I want to install the newest version of NITDroid for N9 - alpha 4. Previously I have installed alpha 1 and I must delete old version before install of the newest version. Unfortunately I can't delete all directories from old version, because "data" directory is damaged and it can't be deleted. "rm -rf <directory>" doesn't return any error, but it doesn't delete this directory. Graphical "Filebox" behaves similarly. mc in terminal returns error "Directory not empty (39)", however when I want to enter directory, it returns error "Can not read the contents of a directory". How to delete this directory?