Same thing done the other way....... There is a catch in it though... Before executing it, you need to have Windows partition mounted at /mnt/winc, right?? Now, while loading the bootloader you don't know of any filesystem tree. Then where will "winc" be mounted??? Only after booting into linux will you be able to access /mnt - unless of course it is onto a different partition. But again, it would be better if you use the device name + partition no. combination instead of *nix filesystem specifics.