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From: Tomas =?utf-8?q?=C3=85kesson?= <tomas AT datasupporten DOT se>
To: cygwin AT cygwin DOT com
Subject: Re: 1.7.7 on Windows 7: can't write to removable disk
Date: Wed, 12 Jan 2011 11:18:35 +0100
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Tuesday the 11 January 2011 15.55.50 Corinna Vinschen wrote:
> On Jan 11 15:51, Corinna Vinschen wrote:
> > On Jan 10 10:40, tomas AT datasupporten DOT se wrote:
> > > Hello.
> > > I'm trying to write a disk image to a compact flash card with dd, but I
> > > get the error:
> > > "dd: writing to /dev/sdj: Permission denied"
> > > 
> > > Apart from the CF-card, I also tried a USB-stick with the same results.
> > > I'm logged in as administrator.
> > 
> > Please have a look into http://support.microsoft.com/kb/942448 first.
> > 
> > [...listening "De-Loused In The Comatorium" while waiting...]
> > 
> > Finished reading?  Ok.
> > 
> > That's quite a serious restriction starting with Vista.  If I destroy the
> > filesystem on one of my sd cards under Linux, I can then overwrite it
> > with dd under Cygwin.  However, if that dd call created a valid
> > filesystem on the sd card, the next write fails again.  For some reason
> > it does not help to unmount the filesystem on the drive via the "Disk
> > Management" MMC snap-in, despite the claim in the aforementioned
> > article.
> > 
> > The solution I just checked in to Cygwin is rather complicated, but
> > I really tested this a couple of hours now, and I didn't find any
> > other solution.
> 
> I forgot the disclaimer:
> 
>   Please test the next developer snapshot from http://cygwin.com/snapshots/


Thanks for the info. If I get the time I'll try the snapshot. For now I've got 
a workaround (using Linux).

Tomas

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