mysql doesn't ask for root password when installing











up vote
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down vote

favorite
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I used apt install mysql-server to install MySQL on Ubuntu 16.04 but during the installation, it did not ask for root password.



After installation I got ERROR 1045 when I tried to login as root and mysql_secure_installation threw the same error. I purged and autoremoved then reinstalled but it does not work.



How could i fix this? Can I set the root password if I didn't set it during installation?



This is my installation log:




The following additional packages will be installed:
libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server-5.7
mysql-server-core-5.7
Suggested packages:
mailx tinyca
The following NEW packages will be installed:
libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server mysql-server-5.7
mysql-server-core-5.7
0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/17,9 MB of archives.
After this operation, 160 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Preconfiguring packages ...
Selecting previously unselected package libaio1:amd64.
(Reading database ... 227144 files and directories currently installed.)
Preparing to unpack .../libaio1_0.3.110-2_amd64.deb ...
Unpacking libaio1:amd64 (0.3.110-2) ...
Selecting previously unselected package mysql-client-core-5.7.
Preparing to unpack .../mysql-client-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
Unpacking mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
Selecting previously unselected package mysql-client-5.7.
Preparing to unpack .../mysql-client-5.7_5.7.12-0ubuntu1_amd64.deb ...
Unpacking mysql-client-5.7 (5.7.12-0ubuntu1) ...
Selecting previously unselected package mysql-server-core-5.7.
Preparing to unpack .../mysql-server-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
Unpacking mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
Selecting previously unselected package mysql-server-5.7.
Preparing to unpack .../mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb ...
Unpacking mysql-server-5.7 (5.7.12-0ubuntu1) ...
Selecting previously unselected package mysql-server.
Preparing to unpack .../mysql-server_5.7.12-0ubuntu1_all.deb ...
Unpacking mysql-server (5.7.12-0ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for systemd (229-4ubuntu4) ...
Processing triggers for ureadahead (0.100.0-19) ...
Setting up libaio1:amd64 (0.3.110-2) ...
Setting up mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
Setting up mysql-client-5.7 (5.7.12-0ubuntu1) ...
Setting up mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
Setting up mysql-server-5.7 (5.7.12-0ubuntu1) ...
update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
Checking if update is needed.
This installation of MySQL is already upgraded to 5.7.12, use --force if you still need to run mysql_upgrade
Setting up mysql-server (5.7.12-0ubuntu1) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...










share|improve this question




























    up vote
    39
    down vote

    favorite
    21












    I used apt install mysql-server to install MySQL on Ubuntu 16.04 but during the installation, it did not ask for root password.



    After installation I got ERROR 1045 when I tried to login as root and mysql_secure_installation threw the same error. I purged and autoremoved then reinstalled but it does not work.



    How could i fix this? Can I set the root password if I didn't set it during installation?



    This is my installation log:




