1067 error on attempt to start MySQL

Question

I\'ve installed MySQL on Windows 7. When I\'m trying to start MySQL service I\'m getting error 1067: The process terminated unexpectedly. Log message:

101111         


        

Answer 1

I ran into the same errors. Similar approach for me. From what I can tell, there is something weird going on with the reference to the datadir in the my.ini file. Even when I manually edited it I could not seem to have any effect on it, until I blew EVERYTHING AWAY. Wish I had better news...do a DB backup first.

For me the key to getting this to work was:

1) Remove the previous installation from settings->control panel. Restart your machine.

2) Once machine comes back up, forcefully delete the previous installation directory. [mine is C:\apps\MySQL\MySQLServer-5.5\, as I REFUSE to use c:\program files\..]

3) Forcefully delete the previous datadir directory [mine was c:\data\mysql].

4) Forcefully delete the previous default data directory [C:\Documents and Settings\All Users\Application Data\MySQL].

5) Re-run the install, selected the same installation directory. Skip the instance configurator/wizard at the end of the install.

6) Make sure the ../bin directory gets added to the path. Verify it.

7) Manually run the instance configurator/wizard.
Set the root password, port [3306]. It will try to start it. Again, mine FAILED to start [duh! nothing new there!!!]

8) Now, manually edit the my.ini file in the install directory, and correct the datadir setting to be [datadir="C:/Data/MySQL/"] MATCH CAPITALIZATION !!!!

9) Verify the service is setup correctly via the command-prompt [sc qc mysql ].
Should look like:

C:\dev\cmdz>sc qc mysql

[SC] GetServiceConfig SUCCESS

SERVICE_NAME: mysql
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : "C:\apps\MySQL\MySQLServer-5.5\bin\mysqld" --defaults-file="C:\apps\MySQL\MySQLServer-5.5\my.ini" MySQL
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : MySQL
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

10) Copy the contents of the default data-directory created under C:\Documents and Settings\All Users\Application Data\MySQL [basically everything in this directory to your desired data directory c:\data\mysql]. Make sure you get the C:\Documents and Settings\All Users\Application Data\MySQL\mysql directory. This has host.frm file, and others.
You should end up with a directory now of c:\data\MySQL\mysql...

11) Rename the default directory C:\Documents and Settings\All Users\Application Data\MySQL To C:\Documents and Settings\All Users\Application Data\MySQLxxx So it cannot find it...

12) Say a quick prayer...

13) Give it a kick start from command line with [net start mysql]

That got it working for me...

Best of Luck!