yonkeltron@Akiba:~$ chmod -r 777 /media/WD\ Passport/backup/
chmod: cannot access `777': No such file or directory
chmod: changing permissions of `/media/WD Passport/backup/': Operation not permitted
yonkeltron@Akiba:~$ sudo chmod -r 777 /media/WD\ Passport/backup/
chmod: cannot access `777': No such file or directory
chmod: changing permissions of `/media/WD Passport/backup/': Operation not permitted