Location of MySQL database migration in Ubuntu

Ubuntu downloads and migrates the MySQL database and changes the MYSQL location for your reference.

First, create the directory to which the database will be migrated

Mkdir/media/hdb1/db

Copy the original data in linux to the new directory.

Cp-dpR/var/lib/mysql/*/media/hdb1/db

Re-configure attributes for the new directory

Chown mysql: mysql/media/hdb1/db

Modify the file "/etc/apparmor. d/usr. sbin. mysqld"

Sudo vim/etc/apparmor. d/usr. sbin. mysqld

Set

/Var/lib/mysql r,
/Var/lib/mysql/** rwk,

Change

/Media/hdb1/db r,
/Media/hdb1/db/** rwk,

Modify directory

Sudo vim/etc/mysql/my. cnf

For example

Datadir =/var/mysql

Change

Datadir =/media/hdb1/db

Enable server again

Sudo/etc/init. d/apparmor restart sudo/etc/init. d/mysql restart

Success !!!!

Note: The "Location of MySQL database migration under Ubuntu" introduced in this article comes from the city without any limitations, and the article is slightly changed.