ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

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root@origrata:~# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

root@origrata:~# /etc/init.d/mysql stop
[ ok ] Stopping mysql (via systemctl): mysql.service.

root@origrata:~# mkdir /var/run/mysqld

root@origrata:~# chown mysql /var/run/mysqld

root@origrata:~# mysqld_safe --skip-grant-tables&
[1] 2076

root@origrata:~# 2020-05-16T07:55:57.688113Z mysqld_safe Logging to '/var/log/mysql/error.log'.
2020-05-16T07:55:57.708584Z mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

root@origrata:~# mysql --user=root mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.30-0ubuntu0.18.04.1 (Ubuntu)

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> update user set authentication_string=PASSWORD('IsidenganPassword') where user='root';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1  Changed: 0  Warnings: 1

mysql> update user set plugin="mysql_native_password" where User='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit
root@origrata:~#  killall -u mysql
root@origrata:~# 2020-05-16T07:57:12.552327Z mysqld_safe mysqld from pid file /var/run/mysqld/ ended

[1]+  Done                    mysqld_safe --skip-grant-tables
root@origrata:~# /etc/init.d/mysql start
[ ok ] Starting mysql (via systemctl): mysql.service.
root@origrata:~# mysql -p -u root

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