Directory lookup for the file "xxx.mdf" failed with the operating system error 2(系统找不到指定的文件。).
reason：
sql2005以后 禁用了xp_cmdshell存储过程
solution：
sp_configure ‘show advanced options‘, 1
GO
RECONFIGURE
GO
sp_configure ‘xp_cmdshell‘, 1
GO
RECONFIGURE
GO
Directory lookup for the file "xxx.mdf" failed with the operating system error 2
原文：http://www.cnblogs.com/faeriesoft/p/4238538.html