我正在尝试将一个mysql数据库从一个旧的驱动器迁移到一个ubuntu 16.04服务器上，该驱动器将fedora9（它不再启动了）。
我将/ var / lib / mysql文件夹从旧系统复制到新系统中的/ testdb / mysql。
我将所有者更改为mysql：mysql到新文件夹并将my.conf的datadir更新到这个新文件夹，但是mysql服务器不再启动了。我收到以下错误：
170625 12:44:37 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
170625 12:44:37 [Note] Plugin 'FEDERATED' is disabled.
/usr/sbin/mysqld: Table 'mysql.plugin' doesn't exist
170625 12:44:37 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
170625 12:44:37 InnoDB: The InnoDB memory heap is disabled
170625 12:44:37 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170625 12:44:37 InnoDB: Compressed tables use zlib 1.2.8
170625 12:44:37 InnoDB: Using Linux native AIO
170625 12:44:37 InnoDB: Initializing buffer pool, size = 128.0M
170625 12:44:37 InnoDB: Completed initialization of buffer pool
170625 12:44:37 InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation call: 'open'.
InnoDB: Cannot continue operation.
170625 12:44:38 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
170625 12:44:38 [Note] Plugin 'FEDERATED' is disabled.
/usr/sbin/mysqld: Table 'mysql.plugin' doesn't exist
170625 12:44:38 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
170625 12:44:38 InnoDB: The InnoDB memory heap is disabled
170625 12:44:38 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170625 12:44:38 InnoDB: Compressed tables use zlib 1.2.8
170625 12:44:38 InnoDB: Using Linux native AIO
170625 12:44:38 InnoDB: Initializing buffer pool, size = 128.0M
170625 12:44:38 InnoDB: Completed initialization of buffer pool
170625 12:44:38 InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation call: 'open'.
InnoDB: Cannot continue operation.
170625 12:44:38 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
170625 12:44:38 [Note] Plugin 'FEDERATED' is disabled.
/usr/sbin/mysqld: Table 'mysql.plugin' doesn't exist
170625 12:44:38 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
170625 12:44:38 InnoDB: The InnoDB memory heap is disabled
170625 12:44:38 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170625 12:44:38 InnoDB: Compressed tables use zlib 1.2.8
170625 12:44:38 InnoDB: Using Linux native AIO
170625 12:44:38 InnoDB: Initializing buffer pool, size = 128.0M
170625 12:44:38 InnoDB: Completed initialization of buffer pool
170625 12:44:38 InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation call: 'open'.
InnoDB: Cannot continue operation.
我尝试将所有权限，甚至777更改为所有文件（仅限于尝试），但始终具有相同的结果。
如何恢复数据库？
答案 0 :(得分：0)
我终于找到了恢复表的方法，并没有改变my.conf中的datadir（它不起作用，甚至复制默认数据库的内容工作正常），我复制了我想要的文件夹恢复到默认datadir，覆盖除mysql.sock和mysql文件夹之外的所有文件。 然后我启动了mysql服务器并且它可以工作，但是有些表应该用
修复mysqlcheck --repair --all-databases -u root -p
现在一切正常