Installed in the centos6.5 hisi3531A cross compiler, compiled a program, at the same time the centos mount a directory to the directory board (the board chip is hisi3531A), but in the board up and running, always fail, prompt "Read - only file system", is currently the root user on board, the program file at the same time I also add the executable permissions, and also change the permissions to 777 cannot run, or hint "Read - only file system", which has a great god met this kind of situation? Please some directions!