer to this directory:

# mkdir Cygwin
# cd Cygwin
# wget --no-check-certificate https://www.cygwin.com/setup-x86_64.exe

2. Create an exclusions file.  This file should exclude any file types and whatever else you do not want in the new local repository. The following excludes source code and debug symbols:

# echo *-src.tar.*>  rsync_copy.exclusions
# echo *-debuginfo*>> rsync_copy.exclusions

3. Create a local repository mirror directory with syntax that matches one of the methods used for accessing an internet based Cygwin repository.  This should be under your Cygwin install directory.  Cd into the new directory. E.g.:

# mkdir ftp%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f
# cd ftp%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f

4. Use the rsync protocol (Actual rsync, not ssh) to download the data to your new local repository:

# rsync -av --progress rsync://mirrors.kernel.org/sourceware/cygwin/unsupported ./
# rsync -av --delete --exclude-from=../rsync_copy.exclusions --progress rsync://mirrors.kernel.org/sourceware/cygwin/noarch  ./
# rsync -av --delete --exclude-from=../rsync_copy.exclusions --progress rsync://mirrors.kernel.org/sourceware/cygwin/x86_64  ./

5. Copy the entire Cygwin tree you just created to a CD ISO or flash drive.  You now have a portable Cygwin installation.

Best Regards,

Dale Lobb


> -----Original Message-----
> From: Cygwin <cygwin-bounces+dale.lobb=bryanhealth.org@cygwin.com>
> On Behalf Of JEROME GALLIERE via Cygwin
> Sent: Monday, September 26, 2022 3:31 AM
> To: cygwin@cygwin.com
> Subject: EXTERNAL SENDER: offline installation of cygwin is impossible
>
> CAUTION: This email originated from outside of the organization. Do not
> click links or open attachments unless you recognize the sender.
>
>
> Hello,
>
>
>
> I need to install cygwin on some machine not connected to internet so I
> did everything I found over the internet on the subject.
>
> But despite I "download without installing" ALL packages from a normal
> machine (I got almost 20G) despite I transfert that to the non connected
> machines when trying to "Install from local directory" install it is just
> telling: "nothing to install/update" I tried any options and still the same.
>
> Does that really works recently? I asked recently because any articles I
> found on subject are years ago...
>
> Jérôme
>
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> --
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