I tried to find in some articles describing how to correctly start & stop mysql server.
I found this link: How to start/stop MySql server on Ubuntu 8.04 | Abhi's Blogging World
I ran this command:
/etc/init.d/mysql start
but I see this error
ERROR 1045 (28000) Access denied for user....
After I tried this command:
sudo /etc/init.d/mysql start
I entered my password, and again I see the same error.
Next command:
sudo /etc/init.d/mysql - root -p start
results in:
ERROR 1049 (42000) Unknown database 'start'.
And when I run this command:
sudo service mysql start
MySQL server success started. Cool!
So, what's wrong with the other commands? Why do they result in error?
11 Answers
Your first two commands weren't run as root so that is expected behaviour. You need to be root to stop/start mysql.
However:
sudo /etc/init.d/mysql start
should work. Indeed it does, for me:
kojan:~> sudo /etc/init.d/mysql restart
[sudo] password for chris:
Stopping MySQL database server: mysqld.
Starting MySQL database server: mysqld.
Checking for corrupt, not cleanly closed and upgrade needing tables..
I used restart rather than start, since it was already running, but the effect is the same. Are you sure you entered your password correctly? :) Have you edited your sudo config at all which would stop this working?
This one..
sudo /etc/init.d/mysql - root -p start
The arguments are wrong. an init.d script only takes start or stop or restart - just one word telling it what to do. You cannot give it multiple arguments as you were trying to do.
Anyway, the short answer is the one you actually got to work, is the recommended way. service is replacing all the init.d scripts over time, so you should get into the habit of using service. The page you link to was written in 2008, so has to be taken with some salt :)
Also helps to double check that "mysql" is the correct service name. In my case it wasn't. I kept getting following response: mysql: unrecognized service when running
service mysql status
Then I checked /etc/init.d and found script named mysqld which listed process name: mysqld and prog=mysqld
So then I did
service mysqld status
service mysqld stop
service mysqld start
and they all worked fine.
I got a strange error when I installed mysql-workbench on my Ubuntu machine. After that I tried to start the mysql service using this command:
service mysql start
This showed that the MySQL server was not installed, so I installed it and my problem was solved. The command to install mysql-server is:
sudo apt-get install mysql-server
After successful installation, start the MySQL server:
service mysql start
I had the same issue with Ubuntu64 and I fixed by simply not using systemctl but instead this:
sudo service mysql restart
hopefully this command will work for you.
After installing MySQL on your system run this command:
service mysql status
If the service is down run:
service mysql start
To stop it:
service mysql stop
This one should work for the manually built mysql server:
sudo /usr/local/mysql/bin/mysqld_safe --user=mysql
On Ubuntu 18.04 the socket is defined in the file /etc/mysql/mysql.conf.d/mysqld.cnf:
socket = /var/run/mysqld/mysqld.sock
The directory was not present so I created it manually as below:
sudo mkdir -p /var/run/mysqld
Restart MySQL. That solved it for my case here.
use this command to start SQL server as the root user
sudo service mysql restart
OR
sudo /etc/init.d/mysql start
Restart with this command
sudo /etc/init.d/mysql restart
Stop MySQL server with this command
sudo /etc/init.d/mysql stop
Check if MySQL is running:
sudo service mysql status
I got stuck with the same issue. I uninstalled and reinstalled with these commands:
sudo apt-get --purge remove mysql-server mysql-common mysql-client
sudo apt update && sudo apt dist-upgrade && sudo apt autoremove
sudo apt-get install mysql-server mysql-client
A little script to cover both cases [server running/server not running]:
#!/bin/bash
service mysql restart
if [ "$?" != "0" ]; then
service mysql start
fi
