MySQL - Reset a lost MySQL root password

Not the Server root user

A common issue is confusing the Server root user with the MySQL root user.

The Server root user is the server's main user. The MySQL root user has complete control over MySQL only. The two 'root' users are not connected in any way.

Stop MySQL

The first thing to do is stop MySQL. If you are using Ubuntu or Debian the command is as follows:

sudo /etc/init.d/mysql stop

For CentOS, Fedora, and RHEL the command is:

sudo /etc/init.d/mysqld stop

Safe mode

Next we need to start MySQL in safe mode - that is to say, we will start MySQL but skip the user privileges table. Again, note that you will need to have sudo access for these commands so you don't need to worry about any user being able to reset the MySQL root password:

sudo mysqld_safe --skip-grant-tables &

Note: The ampersand (&) at the end of the command is required.

Login

All we need to do now is to log into MySQL and set the password.

mysql -u root

Note: No password is required at this stage as when we started MySQL we skipped the user privileges table.

Next, instruct MySQL which database to use:

use mysql;

Reset Password

Enter the new password for the root user as follows:

update user set password=PASSWORD("mynewpassword") where User='root';

and finally, flush the privileges:

flush privileges;

Restart

Now the password has been reset, we need to restart MySQL by logging out:

quit

and simply stopping and starting MySQL.

On Ubuntu and Debian:

sudo /etc/init.d/mysql stop
...
sudo /etc/init.d/mysql start

On CentOS and Fedora and RHEL:

sudo /etc/init.d/mysqld stop
...
sudo /etc/init.d/mysql start

Login

Test the new password by logging in:

mysql -u root -p

You will be prompted for your new password.

How to Install Android 5.0 Lollipop in Nexus 5 form your MAC

I have a Nexus 5 and going to show you the most easy way to install Android 5.0 Lollipop in Nexus 5. I have installed it in my Nexus device and would like to share with you what I have done step by step..

You will need the newly updated Android L (or Android 5.0) factory images provided by Google to install on your device. In addition you will need to install the Android SDK or at least ADB and Fastboot.

The Android 5.0 System Image is a download that contains all the files needed to install a stock version of Android 5.0 on the Nexus 7 and Nexus 5. This is essentially everything that you would download as an OTA update for regular Android updates. However, this makes the phone stock like it was out of the box (aka factory image) and will wipe all user data and settings.

So please be careful before you do this.. backup your Data, Photos, Contact, SMS, MMS and Apps.

Now lets move step by step.

Step 1: Download Android 5 Image

Download the image of Android Lollipop from the following location.

http://storage.googleapis.com/androiddevelopers/finalpreview/hammerhead-lpx13d-preview-f7596f51.tgz

This was the final version when I download it but you can download the latest version going to the following link.

http://developer.android.com/preview/index.html

After download the Image(.tgz) please unzip to your desktop. Please make sure you run you command inside this folder.

Step 2: Install ADB on Mac, Linux & ChromeOS

Nexus Tools makes it easy to install ADB on a Mac, Linux or even ChromeOS. All you need to do is open Terminal on your computer and past in the code from xda. Open terminal by going to search, and simply typing Terminal and opening the program.

Nexus Tools is an installer for the Android debug/development command-line tools ADB (Android Device Bridge) and Fastboot for Mac OS X, Linux, and Google Chrome/Chromium OS. The script does not need to be downloaded, simply copy and paste this command into the terminal and run it to install Nexus Tools:

bash <(curl https://raw.githubusercontent.com/corbindavenport/nexus-tools/master/install.sh)

and this command to un-install Nexus Tools:

bash <(curl https://raw.githubusercontent.com/corbindavenport/nexus-tools/master/uninstall.sh)

Step 3: Next Step

If your Nexus 5 or Nexus 7 is not unlocked you should do that first. We could not install the Android 5.0 System image with the device locked.

Open a Terminal in the adb folder and type then hit enter.

adb reboot bootloader

In Fastboot type:

fastboot oem unlock

Then hit enter. Follow the on-screen instructions and choose to erase the device. Wait a minute or so for it to unlock. This removes everything on your device.

on a Mac or other computer you will need to type

sudo ./flash-all.sh

This will push all of the files to your Nexus 5 or Nexus 7. The files will start pushing and installing and your Nexus device may reboot and you will see an Android figure and then a moving Android logo. The logo screen may stay for a long time. Don’t unplug the device. This may last 15 minutes or longer. When Android prompts you to complete setup you can unplug the Nexus. It took less than two minutes for us.