1.7.7 on Windows 7: can't write to removable disk

Andrey Repin anrdaemon@freemail.ru
Fri Feb 22 10:50:00 GMT 2013

Greetings, Larry Hall (Cygwin)!

>> I am curious if this patch was included in the live build of cygwin.  I use
>> dd for archiving and making new copies of floppy disks from images, and I
>> can no longer do that in Windows 7.  I, too, get the error message:
>> "dd: writing to /dev/fd0: Permission denied"

> Cygwin 1.7.7 is very old and the thread you reference is over 2 years
> old.  The current version of Cygwin is 1.7.17.  If you're not up-to-date,
> try updating.  If you are and you're having problems, please read and
> follow the problem reporting guidelines found at the link below for
> any follow-up to this list.

The error itself is not specific to cygwin version, and a clue is expressed by
the author: Win7. Unless you have disabled UAC, it will prevent direct access
to devices, unless the program run as super-user.
This also applies to removable media formatted as NTFS, in some circumstances.
Stumbled upon this myself yesterday. Forgot to bring my flash disk, and had to
use cased HDD containing a mirror of my tools "just in case". The HDD was
formatted in NTFS, and I were unable to access many files, until I restarted
my file manager as super-user.

Andrey Repin (anrdaemon@freemail.ru) 22.02.2013, <14:40>

Sorry for my terrible english...

Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

More information about the Cygwin mailing list