Mysql: InnoDB: Unable to Continue

Question

I installed mysql on a Windows 7 environment. When I try to start the server from the as command line: mysqld --user = root

I get the following message:

120914 15:47:04 [Warning] Can't create test file C:\Program Files\MySQL\MySQL Server 5.5\data\SFO1502128830A.lower-test 120914 15:47:04 [Warning] Can't create test file C:\Program Files\MySQL\MySQL Server 5.5\data\SFO1502128830A.lower-test 120914 15:47:04 [Note] Plugin 'FEDERATED' is disabled. 120914 15:47:04 InnoDB: The InnoDB memory heap is disabled 120914 15:47:04 InnoDB: Mutexes and rw_locks use Windows interlocked functions 120914 15:47:04 InnoDB: Compressed tables use zlib 1.2.3 120914 15:47:04 InnoDB: Initializing buffer pool, size = 128.0M 120914 15:47:04 InnoDB: Completed initialization of buffer pool 120914 15:47:04 InnoDB: Operating system error number 5 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. It may also be you have created a subdirectory InnoDB: of the same name as a data file. InnoDB: File name .\ibdata1 InnoDB: File operation call: 'create'. InnoDB: Cannot continue operation. 

I ask for advice, Thank you,

Answer 1

Try the following: Launch Windows CMD Prompt as an administrator and run the MySql command.