mysql> create tablespace ger_space add datafile '/GeneralTest/ger_space.ibd' file_block_size=8192;
ERROR 3121 (HY000): CREATE TABLESPACE data file must be in one of these directories './'.
mysql> 

我之前创建了/GeneralTest

chown mysql.mysql /GeneralTest

例如

drwxr-xr-x 3 mysql mysql 4096 5月 15 11:32 GeneralTest

[root@test_dan /]# pwd
/