网上很多方法都是:/usr/local/mysql/scripts/mysql_install_db --user=mysql
但是很有可能报错,找不到bin目录中的my_print_defaults
 错误信息: 
 FATALERROR:Couldnotfind./bin/my_print_defaults
 If you are using a binary release, you must run this script from
 within the directory the archive extracted into. If you compiled
 MySQL yourself you must run 'make install' first. 
 或
 [root@bogon scripts]# /usr/local/mysql/scripts/mysql_install_db --user=mysql&
 [1] 16874
 [root@bogon scripts]#
 FATAL ERROR: Could not find ./bin/my_print_defaults
 If you compiled from source, you need to run 'make install' to
 copy the software into the correct location ready for operation.
 If you are using a binary release, you must either be at the top
 level of the extracted archive, or pass the --basedir option
 pointing to that location.
  解决方法:
 [root@bogon scripts]# /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data &(这点非常重要)
转载于:https://blog.51cto.com/bensonzbs/1089764