    The following additional packages will be installed:
    libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server-5.7
    mysql-server-core-5.7
    Suggested packages:
    mailx tinyca
    The following NEW packages will be installed:
    libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server mysql-server-5.7
    mysql-server-core-5.7
    0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
    Need to get 0 B/17,9 MB of archives.
    After this operation, 160 MB of additional disk space will be used.
    Do you want to continue? [Y/n] y
    Preconfiguring packages ...
    Selecting previously unselected package libaio1:amd64.
    (Reading database ... 227144 files and directories currently installed.)
    Preparing to unpack .../libaio1_0.3.110-2_amd64.deb ...
    Unpacking libaio1:amd64 (0.3.110-2) ...
    Selecting previously unselected package mysql-client-core-5.7.
    Preparing to unpack .../mysql-client-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
    Unpacking mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
    Selecting previously unselected package mysql-client-5.7.
    Preparing to unpack .../mysql-client-5.7_5.7.12-0ubuntu1_amd64.deb ...
    Unpacking mysql-client-5.7 (5.7.12-0ubuntu1) ...
    Selecting previously unselected package mysql-server-core-5.7.
    Preparing to unpack .../mysql-server-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
    Unpacking mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
    Selecting previously unselected package mysql-server-5.7.
    Preparing to unpack .../mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb ...
    Unpacking mysql-server-5.7 (5.7.12-0ubuntu1) ...
    Selecting previously unselected package mysql-server.
    Preparing to unpack .../mysql-server_5.7.12-0ubuntu1_all.deb ...
    Unpacking mysql-server (5.7.12-0ubuntu1) ...
    Processing triggers for libc-bin (2.23-0ubuntu3) ...
    Processing triggers for man-db (2.7.5-1) ...
    Processing triggers for systemd (229-4ubuntu4) ...
    Processing triggers for ureadahead (0.100.0-19) ...
    Setting up libaio1:amd64 (0.3.110-2) ...
    Setting up mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
    Setting up mysql-client-5.7 (5.7.12-0ubuntu1) ...
    Setting up mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
    Setting up mysql-server-5.7 (5.7.12-0ubuntu1) ...
    update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
    Checking if update is needed.
    This installation of MySQL is already upgraded to 5.7.12, use --force if you still need to run mysql_upgrade
    Setting up mysql-server (5.7.12-0ubuntu1) ...
    Processing triggers for libc-bin (2.23-0ubuntu3) ...










    share|improve this question


























      up vote
      39
      down vote

      favorite
      21









      up vote
      39
      down vote

      favorite
      21






      21





      I used apt install mysql-server to install MySQL on Ubuntu 16.04 but during the installation, it did not ask for root password.



      After installation I got ERROR 1045 when I tried to login as root and mysql_secure_installation threw the same error. I purged and autoremoved then reinstalled but it does not work.



      How could i fix this? Can I set the root password if I didn't set it during installation?



      This is my installation log:




      The following additional packages will be installed:
      libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server-5.7
      mysql-server-core-5.7
      Suggested packages:
      mailx tinyca
      The following NEW packages will be installed:
      libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server mysql-server-5.7
      mysql-server-core-5.7
      0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
      Need to get 0 B/17,9 MB of archives.
      After this operation, 160 MB of additional disk space will be used.
      Do you want to continue? [Y/n] y
      Preconfiguring packages ...
      Selecting previously unselected package libaio1:amd64.
      (Reading database ... 227144 files and directories currently installed.)
      Preparing to unpack .../libaio1_0.3.110-2_amd64.deb ...
      Unpacking libaio1:amd64 (0.3.110-2) ...
      Selecting previously unselected package mysql-client-core-5.7.
      Preparing to unpack .../mysql-client-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-client-5.7.
      Preparing to unpack .../mysql-client-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-client-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-server-core-5.7.
      Preparing to unpack .../mysql-server-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-server-5.7.
      Preparing to unpack .../mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-server-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-server.
      Preparing to unpack .../mysql-server_5.7.12-0ubuntu1_all.deb ...
      Unpacking mysql-server (5.7.12-0ubuntu1) ...
      Processing triggers for libc-bin (2.23-0ubuntu3) ...
      Processing triggers for man-db (2.7.5-1) ...
      Processing triggers for systemd (229-4ubuntu4) ...
      Processing triggers for ureadahead (0.100.0-19) ...
      Setting up libaio1:amd64 (0.3.110-2) ...
      Setting up mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
      Setting up mysql-client-5.7 (5.7.12-0ubuntu1) ...
      Setting up mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
      Setting up mysql-server-5.7 (5.7.12-0ubuntu1) ...
      update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
      Checking if update is needed.
      This installation of MySQL is already upgraded to 5.7.12, use --force if you still need to run mysql_upgrade
      Setting up mysql-server (5.7.12-0ubuntu1) ...
      Processing triggers for libc-bin (2.23-0ubuntu3) ...










      share|improve this question















      I used apt install mysql-server to install MySQL on Ubuntu 16.04 but during the installation, it did not ask for root password.



      After installation I got ERROR 1045 when I tried to login as root and mysql_secure_installation threw the same error. I purged and autoremoved then reinstalled but it does not work.



