Comment 4 for bug 401971

I just uploaded now a new version to Debian sid which contains this bugfix.
But it's strange that grub-probe already failed to detect it as valid fat fs.
Could you plesae attach a dump of first 512 bytes of it?
You can get it with `sudo dd if=/dev/sda2 of=fat.bs count=1 bs=512'. It's in fat.bs then.
Maybe it helps if you would run dosfsck (in package dosfstools) or chkdsk on Windows over it.