Am 07.03.2014 07:49, schrieb Cao, Renzhi (MU-Student): > Now, for my problem, is there any way to repair that? Or you think I should reinstall my arch linux system? I am not a fan of reinstalling only to fix the system, but you should update more frequently ;) Chroot into your system, then look into /bin, /sbin and /usr/sbin, there shouldnt be any files. You can try then pacman -S filesystem Good luck!