      How could i fix this? Can I set the root password if I didn't set it during installation?



      This is my installation log:




      The following additional packages will be installed:
      libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server-5.7
      mysql-server-core-5.7
      Suggested packages:
      mailx tinyca
      The following NEW packages will be installed:
      libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server mysql-server-5.7
      mysql-server-core-5.7
      0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
      Need to get 0 B/17,9 MB of archives.
      After this operation, 160 MB of additional disk space will be used.
      Do you want to continue? [Y/n] y
      Preconfiguring packages ...
      Selecting previously unselected package libaio1:amd64.
      (Reading database ... 227144 files and directories currently installed.)
      Preparing to unpack .../libaio1_0.3.110-2_amd64.deb ...
      Unpacking libaio1:amd64 (0.3.110-2) ...
      Selecting previously unselected package mysql-client-core-5.7.
      Preparing to unpack .../mysql-client-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-client-5.7.
      Preparing to unpack .../mysql-client-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-client-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-server-core-5.7.
      Preparing to unpack .../mysql-server-core-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-server-5.7.
      Preparing to unpack .../mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb ...
      Unpacking mysql-server-5.7 (5.7.12-0ubuntu1) ...
      Selecting previously unselected package mysql-server.
      Preparing to unpack .../mysql-server_5.7.12-0ubuntu1_all.deb ...
      Unpacking mysql-server (5.7.12-0ubuntu1) ...
      Processing triggers for libc-bin (2.23-0ubuntu3) ...
      Processing triggers for man-db (2.7.5-1) ...
      Processing triggers for systemd (229-4ubuntu4) ...
      Processing triggers for ureadahead (0.100.0-19) ...
      Setting up libaio1:amd64 (0.3.110-2) ...
      Setting up mysql-client-core-5.7 (5.7.12-0ubuntu1) ...
      Setting up mysql-client-5.7 (5.7.12-0ubuntu1) ...
      Setting up mysql-server-core-5.7 (5.7.12-0ubuntu1) ...
      Setting up mysql-server-5.7 (5.7.12-0ubuntu1) ...
      update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
      Checking if update is needed.
      This installation of MySQL is already upgraded to 5.7.12, use --force if you still need to run mysql_upgrade
      Setting up mysql-server (5.7.12-0ubuntu1) ...
      Processing triggers for libc-bin (2.23-0ubuntu3) ...







      software-installation password mysql root






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      share|improve this question








      edited Jan 5 '17 at 11:53









      Zanna

      49.1k13123234




      49.1k13123234










      asked May 3 '16 at 14:04









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          4 Answers
          4






          active

          oldest

          votes

















          up vote
          41
          down vote



          accepted










          You can recover or set root password without knowing the current one by starting mysql without loading the grant-tables.



          Please note the $ in the commands. This is specifying the terminal prompt you see when typing in the command. It's showing it's a line of text, but and actual typed terminal command. The "mysql>" prefix is also a prompt. That is the prompt you get when running mysql interactivately.



          This is the cli (command line) to do this:
          (Be sure to stop the current server before performing the steps. Only one server can run at a time.)



          $ sudo mkdir /var/run/mysqld; sudo chown mysql /var/run/mysqld
          $ sudo mysqld_safe --skip-grant-tables&


          Now you can log in as root without a password and perform all commands, as in this case, set the root password as root.



          $ sudo mysql --user=root mysql


          This is the set root password that you will perform inside mysql if you have MySQL 5.6 or below:



          mysql> update user set Password=PASSWORD('new-password') where user='root';
          flush privileges;


          In MySQL 5.7 or above



          mysql> update user set authentication_string=PASSWORD('new-password') where user='root';
          flush privileges;


          From there, quit (kill the running msqld) mysql and start it as normal.



