After Copying Mysql table data files manually mysql service not running

If you got the problem After Copying Mysql table data files manually MySQL service not running then check owner of copied files, to work MySQL the owner must be MySQL

mysql data folder in linux /var/lib/mysql

root/backup# cp databasefolder /var/lib/mysql
root# chown mysql.mysql  databasefolder
root# cd  databasefolder
root/databasefolder# chown mysql.mysql *