MySQL: how to install on ubuntu linux mysql without synaptic or apt

We download the tar.gz from the mysql site www.mysql.com place it in /usr/local unpack the tar.gz with the command

tar -xzf mysql-5.1.31-linux-i686-glibc23.tar.gz

(we have assumed from a real case that the version is 5.1.31, in which case the file name is mysql-5.1.31-linux-i686-glibc23.tar.gz) we create the mysql symlink

ln -s mysql-5.1.31-linux-i686-glibc23 mysql

create users/groups

groupadd mysql
useradd -g mysql mysql

initialise the db

cd mysql
./scripts/mysql_install_db --user=mysql

we add the necessary permissions to the directories

chown -R root:mysql .
chown -R mysql:mysql data

start the mysql daemon in the background with the command

./bin/mysqld_safe --user=mysql &

we configure the environment variables in /root/.bashrc (or in your home) add the lines

MYSQL=/usr/local/mysql
export MYSQL
PATH=$MYSQL/bin:.:$PATH
export PATH

we also add the lines in /etc/init.d/bootmisc.sh to handle the automatic start-up of the mysql service

MYSQL=/usr/local/mysql
export MYSQL
PATH=$MYSQL/bin:.:$PATH
export PATH

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