          Notes on starting and stopping the mysql service:



          Stop mysql:



          $ sudo service mysql stop


          Start mysql (normal):



          $ sudo service mysql start


          Kill the temporary mysql safe mode session:



          $ sudo mysqladmin shutdown





          share|improve this answer



















          • 8




            in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
            – The Code
            Jun 20 '16 at 19:05






          • 6




            I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
            – llamerr
            Jul 18 '16 at 16:51










          • @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
            – L. D. James
            Aug 4 '16 at 13:16


















          up vote
          24
          down vote













          It will not ask for the password while installing mysql in Ubuntu 16.04 but you can set it after successful installation in following way:



          After completion of mysql installation, run command:



          sudo mysql_secure_installation


          It will show:




          NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
          SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!



          In order to log into MariaDB to secure it, we'll need the current
          password for the root user. If you've just installed MariaDB, and you
          haven't set the root password yet, the password will be blank, so you
          should just press enter here.




          Enter current password for root (enter for none): (here press Enter)




          OK, successfully used password, moving on...



          Setting the root password ensures that nobody can log into the MariaDB
          root user without the proper authorisation.



          Set root password? [Y/n] y   (press 'y' to set new password)
          New password:
          Re-enter new password:


          Password updated successfully! Reloading privilege tables.. ...
          Success!






          FOR UBUNTU 18.04 OR mysql-server version 5.7.22, THIS METHOD WILL NOT WORK



          Follow these steps to set root password in 18.04:



          As there is no password set for root user, simply login with blank password



          sudo mysql -u root -p
          Enter password: (press enter as no password is set)


          after then can easily run query



          ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';





          share|improve this answer



















          • 2




            The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
            – L. D. James
            May 4 '16 at 5:12










          • @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
            – d a i s y
            May 4 '16 at 5:35






          • 1




            As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
            – chefarov
            Oct 11 at 18:04




















          up vote
          14
          down vote













          Apparently the mysql-server installation on 16.04 (or any 5.7 installation?) allows root access not through password, but through the auth_socket plugin. Running sudo mysql -u root (n.b. w/o a password) will give you mysql console whereas running the command as non-root prompts you for a password.



          It would seem that changing the password doesn't make much of a difference since the auth backend doesn't even check for a password. There is a very comprehensive article on how to change the plugin and switch to password authentication.






          share|improve this answer

















          • 3




            I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
            – EricC
            Jun 18 at 2:45


















          up vote
          0
          down vote













          Adding to the main answer, If you are stuck at



          "mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql"



          1 thing to remember that you have to use another terminal window to enter the following command.



          $ sudo mysql --user=root mysql


          If you try to do it in the same window, it will shut down the mysqld safemode process.






          share|improve this answer





















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            4 Answers
            4






            active

            oldest

            votes








            4 Answers
            4






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            41
            down vote



            accepted










            You can recover or set root password without knowing the current one by starting mysql without loading the grant-tables.



            Please note the $ in the commands. This is specifying the terminal prompt you see when typing in the command. It's showing it's a line of text, but and actual typed terminal command. The "mysql>" prefix is also a prompt. That is the prompt you get when running mysql interactivately.



            This is the cli (command line) to do this:
            (Be sure to stop the current server before performing the steps. Only one server can run at a time.)



            $ sudo mkdir /var/run/mysqld; sudo chown mysql /var/run/mysqld
            $ sudo mysqld_safe --skip-grant-tables&


            Now you can log in as root without a password and perform all commands, as in this case, set the root password as root.



            $ sudo mysql --user=root mysql


            This is the set root password that you will perform inside mysql if you have MySQL 5.6 or below:



            mysql> update user set Password=PASSWORD('new-password') where user='root';
            flush privileges;


            In MySQL 5.7 or above



            mysql> update user set authentication_string=PASSWORD('new-password') where user='root';
            flush privileges;


            From there, quit (kill the running msqld) mysql and start it as normal.



