Resetting MySQL root password giving error when running init-file - mysql

Question

I know there are countless questions and posts about this, but I'm getting an error when trying to start the MySQL Server and I don't know how to solve it.
So to explain I cannot access my database so I tried to reset the password of the root user. I've followed this guide however I've had no luck. First I had issues with permissions on my machine and now I'm getting this error:
1105 Bootstrap file error, return code (0). Nearest query: ''
Technically the MySQL Server is starting, however the init-file is not being run, and so my password is not being reset.
Command I am running is this:
mysqld --defaults-file="C:\\ProgramData\\MySQL\\MySQL Server 5.7\\my.ini" --init-file=C:\\mysql-init.txt --console
Contents of mysql-init.txt
ALTER USER 'root'#'localhost' IDENTIFIED BY 'new_password';
The following is the part of the log where the error is shown:
[Note] Execution of init_file 'C:\\mysql-init.txt' started.
[ERROR] 1105 Bootstrap file error, return code (0). Nearest query: ''
[Note] Execution of init_file 'C:\\mysql-init.txt' ended.
[Note] C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe: ready for connections.
MySQL Version: 5.7
OS: Windows 10

Answer 1

Actually you can pass the command:
--init-file=C:\\mysql-init.txt
as a parameter to start the MySQL service from its general tab.
(Source)

Answer 2

Had two errors with MySQL 5.7.24
1.) The script file must be in a separate folder (not mysql installation folder or data directory)
and that folder must get "secure-file-privileges"
2.) The error above was raised for the script did not end with a ';'
Succeeded then with command line statement as
mysqld --datadir=D:\ProgramData\mysql\data --init-file=D:\ProgramData\mysql\reset\reset.sql --secure-file-priv=D:\ProgramData\mysql\reset --console
and SQL-script file 'reset.sql' as
alter user 'root'#'localhost' identified by 'root_pwd';

Answer 3

For me, on Ubuntu, problem was init file was not owned by mysql user.
chown mysql:mysql /tmp/reset_mysql_pswd.sql
sudo mysqld --init-file=/var/lib/mysql/reset_mysql_pswd.sql
# ^C or kill -9 <mysqld pid>
systemctl stop mysql.service
systemctl start mysql.service
Even when the folder containing the init file and the init file itself had permissions 777 (which is a bad idea), I still get:
2020-04-10T23:14:48.030719Z 0 [Note] Execution of init_file '/tmp/reset_mysql_pswd.sql' started.
2020-04-10T23:14:48.030764Z 0 [ERROR] mysqld: File '/tmp/reset_mysql_pswd.sql' not found (Errcode: 13 - Permission denied)
2020-04-10T23:14:48.030772Z 0 [ERROR] Aborting