I'm having problem to use this command under windows
dd if=*file* of=/dev/sdx bs=512 seek=2 conv=fsync
Using cygwin shell:
$ dd if=file of=/cygdrive/f bs=512 seek=2 conv=fsync
dd: failed to open ‘/cygdrive/f’: Is a directory
F: is the letter where my SD Card is mapped. What's the way to access it?
I never did find a good way to explicitly map a windows drive to a Cygwin drive but I did find a great alternate way to solve the problem/use dd on a windows machine.
dd is actually part of the package installed/shipped with Git for Windows. Once that is installed/unzipped if using the portable version you can find the binary in C:\Program Files\Git\usr\bin\dd.exe
The hardware mapping equivalent for if/of setting is written in the notation \.\DEVICENAME0 and can be found by running this PowerShell command (as-written also returns sector size)
Get-WmiObject Win32_diskdrive | select Caption,DeviceID,BytesPerSector,InterfaceType,Size