            Notes on starting and stopping the mysql service:



            Stop mysql:



            $ sudo service mysql stop


            Start mysql (normal):



            $ sudo service mysql start


            Kill the temporary mysql safe mode session:



            $ sudo mysqladmin shutdown





            share|improve this answer



















            • 8




              in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
              – The Code
              Jun 20 '16 at 19:05






            • 6




              I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
              – llamerr
              Jul 18 '16 at 16:51










            • @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
              – L. D. James
              Aug 4 '16 at 13:16















            up vote
            41
            down vote



            accepted










            You can recover or set root password without knowing the current one by starting mysql without loading the grant-tables.



            Please note the $ in the commands. This is specifying the terminal prompt you see when typing in the command. It's showing it's a line of text, but and actual typed terminal command. The "mysql>" prefix is also a prompt. That is the prompt you get when running mysql interactivately.



            This is the cli (command line) to do this:
            (Be sure to stop the current server before performing the steps. Only one server can run at a time.)



            $ sudo mkdir /var/run/mysqld; sudo chown mysql /var/run/mysqld
            $ sudo mysqld_safe --skip-grant-tables&


            Now you can log in as root without a password and perform all commands, as in this case, set the root password as root.



            $ sudo mysql --user=root mysql


            This is the set root password that you will perform inside mysql if you have MySQL 5.6 or below:



            mysql> update user set Password=PASSWORD('new-password') where user='root';
            flush privileges;


            In MySQL 5.7 or above



            mysql> update user set authentication_string=PASSWORD('new-password') where user='root';
            flush privileges;


            From there, quit (kill the running msqld) mysql and start it as normal.



            Notes on starting and stopping the mysql service:



            Stop mysql:



            $ sudo service mysql stop


            Start mysql (normal):



            $ sudo service mysql start


            Kill the temporary mysql safe mode session:



            $ sudo mysqladmin shutdown





            share|improve this answer



















            • 8




              in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
              – The Code
              Jun 20 '16 at 19:05






            • 6




              I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
              – llamerr
              Jul 18 '16 at 16:51










            • @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
              – L. D. James
              Aug 4 '16 at 13:16













            up vote
            41
            down vote



            accepted







            up vote
            41
            down vote



            accepted






            You can recover or set root password without knowing the current one by starting mysql without loading the grant-tables.



            Please note the $ in the commands. This is specifying the terminal prompt you see when typing in the command. It's showing it's a line of text, but and actual typed terminal command. The "mysql>" prefix is also a prompt. That is the prompt you get when running mysql interactivately.



            This is the cli (command line) to do this:
            (Be sure to stop the current server before performing the steps. Only one server can run at a time.)



            $ sudo mkdir /var/run/mysqld; sudo chown mysql /var/run/mysqld
            $ sudo mysqld_safe --skip-grant-tables&


            Now you can log in as root without a password and perform all commands, as in this case, set the root password as root.



            $ sudo mysql --user=root mysql


            This is the set root password that you will perform inside mysql if you have MySQL 5.6 or below:



            mysql> update user set Password=PASSWORD('new-password') where user='root';
            flush privileges;


            In MySQL 5.7 or above



            mysql> update user set authentication_string=PASSWORD('new-password') where user='root';
            flush privileges;


            From there, quit (kill the running msqld) mysql and start it as normal.



            Notes on starting and stopping the mysql service:



            Stop mysql:



            $ sudo service mysql stop


            Start mysql (normal):



            $ sudo service mysql start


            Kill the temporary mysql safe mode session:



            $ sudo mysqladmin shutdown





            share|improve this answer














            You can recover or set root password without knowing the current one by starting mysql without loading the grant-tables.



            Please note the $ in the commands. This is specifying the terminal prompt you see when typing in the command. It's showing it's a line of text, but and actual typed terminal command. The "mysql>" prefix is also a prompt. That is the prompt you get when running mysql interactivately.



            This is the cli (command line) to do this:
            (Be sure to stop the current server before performing the steps. Only one server can run at a time.)



            $ sudo mkdir /var/run/mysqld; sudo chown mysql /var/run/mysqld
            $ sudo mysqld_safe --skip-grant-tables&


            Now you can log in as root without a password and perform all commands, as in this case, set the root password as root.



