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Date: Mon, 2 Mar 2015 19:56:40 +0300
From: Andrey Repin <anrdaemon@yandex.ru>
Reply-To: cygwin@cygwin.com
Message-ID: <339865245.20150302195640@yandex.ru>
To: "U-leila\\vzell" <vzell@volkerzell.de>, cygwin@cygwin.com
Subject: Re: cygwin installation on a synology NAS drive
In-Reply-To: <vrivh9u3sbml.fsf@leila.volkerzell.de>
References: <vrivh9u3sbml.fsf@leila.volkerzell.de>
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Greetings, U-leila\vzell!

> I created a shared folder on a Synology NAS and mapped it to a Windows 7
> host system. Both Windows 7 and Synology NAS have the same named user
> account (part of admin groups). The named user has full access to the
> shared folder on the NAS side.

> I then tried installing latest cygwin versions (x86/x64) on the mapped
> drive (at the root filesystem) but got permissions errors from setup.exe

> Setup was actually able to create the cygwin directory structure but
> could not write to the log file.

> Creating directories/files and writing to files is no problem with
> windows tools on the mapped drive.

> Anybody else tried this setup or knows what's going on here ? Or is a
> cygwin installation on a NAS not supported ? 

Have you authorized admin session on NAS before starting setup?
Setup by default request elevation and that change all authorization context
of the application. Even mapped drive letters are different for elevated
process.
Can you try to start elevated cmd.exe, make sure you have correct maps/write
access to  destination directory in there and start setup.exe from it?


--
WBR,
Andrey Repin (anrdaemon@yandex.ru) 02.03.2015, <19:52>

Sorry for my terrible english...


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