Ubuntu之sudoers（转）usermod 用法导致sudo不能用

引用:

Arch Linux is optimized for i686 and x86_64 processors and therefore will not run on any lower or incompatible generations of x86 CPUs (i386, i486 or i586). A Pentium Pro, Pentium II or AMD Athlon (K7) processor or higher is required. (technically, cpu's without the cmov instruction such as AMD K6 and via C3 are also i686, but we use gcc and it uses cmov instructions) Before installing Arch Linux, you should decide which installation method you would like to use.