            $ sudo mysql --user=root mysql


            This is the set root password that you will perform inside mysql if you have MySQL 5.6 or below:



            mysql> update user set Password=PASSWORD('new-password') where user='root';
            flush privileges;


            In MySQL 5.7 or above



            mysql> update user set authentication_string=PASSWORD('new-password') where user='root';
            flush privileges;


            From there, quit (kill the running msqld) mysql and start it as normal.



            Notes on starting and stopping the mysql service:



            Stop mysql:



            $ sudo service mysql stop


            Start mysql (normal):



            $ sudo service mysql start


            Kill the temporary mysql safe mode session:



            $ sudo mysqladmin shutdown






            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited Mar 13 '17 at 14:07

























            answered May 3 '16 at 14:27









            L. D. James

            17.9k43482




            17.9k43482








            • 8




              in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
              – The Code
              Jun 20 '16 at 19:05






            • 6




              I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
              – llamerr
              Jul 18 '16 at 16:51










            • @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
              – L. D. James
              Aug 4 '16 at 13:16














            • 8




              in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
              – The Code
              Jun 20 '16 at 19:05






            • 6




              I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
              – llamerr
              Jul 18 '16 at 16:51










            • @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
              – L. D. James
              Aug 4 '16 at 13:16








            8




            8




            in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
            – The Code
            Jun 20 '16 at 19:05




            in mysql 5.7.12 there is no column named password in user table. Hence following command worked for me. update user set authentication_string=PASSWORD('new-password') where user='root';
            – The Code
            Jun 20 '16 at 19:05




            6




            6




            I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
            – llamerr
            Jul 18 '16 at 16:51




            I'm still getting ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
            – llamerr
            Jul 18 '16 at 16:51












            @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
            – L. D. James
            Aug 4 '16 at 13:16




            @ErelSegal-Halevi There are two things you should do. Run $ mysql_upgrade -u root -p. Also try the command above given by RP Singh .
            – L. D. James
            Aug 4 '16 at 13:16












            up vote
            24
            down vote













            It will not ask for the password while installing mysql in Ubuntu 16.04 but you can set it after successful installation in following way:



            After completion of mysql installation, run command:



            sudo mysql_secure_installation


            It will show:




            NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
            SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!



            In order to log into MariaDB to secure it, we'll need the current
            password for the root user. If you've just installed MariaDB, and you
            haven't set the root password yet, the password will be blank, so you
            should just press enter here.




            Enter current password for root (enter for none): (here press Enter)




            OK, successfully used password, moving on...



            Setting the root password ensures that nobody can log into the MariaDB
            root user without the proper authorisation.



            Set root password? [Y/n] y   (press 'y' to set new password)
            New password:
            Re-enter new password:


            Password updated successfully! Reloading privilege tables.. ...
            Success!






            FOR UBUNTU 18.04 OR mysql-server version 5.7.22, THIS METHOD WILL NOT WORK



            Follow these steps to set root password in 18.04:



            As there is no password set for root user, simply login with blank password



            sudo mysql -u root -p
            Enter password: (press enter as no password is set)


            after then can easily run query



            ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';





            share|improve this answer



















            • 2




              The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
              – L. D. James
              May 4 '16 at 5:12










            • @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
              – d a i s y
              May 4 '16 at 5:35






            • 1




              As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
              – chefarov
              Oct 11 at 18:04

















            up vote
            24
            down vote













            It will not ask for the password while installing mysql in Ubuntu 16.04 but you can set it after successful installation in following way:



            After completion of mysql installation, run command:



            sudo mysql_secure_installation


            It will show:




            NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
            SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!



            In order to log into MariaDB to secure it, we'll need the current
            password for the root user. If you've just installed MariaDB, and you
            haven't set the root password yet, the password will be blank, so you
            should just press enter here.




            Enter current password for root (enter for none): (here press Enter)




            OK, successfully used password, moving on...



            Setting the root password ensures that nobody can log into the MariaDB
            root user without the proper authorisation.



