Hi I tried to install MariaDB 10.0.0 on Windows XP, MSI package. Apparently the installation worked, but the server fails to start. I paste here the log until the first shutdown, just in case you don't know about this problem. Federico 130124 10:49:47 InnoDB: The InnoDB memory heap is disabled 130124 10:49:47 InnoDB: Mutexes and rw_locks use Windows interlocked functions 130124 10:49:47 InnoDB: Compressed tables use zlib 1.2.3 130124 10:49:47 InnoDB: CPU does not support crc32 instructions 130124 10:49:47 InnoDB: Initializing buffer pool, size = 128.0M 130124 10:49:47 InnoDB: Completed initialization of buffer pool InnoDB: The first specified data file .\ibdata1 did not exist: InnoDB: a new database to be created! 130124 10:49:47 InnoDB: Setting file .\ibdata1 size to 10 MB InnoDB: Database physically writes the file full: wait... 130124 10:49:47 InnoDB: Log file .\ib_logfile0 did not exist: new to be created InnoDB: Setting log file .\ib_logfile0 size to 5 MB InnoDB: Database physically writes the file full: wait... 130124 10:49:48 InnoDB: Log file .\ib_logfile1 did not exist: new to be created InnoDB: Setting log file .\ib_logfile1 size to 5 MB InnoDB: Database physically writes the file full: wait... 130124 10:49:48 InnoDB: Doublewrite buffer not found: creating new 130124 10:49:48 InnoDB: Doublewrite buffer created 130124 10:49:49 InnoDB: 128 rollback segment(s) are active. InnoDB: Creating foreign key constraint system tables InnoDB: Foreign key constraint system tables created 130124 10:49:49 InnoDB: Waiting for the background threads to start 130124 10:49:49 InnoDB: 1.2.0 started; log sequence number 0 130124 10:49:49 [Note] Plugin 'FEEDBACK' is disabled. 130124 10:49:56 InnoDB: FTS optimize thread exiting. 130124 10:49:56 InnoDB: Starting shutdown... 130124 10:49:58 InnoDB: Shutdown completed; log sequence number 1602824 130124 10:50:00 InnoDB: The InnoDB memory heap is disabled 130124 10:50:00 InnoDB: Mutexes and rw_locks use Windows interlocked functions 130124 10:50:00 InnoDB: Compressed tables use zlib 1.2.3 130124 10:50:00 InnoDB: CPU does not support crc32 instructions 130124 10:50:01 InnoDB: Initializing buffer pool, size = 31.0M 130124 10:50:01 InnoDB: Completed initialization of buffer pool 130124 10:50:01 InnoDB: Log file .\ib_logfile0 did not exist: new to be created InnoDB: Setting log file .\ib_logfile0 size to 31 MB InnoDB: Database physically writes the file full: wait... 130124 10:50:02 InnoDB: Log file .\ib_logfile1 did not exist: new to be created InnoDB: Setting log file .\ib_logfile1 size to 31 MB InnoDB: Database physically writes the file full: wait... 130124 10:50:03 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130124 10:50:03 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130124 10:50:03 InnoDB: 128 rollback segment(s) are active. 130124 10:50:03 InnoDB: Waiting for the background threads to start 130124 10:50:03 InnoDB: 1.2.0 started; log sequence number 1603084 130124 10:50:03 [Note] Plugin 'FEEDBACK' is disabled. 130124 10:50:03 [Note] Event Scheduler: Loaded 0 events 130124 10:50:03 [Note] C:\Programmi\MariaDB 10.0\bin\mysqld.exe: ready for connections. Version: '10.0.0-MariaDB' socket: '' port: 3306 Source distribution 130124 11:03:13 InnoDB: The InnoDB memory heap is disabled 130124 11:03:13 InnoDB: Mutexes and rw_locks use Windows interlocked functions 130124 11:03:13 InnoDB: Compressed tables use zlib 1.2.3 130124 11:03:13 InnoDB: CPU does not support crc32 instructions 130124 11:03:13 InnoDB: Initializing buffer pool, size = 128.0M 130124 11:03:13 InnoDB: Completed initialization of buffer pool InnoDB: Error: log file .\ib_logfile0 is of different size 32505856 bytes InnoDB: than specified in the .cnf file 5242880 bytes! 130124 11:03:14 [ERROR] Plugin 'InnoDB' init function returned error. 130124 11:03:14 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 130124 11:03:15 [Note] Plugin 'FEEDBACK' is disabled. 130124 11:03:16 [ERROR] Unknown/unsupported storage engine: InnoDB 130124 11:03:16 [ERROR] Aborting 130124 11:03:17 [Note] C:/Programmi/MariaDB 10.0/bin/mysqldd: Shutdown complete