什么是 UUID

出自Guoshuang Wiki

简单地说，UUID跟硬盘分区走，而不是前后顺序。

It's a Universally Unique IDentifier, standardized by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE). A UUID consists of 32 hexadecimal digits, displayed in 5 groups separated by hyphens, for a total of 36 characters. For example:

  550e8400-e29b-41d4-a716-446655440000 

http://linuxmint.com/wiki/index.php/UUID_-what_is_it_and_why_is_it_a_problem http://en.wikipedia.org/wiki/Uuid