            Set root password? [Y/n] y   (press 'y' to set new password)
            New password:
            Re-enter new password:


            Password updated successfully! Reloading privilege tables.. ...
            Success!






            FOR UBUNTU 18.04 OR mysql-server version 5.7.22, THIS METHOD WILL NOT WORK



            Follow these steps to set root password in 18.04:



            As there is no password set for root user, simply login with blank password



            sudo mysql -u root -p
            Enter password: (press enter as no password is set)


            after then can easily run query



            ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';





            share|improve this answer



















            • 2




              The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
              – L. D. James
              May 4 '16 at 5:12










            • @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
              – d a i s y
              May 4 '16 at 5:35






            • 1




              As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
              – chefarov
              Oct 11 at 18:04















            up vote
            24
            down vote










            up vote
            24
            down vote









            It will not ask for the password while installing mysql in Ubuntu 16.04 but you can set it after successful installation in following way:



            After completion of mysql installation, run command:



            sudo mysql_secure_installation


            It will show:




            NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
            SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!



            In order to log into MariaDB to secure it, we'll need the current
            password for the root user. If you've just installed MariaDB, and you
            haven't set the root password yet, the password will be blank, so you
            should just press enter here.




            Enter current password for root (enter for none): (here press Enter)




            OK, successfully used password, moving on...



            Setting the root password ensures that nobody can log into the MariaDB
            root user without the proper authorisation.



            Set root password? [Y/n] y   (press 'y' to set new password)
            New password:
            Re-enter new password:


            Password updated successfully! Reloading privilege tables.. ...
            Success!






            FOR UBUNTU 18.04 OR mysql-server version 5.7.22, THIS METHOD WILL NOT WORK



            Follow these steps to set root password in 18.04:



            As there is no password set for root user, simply login with blank password



            sudo mysql -u root -p
            Enter password: (press enter as no password is set)


            after then can easily run query



            ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';





            share|improve this answer














            It will not ask for the password while installing mysql in Ubuntu 16.04 but you can set it after successful installation in following way:



            After completion of mysql installation, run command:



            sudo mysql_secure_installation


            It will show:




            NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
            SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!



            In order to log into MariaDB to secure it, we'll need the current
            password for the root user. If you've just installed MariaDB, and you
            haven't set the root password yet, the password will be blank, so you
            should just press enter here.




            Enter current password for root (enter for none): (here press Enter)




            OK, successfully used password, moving on...



            Setting the root password ensures that nobody can log into the MariaDB
            root user without the proper authorisation.



            Set root password? [Y/n] y   (press 'y' to set new password)
            New password:
            Re-enter new password:


            Password updated successfully! Reloading privilege tables.. ...
            Success!






            FOR UBUNTU 18.04 OR mysql-server version 5.7.22, THIS METHOD WILL NOT WORK



            Follow these steps to set root password in 18.04:



            As there is no password set for root user, simply login with blank password



            sudo mysql -u root -p
            Enter password: (press enter as no password is set)


            after then can easily run query



            ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';






            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited Oct 29 at 3:28

























            answered May 4 '16 at 4:55









            d a i s y

            3,23982244




            3,23982244








            • 2




              The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
              – L. D. James
              May 4 '16 at 5:12










            • @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
              – d a i s y
              May 4 '16 at 5:35






            • 1




              As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
              – chefarov
              Oct 11 at 18:04
















            • 2




              The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
              – L. D. James
              May 4 '16 at 5:12










            • @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
              – d a i s y
              May 4 '16 at 5:35






            • 1




              As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
              – chefarov
              Oct 11 at 18:04










            2




            2




            The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
            – L. D. James
            May 4 '16 at 5:12




            The problem in the case of this question is that the user can't get to the prompts you're mentioned because he doesn't know the current password for root.
            – L. D. James
            May 4 '16 at 5:12












            @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
            – d a i s y
            May 4 '16 at 5:35




            @L.D.James yes,you're right. I don't remember about ERROR : 1405 when i run mysql_secure_installation but sudo mysql_secure_installation worked for me. mysql installation doesn't ask for password. It happened with me the same. and here press enter means press enter without password.
            – d a i s y
            May 4 '16 at 5:35




