没有root权限的mysql

Question

如何在没有root特权/对工具区域没有写访问权限的情况下启动mysql？ 我收到以下错误

host13:~/JS> mysqld start
160706 18:06:31 [Warning] Can't create test file /tool/p64/.package/mysql-5.5.21/data/host13.lower-test
160706 18:06:31 [Warning] Can't create test file /tool/p64/.package/mysql-5.5.21/data/host13.lower-test
mysqld: Table 'mysql.plugin' doesn't exist
160706 18:06:31 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
160706 18:06:31 InnoDB: The InnoDB memory heap is disabled
160706 18:06:31 InnoDB: Mutexes and rw_locks use GCC atomic builtins
160706 18:06:31 InnoDB: Compressed tables use zlib 1.2.3
160706 18:06:31 InnoDB: Initializing buffer pool, size = 128.0M
160706 18:06:31 InnoDB: Completed initialization of buffer pool
160706 18:06:31  InnoDB: Operating system error number 30 in a file operation.
InnoDB: Error number 30 means 'Read-only file system'.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.5/en/operating-system-error-codes.html
InnoDB: File name ./ibdata1
InnoDB: File operation call: 'create'.
InnoDB: Cannot continue operation.

Answer 1

您可以将MySQL数据目录移动到您可以写的位置，然后在/etc/my.cnf指定它（或根据系统默认值在另一个位置），参数为datadir 。

如果您的数据目录尚未初始化（在这种情况下， mysqld将抱怨缺少特权表），则可以这样创建它们：

mysql_install_db --datadir=$path_to_new_datadir

Answer 2

总结答案：

# Setup DB
mysql_install_db --datadir=<FULL PATH TO STORE DB FILES> 

# Start server
mysqld --datadir=<FULL PATH TO STORE DB FILES> 

# Shutdown server
mysqladmin -u root shutdown

笔记：
1. datadir之后的= ，否则，该命令将失败
2.应使用完整路径