Unable to access MySQL after it automatically gene

Question

I have erased and installed OSX 10.11 El Capitan and I have been following through this tutorial to get MySQL up and running on the new OS X. The first step was to download MySQL For Mac OS X 10.9 (x86, 64-bit), DMG Archive (works on 10.11, they recommended in the tutorial). While I were finishing installing the MySQL, I got the message saying that :

2015-10-25T02:10:54.549219Z 1 [Note] A temporary password is generated for root@localhost: R>gFySuiu23U

If you lose this password, please consult the section How to Reset the Root Password in the MySQL reference manual.

That was weird, I have never seen that kind of message. After that, I started MySQL via the Preference Pane and then use /usr/local/mysql/bin/mysql -v command on the terminal for another step. I got an error message saying that :

ERROR 1045 (28000): Access denied for user 'cheetah'@'localhost' (using password: NO)

I have also tried to access database through Sequel Pro using root as username and blank password, I got access denied message saying that :

Unable to connect to host 127.0.0.1 because access was denied.

Double-check your username and password and ensure that access from your current location is permitted.

MySQL said: Access denied for user 'root'@'localhost' (using password: NO)

Okay, I also tried this again using root as a username but 'R>gFySuiu23U' as a password (which was generated from MySQL). I got connection failed message saying that :

Unable to connect to host 127.0.0.1, or the request timed out.

Be sure that the address is correct and that you have the necessary privileges, or try increasing the connection timeout (currently 10 seconds).

MySQL said: Your password has expired. To log in you must change it using a client that supports expired passwords.

How could I solve this problem? I remember that MySQL has never got automatically generated a temporary password like this, hasn't it ?

Answer 1

Now that the password MySQL had generated is expired, the problem is reduced to getting this password to work again (1) or generate a new one (2). This can be accomplished by running MySQL with the skip-grant-tables option which would make it ignore the access rights:

1. Stop your MySQL server.

2. Add the below at the end of the [mysqld] section of my.cnf file and save it.

   skip-grant-tables

3. Start MySQL server.

4. In terminal, type

   mysql -u root -p

to get into MySQL command prompt.

5. In the command prompt, type

   USE mysql;

to get into the mysql database where it keeps database users.

6. Type

   UPDATE user SET password_expired = 'N' WHERE User = 'root';

to let MySQL know the password is not expired (1) or

UPDATE user SET authentication_string = PASSWORD('YourNewPassword'), password_expired = 'N' WHERE User = 'root';

to assign a new password YourNewPassword to root (2).

Answer 2

This is what worked for me on OS X Yosemite running MySql v5.7 (installed from the .dmg).

cd /usr/local/mysql/bin
./mysql -u root -p --connect-expired-password

(Enter the temporary password generated by the installer.)

This gets you into sandbox mode and mysql> prompt. Then set desired root password with SET PASSWORD:

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('mySuperSecretPassword');

Answer 3

I faced the same problem. I followed the installation process guide from https://www.ntu.edu.sg/home/ehchua/programming/sql/MySQL_HowTo.html and downloaded DMG archive and installed MySQL on my MAC OS X 10.12.2.

Finally executed the following commands on new Terminal.

cd /usr/local/mysql/bin

./mysql -u root -p --connect-expired-password

It worked.