Setup's local package directory on network share

Thomas Wolff
Sun Nov 5 22:22:00 GMT 2017

Am 02.11.2017 um 16:14 schrieb Andrey Repin:
> Greetings, Aaron Digulla!
>> I would like to share the local package cache with other people.
>> When browse folders in the respective page in setup.exe, no network shares are visible.
>> When I manually enter the path (using a mapped drive), I get a dialog:
>> "Directory S:\cygwin\Downloads does not exist, would you like me to create
>> it?" which is wrong since the folder exists.
> No, it isn't wrong, since you are using mapped drive, which may not exist in a
> different user session.
You could also avoid switching the user with setup --no-admin.
Same problem if the installation target (the cygwin root) is on a 
network drive.

> There's an easy solution, though: stop using mapped drives. You should have
> been, for 17 years now.
>> When I click "yes", I get an error "Couldn't create directory. Is drive full or read-only?"
>> I can create a folder (and delete it) from Explorer, so it's not a Windows permission problem.
>> What is the problem here? I searched the documentation and it mentions a
>> couple of problems with network shares and Windows authentication but that when Cygwin is already running.
> Store setup.exe on the same network share and use UNC path to access it.
> Then "other people" could use both a fresh package cache and a fresh setup.exe
> together.
> You can even restrict write access to the share, if desired, then "other
> people" could use it to install from downloaded archives, and selected
> administrators with write access could refresh package archive.

Problem reports:
Unsubscribe info:

More information about the Cygwin mailing list