Imho nothig could help you :-)

You see, that in M$-Fat filesystem there are only 4 file attributes as ArHive, REad OnLy, Hidden. So, unix has much more attributes for files - better say permissions. So it shows you all files on FAT that they are all executable. Phisycally, it has no space to save spe cial attributes that you want(666&777) For more info read about mount, cause maybe it's only my 'bred' & i can have been mistaken. StF

-o noexec

Ecли тебе нужно только убрать флаг исполнения пропиши в fstab в опциях noexec иначе попытайся mode=0666