            1




            1




            As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
            – chefarov
            Oct 11 at 18:04






            As concers ubuntu 18.04 or debian 9+ it won't connect with blank password and even after resetting pass for root, it still refuses to connect
            – chefarov
            Oct 11 at 18:04












            up vote
            14
            down vote













            Apparently the mysql-server installation on 16.04 (or any 5.7 installation?) allows root access not through password, but through the auth_socket plugin. Running sudo mysql -u root (n.b. w/o a password) will give you mysql console whereas running the command as non-root prompts you for a password.



            It would seem that changing the password doesn't make much of a difference since the auth backend doesn't even check for a password. There is a very comprehensive article on how to change the plugin and switch to password authentication.






            share|improve this answer

















            • 3




              I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
              – EricC
              Jun 18 at 2:45















            up vote
            14
            down vote













            Apparently the mysql-server installation on 16.04 (or any 5.7 installation?) allows root access not through password, but through the auth_socket plugin. Running sudo mysql -u root (n.b. w/o a password) will give you mysql console whereas running the command as non-root prompts you for a password.



            It would seem that changing the password doesn't make much of a difference since the auth backend doesn't even check for a password. There is a very comprehensive article on how to change the plugin and switch to password authentication.






            share|improve this answer

















            • 3




              I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
              – EricC
              Jun 18 at 2:45













            up vote
            14
            down vote










            up vote
            14
            down vote









            Apparently the mysql-server installation on 16.04 (or any 5.7 installation?) allows root access not through password, but through the auth_socket plugin. Running sudo mysql -u root (n.b. w/o a password) will give you mysql console whereas running the command as non-root prompts you for a password.



            It would seem that changing the password doesn't make much of a difference since the auth backend doesn't even check for a password. There is a very comprehensive article on how to change the plugin and switch to password authentication.






            share|improve this answer












            Apparently the mysql-server installation on 16.04 (or any 5.7 installation?) allows root access not through password, but through the auth_socket plugin. Running sudo mysql -u root (n.b. w/o a password) will give you mysql console whereas running the command as non-root prompts you for a password.



            It would seem that changing the password doesn't make much of a difference since the auth backend doesn't even check for a password. There is a very comprehensive article on how to change the plugin and switch to password authentication.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Nov 12 '16 at 9:57









            carp

            24123




            24123








            • 3




              I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
              – EricC
              Jun 18 at 2:45














            • 3




              I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
              – EricC
              Jun 18 at 2:45








            3




            3




            I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
            – EricC
            Jun 18 at 2:45




            I was able to confirm with a fresh installation of apt install mysql-server without specifying a password on 18.04. The symptom and solution is exactly as described.
            – EricC
            Jun 18 at 2:45










            up vote
            0
            down vote













            Adding to the main answer, If you are stuck at



            "mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql"



            1 thing to remember that you have to use another terminal window to enter the following command.



            $ sudo mysql --user=root mysql


            If you try to do it in the same window, it will shut down the mysqld safemode process.






            share|improve this answer

























              up vote
              0
              down vote













              Adding to the main answer, If you are stuck at



              "mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql"



              1 thing to remember that you have to use another terminal window to enter the following command.



              $ sudo mysql --user=root mysql


              If you try to do it in the same window, it will shut down the mysqld safemode process.






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                Adding to the main answer, If you are stuck at



                "mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql"



                1 thing to remember that you have to use another terminal window to enter the following command.



                $ sudo mysql --user=root mysql


                If you try to do it in the same window, it will shut down the mysqld safemode process.






                share|improve this answer












                Adding to the main answer, If you are stuck at



                "mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql"



                1 thing to remember that you have to use another terminal window to enter the following command.



                $ sudo mysql --user=root mysql


                If you try to do it in the same window, it will shut down the mysqld safemode process.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Sep 15 '17 at 8:03









                Mohd Abdul Mujib

                1214




                1214






























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