$ sudo /etc/init.d/mysql stop
 * Stopping MySQL database server mysqld                                                                                                              [ OK ]
[1]-  Exit 1                  sudo /usr/sbin/mysqld --skip-grant-tables --skip-networking
[2]+  Exit 1                  sudo /usr/sbin/mysqld --skip-grant-tables --skip-networking
reg@regDesktopHome:~$ sudo mysqld --skip-grant-tables &
[1] 13651
reg@regDesktopHome:~$ 140627 19:02:02 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.

reg@regDesktopHome:~$ mysql -u root mysql
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
reg@regDesktopHome:~$ sudo mysql -u root mysql
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
[1]+  Exit 1                  sudo mysqld --skip-grant-tables

$ ps ax| grep mysql
16515 ?        Ssl    0:00 /usr/sbin/mysqld
16551 pts/23   S+     0:00 grep --color=auto mysql
reg@regDesktopHome:~/semios/v3upgrade$ sudo kill -9 16515
reg@regDesktopHome:~/semios/v3upgrade$ ps ax| grep mysql
16678 ?        Ssl    0:00 /usr/sbin/mysqld
16715 pts/23   S+     0:00 grep --color=auto mysql
reg@regDesktopHome:~/semios/v3upgrade$ mysql -u root
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

mysql -u root -p

apt-cache policy mysql-server

Installed: 5.5.37-0ubuntu0.12.04.1

sudo dpkg-reconfigure mysql-server-*.*

mysql -u root -p

sudo service mysql stop

sudo killall -9 mysqld

sudo mysqld_safe --skip-grant-tables --skip-networking &

mysql -u root

FLUSH PRIVILEGES;

UPDATE mysql.user SET Password=PASSWORD('newpwd') WHERE User='root';

UPDATE mysql.user SET authentication_string=PASSWORD('newpwd') WHERE User='root';

FLUSH PRIVILEGES;

exit

sudo killall mysqld_safe && sudo service mysql start

mysql -u root -p
Enter password: newpass
mysql>

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'test';

UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
FLUSH PRIVILEGES;

mysqld_safe --init-file=/home/me/mysql-init &

sudo service mysql stop
sudo mysqld_safe &
sudo mysql -u root

ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
FLUSH PRIVILEGES;
QUIT;

sudo killall mysqld
sudo service mysql start
sudo mysql -u root -p