Ubuntu manually installing MySQL

Download the installation package from the official website MySQL :: Download MySQL Community Server

Unzip to /usr/local Under the table of contents , Rename it to mysql

Then input the following command at the terminal ：

shell> groupadd mysql

shell> useradd -r -g mysql mysql
shell> cd /usr/local
shell> cd mysql
shell> chown -R mysql . （ Don't forget the last point , The same below ）

shell> chgrp -R mysql .

shell> scripts/mysql_install_db --user=mysql

If an error is reported after this sentence is executed ：

scripts/mysql_install_db: 244: ./bin/my_print_defaults: not found
Neither host 'ubuntu' nor 'localhost' could be looked up with
./bin/resolveip
Please configure the 'hostname' command to return a correct
hostname.
If you want to solve this at a later stage, restart this script
with the --force option

Input... At the terminal uname -a Command to view the system version , If the result is x86_64 It means that the system is 64 Bit , Did you download the wrong installation package ？ Download it on the official website 64 A version of the , Unzip it to mysql Delete the table of contents , Re execute the above statement

If you report an error again ：./bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

That means there's something missing , Execute the following command ：

sudo apt-get install libaio-dev

Execute after installation scripts/mysql_install_db --user=mysql This statement

Continue to execute subsequent commands ：

shell> chown -R root .

shell> chown -R mysql data

Okay , Start below ：

sudo ./support-files/mysql.server start

# /usr/local/mysql/bin/mysqld_safe --user=mysql &

cd /usr/local/mysql/bin // Get into bin Catalog

#mysql // function mysq command

If it doesn't start Or appear Can't connect to local MySQL server through socket '/tmp/mysql.sock'

resolvent : #cd /usr/local/mysql/support-files // Enter this directory

#./mysql.server start // Start it up You can generate /tmp/mysql.sock

If /tmp/mysql.sock No such file exists , And mysql Is in Open state ？

resolvent ： #netstat -an | grep 3306 // see 3306 port

#ps -ef | grep mysql // lookup mysql process

# kill -9 Process number // Mandatory deletion mysql The process number of

#./mysql.server start // Start it up You can generate /tmp/mysql.sock

If the number is the same in any path mysql What can I do without the command ？

resolvent ： modify /etc/profile file Add to the file

PATH=$PATH:/usr/local/mysql/bin/

export PATH ( Save to exit execution source /etc/profile)

The above operations are completely OK Execute... In any directory # mysql command

If you want to execute service mysql start or restart stop What to do with the order ？ Can't be old #./mysql.server start

resolvent ： take mysql.server Make a copy to /etc/rc.d/init.d I'll change my name mysql or Create a connection file

Suppose the current directory is /etc/rc.d/init.d

Such as ： #cp /usr/local/mysql/support-files/mysql.server mysql （ Copy ）

or ： #ln -s /usr/local/mysql/support-files/mysql.server mysql （ Establish connection file ）

Complete the above operations perform service mysql start （or restart stop）

Modify with the following command MYSQL password
# /usr/local/mysql/bin/mysqladmin -u root password yourpassword // The default installation password is empty , For the sake of safety, you must modify it immediately
# chmod 700 /etc/init.d/mysql
# chkconfig --add mysqld
# chkconfig --level 345 mysql on //copy A script setting of the compilation directory makes mysql It can run automatically every time it is started
# service mysql start
# netstat -atln
// start-up mysql service
// see 3306 Is the port open . Pay attention to opening the port in the firewall .

It can be used telnet localhost 3306 Let's test it , If there's a reaction , That means the installation is successful

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