diff --git a/sql/handler.cc b/sql/handler.cc
index afb88dc962d..7fc4e5e12b0 100644
--- a/sql/handler.cc
+++ b/sql/handler.cc
@@ -1392,6 +1392,25 @@ bool ha_flush_logs(handlerton *db_type)
   return FALSE;
 }
 
+static const char *check_lowercase_names(handler *file, const char *path,
+                                         char *tmp_path)
+{
+  if (lower_case_table_names != 2 || (file->ha_table_flags() & HA_FILE_BASED))
+    return path;
+
+  /* Ensure that table handler get path in lower case */
+  if (tmp_path != path)
+    strmov(tmp_path, path);
+
+  /*
+    we only should turn into lowercase database/table part
+    so start the process after homedirectory
+  */
+  my_casedn_str(files_charset_info, tmp_path + mysql_data_home_len);
+  return tmp_path;
+}
+
+
 /** @brief
   This should return ENOENT if the file doesn't exists.
   The .frm file will be deleted only if we return 0 or ENOENT
@@ -1415,13 +1434,7 @@ int ha_delete_table(THD *thd, handlerton *table_type, const char *path,
       ! (file=get_new_handler((TABLE_SHARE*)0, thd->mem_root, table_type)))
     DBUG_RETURN(ENOENT);
 
-  if (lower_case_table_names == 2 && !(file->ha_table_flags() & HA_FILE_BASED))
-  {
-    /* Ensure that table handler get path in lower case */
-    strmov(tmp_path, path);
-    my_casedn_str(files_charset_info, tmp_path);
-    path= tmp_path;
-  }
+  path= check_lowercase_names(file, path, tmp_path);
   if ((error= file->delete_table(path)) && generate_warning)
   {
     /*
@@ -2598,15 +2611,7 @@ int ha_create_table(THD *thd, const char *path,
   if (update_create_info)
     update_create_info_from_table(create_info, &table);
 
-  name= share.path.str;
-  if (lower_case_table_names == 2 &&
-      !(table.file->ha_table_flags() & HA_FILE_BASED))
-  {
-    /* Ensure that handler gets name in lower case */
-    strmov(name_buff, name);
-    my_casedn_str(files_charset_info, name_buff);
-    name= name_buff;
-  }
+  name= check_lowercase_names(table.file, share.path.str, name_buff);
 
   error= table.file->create(name, &table, create_info);
   VOID(closefrm(&table, 0));
@@ -2656,7 +2661,8 @@ int ha_create_table_from_engine(THD* thd, const char *db, const char *name)
     frmblob and frmlen are set, write the frm to disk
   */
 
-  (void)strxnmov(path,FN_REFLEN-1,mysql_data_home,"/",db,"/",name,NullS);
+  (void)strxnmov(path,FN_REFLEN-1,mysql_data_home,FN_ROOTDIR,
+                 db,FN_ROOTDIR,name,NullS);
   // Save the frm file
   error= writefrm(path, frmblob, frmlen);
   my_free(frmblob, MYF(0));
@@ -2677,12 +2683,7 @@ int ha_create_table_from_engine(THD* thd, const char *db, const char *name)
   update_create_info_from_table(&create_info, &table);
   create_info.table_options|= HA_OPTION_CREATE_FROM_ENGINE;
 
-  if (lower_case_table_names == 2 &&
-      !(table.file->ha_table_flags() & HA_FILE_BASED))
-  {
-    /* Ensure that handler gets name in lower case */
-    my_casedn_str(files_charset_info, path);
-  }
+  check_lowercase_names(table.file, path, path);
   error=table.file->create(path,&table,&create_info);
   VOID(closefrm(&table, 1));
 
diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index 6452ea2e77e..7fb60bd8a7e 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -1601,6 +1601,7 @@ extern int creating_table;    // How many mysql_create_table() are running
 */
 
 extern time_t server_start_time;
+extern uint mysql_data_home_len;
 extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
 	    mysql_real_data_home[], *opt_mysql_tmpdir, mysql_charsets_dir[],
             def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 8442d67515b..9b890dd4ff7 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -491,6 +491,7 @@ key_map key_map_full(0);                        // Will be initialized later
 
 const char *opt_date_time_formats[3];
 
+uint mysql_data_home_len;
 char mysql_data_home_buff[2], *mysql_data_home=mysql_real_data_home;
 char server_version[SERVER_VERSION_LENGTH];
 char *mysqld_unix_port, *opt_mysql_tmpdir;
@@ -3770,6 +3771,7 @@ int main(int argc, char **argv)
   mysql_data_home= mysql_data_home_buff;
   mysql_data_home[0]=FN_CURLIB;		// all paths are relative from here
   mysql_data_home[1]=0;
+  mysql_data_home_len= 2;
 
   if ((user_info= check_user(mysqld_user)))
   {
@@ -7056,6 +7058,7 @@ static void mysql_init_variables(void)
 	  sizeof(mysql_real_data_home)-1);
   mysql_data_home_buff[0]=FN_CURLIB;	// all paths are relative from here
   mysql_data_home_buff[1]=0;
+  mysql_data_home_len= 2;
 
   /* Replication parameters */
   master_user= (char*) "test";
@@ -7217,6 +7220,7 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
     /* Correct pointer set by my_getopt (for embedded library) */
     mysql_data_home= mysql_real_data_home;
+    mysql_data_home_len= strlen(mysql_data_home);
     break;
   case 'u':
     if (!mysqld_user || !strcmp(mysqld_user, argument))