Ubuntu: How to change root password for mysql and phpmyadmin?

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Ubuntu: How to change root password for mysql and phpmyadmin?

The Question: I’ve set up mysql and phpmyadmin and chose not to set a password when
installing hoping that once set up i could login with root and no password but
i get the following error from phpmyadmin:
Login without a password is forbidden by configuration (see AllowNoPassword)
I have previously moved the phpmyadmin folder to /var/www/
I have tried changing the following line
$cfg[‘Servers’][$i][‘AllowNoPassword’] = false;
to
$cfg[‘Servers’][$i][‘AllowNoPassword’] = true;
but still had no success, so i am wondering is there a way i can change the
root passwords for both so i can access phpmyadmin and create databases.

Solutions Sample (Please watch the whole video to see all solutions, in order of how many people found them helpful):

== This solution helped 57 people ==
You can change the mysql root password by logging in to the database directly
(mysql -h your_host -u root) then run
SET PASSWORD FOR root@localhost = PASSWORD(‘yourpassword’);
phpmyadmin should use that password so not quite sure what you mean by “for
both”.
Make sure to set the new password into phpmyadmin’s config.inc.php too, at line
$cfg[‘Servers’][$i][‘password’] = ‘yourpassword’;
Otherwise, phpmyadmin may not work, echoing
Access denied for user ‘user’@’localhost’ (using password: YES)

== This solution helped 12 people ==
I recently came across this very same issue Ubuntu 12.04. I just couldn’t seem
to login with root & no password. I set the AllowNoPassword setting to TRUE in
the config. Later I found out that I was editing the wrong config.inc.php file
to add the AllowNoPassword setting.
Edit:
/etc/phpmyadmin/config.inc.php
Not:
/usr/share/phpmyadmin/config.inc.php
I believe the first is the debian local config file, which will override the
usr version.

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