this is what control panel says when i try to start mysql
1:47:12 [mysql] Checking default ports...
1:47:12 [mysql] Attempting to start MySQL app...
1:47:12 [mysql] Executing ""c:\xampp\mysql\bin\mysqld.exe" --defaults-file="c:\xampp\mysql\bin\my.ini" --standalone --console"
1:47:12 [mysql] Return code: 0
1:47:13 [mysql] Status change detected: running
1:47:13 [mysql] Status change detected: stopped
1:47:13 [mysql] Error: MySQL shutdown unexpectedly.
1:47:13 [mysql] This may be due to a blocked port, missing dependencies,
1:47:13 [mysql] improper privileges, a crash, or a shutdown by another method.
1:47:13 [mysql] Press the Logs button to view error logs and check
1:47:13 [mysql] the Windows Event Viewer for more clues
1:47:13 [mysql] If you need more help, copy and post this
1:47:13 [mysql] entire log window on the forums
and this is the error log:
2016-06-21 01:47:13 a3c InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2016-06-21 1:47:13 2620 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2016-06-21 1:47:13 2620 [Note] InnoDB: The InnoDB memory heap is disabled
2016-06-21 1:47:13 2620 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2016-06-21 1:47:13 2620 [Note] InnoDB: Memory barrier is not used
2016-06-21 1:47:13 2620 [Note] InnoDB: Compressed tables use zlib 1.2.3
2016-06-21 1:47:13 2620 [Note] InnoDB: Using generic crc32 instructions
2016-06-21 1:47:13 2620 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2016-06-21 1:47:13 2620 [Note] InnoDB: Completed initialization of buffer pool
2016-06-21 1:47:13 2620 [Note] InnoDB: Highest supported file format is Barracuda.
2016-06-21 01:47:13 a3c InnoDB: Operating system error number 38 in a file operation.
InnoDB: Some operating system error numbers are described at
InnoDB: Operation read to file os\os0file.cc and at line 3158
2016-06-21 1:47:13 2620 [ERROR] InnoDB: File (unknown): 'read' returned OS error 238. Cannot continue operation
I think this can easily be fixed, but i don't know how to.
This is the story: i backed up my old "xampp" folder and installed xampp again, so i have all the files from my old databases, and all the information that i need to work with, so i tried deleting the default xampp "mysql/data/" folder and i replaced it with my old "data" folder.
Im not an expert with databases, so i dont think this is the correct way to "backup", but i couldn't find the way to do it. i guess someone here can help me.