# Take Database Dump
wget https://raw.githubusercontent.com/MiteshShah/admin/master/backup/mysqldump.sh
bash mysqldump.sh
# Cross check database dump
ls /var/www/mysqldump
mkdir -p /backup/mysql/data
service mysql stop
cp -av /etc/mysql /backup
cp -av /var/www/mysqldump /backup/mysql
cp -av /var/lib/mysql/ /backup/mysql/data
apt-get purge mysql-server*
apt-get autoremove
ee stack install mysql
apt-get update
apt-get install pv
cd /var/www/mysql
gunzip *
pv example_com.13Oct2014142434 | mysql example_com
In any case you can face some issue, you can revert it using following commands:
ee stack purge mysql
apt-get install mysql-server
cd /var/www/mysqldump
gunzip * pv example_com.13Oct2014142434 | mysql example_com