blocks|key|855634|text|~$+cat+/etc/issue
Ubuntu+16.04.3+LTS+\n+\l

~$+aptitude+show+mysql-server+%7Cgrep+Version
Version:+5.7.20-0ubuntu0.16.04.1|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|855635|在file:+/etc/mysql/debian.cnf中有两个重要的行：|unstyled|855636|user+++++=+debian-sys-maint
password+=+<unique+password>|855637|使用该用户和密码登录到mysql:以debian-sys-maint身份登录后，您可以：|855638|FLUSH+PRIVILEGES;
ALTER+USER+'root'@'localhost'+IDENTIFIED+BY+'new_password';|855639|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|P|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$B|C]]|$1|M|3|-4|5|F|7|T|8|@]|9|@]|A|$]]]|N|$]]

<pre><code>~$ cat /etc/issue
Ubuntu 16.04.3 LTS \n \l

~$ aptitude show mysql-server |grep Version
Version: 5.7.20-0ubuntu0.16.04.1
</code></pre>

In file: /etc/mysql/debian.cnf are two important lines:

<pre><code>user = debian-sys-maint
password = &lt;unique password&gt;
</code></pre>

Use that user and password to login to mysql:
Once logged in as debian-sys-maint you can:

<pre><code>FLUSH PRIVILEGES;
ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
</code></pre>

blocks|key|656376|text|以下调整适用于我的设置：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|656377|$+sudo+mkdir+/var/run/mysqld
$+sudo+chown+mysql:+/var/run/mysqld
$+sudo+kill+-9+$(sudo+cat+/var/run/mysqld/mysqld.pid)|code-block|syntax|javascript|656378|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The following adjustments works for my setup:

<pre><code>$ sudo mkdir /var/run/mysqld
$ sudo chown mysql: /var/run/mysqld
$ sudo kill -9 $(sudo cat /var/run/mysqld/mysqld.pid)
</code></pre>

blocks|key|857676|text|1)停止数据库服务器。sudo+systemctl+stop+mysql|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|857677|2)重启数据库服务器，不做权限检查。对于下面的命令sudo+mysqld_safe+--skip-grant-tables+--skip-networking+&|857678|3)以根用户mysql+-u+root身份连接到数据库|857679|4)更改Root密码|857680|FLUSH+PRIVILEGES;

ALTER+USER+'root'@'localhost'+IDENTIFIED+BY+'new_password';|code-block|syntax|javascript|857681|5)正常重启数据库服务器|857682|sudo+kill+`cat+/var/run/mysqld/mysqld.pid`

sudo+systemctl+start+mysql|857683|现在使用数据库中的新密码登录：mysql+-u+root+-p|857684|或者，您可以访问以下链接：|857685|https://www.digitalocean.com/community/tutorials/how-to-reset-your-mysql-or-mariadb-root-password|857686|entityMap|0|LINK|mutability|MUTABLE|url^0|B|P|0|P|1K|0|6|D|0|0|0|0|0|F|G|0|0|0|2P|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1D|8|@$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1G|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|1H|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1I|8|@]|D|@]|E|$]]|$1|S|3|T|5|N|7|1J|8|@]|D|@]|E|$O|P]]|$1|U|3|V|5|6|7|1K|8|@$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|W|3|X|5|6|7|1N|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|6|7|1O|8|@]|D|@$9|1P|A|1Q|1|1R]]|E|$]]|$1|10|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]]|11|$12|$5|13|14|15|E|$16|Z]]]]

1) Stop the Database Server.
 <code>sudo systemctl stop mysql</code>

2) Restarting the Database Server Without Permission Checking. For this following command
 <code>sudo mysqld_safe --skip-grant-tables --skip-networking &amp;</code>

3) Connect to the database as the root user
 <code>mysql -u root</code>

4) Change the Root Password

<pre><code>FLUSH PRIVILEGES;

ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
</code></pre>

5) Restart the database server narmally

<pre><code>sudo kill `cat /var/run/mysqld/mysqld.pid`

sudo systemctl start mysql
</code></pre>

Now login with new password in database:
<code>mysql -u root -p</code>

Or you can follow the following link:

<a href="https://www.digitalocean.com/community/tutorials/how-to-reset-your-mysql-or-mariadb-root-password" rel="nofollow noreferrer">https://www.digitalocean.com/community/tutorials/how-to-reset-your-mysql-or-mariadb-root-password</a>

blocks|key|853240|text|我已经尝试了所有的方法，但对我来说都不起作用。下面的方法起作用了。我希望它能在不同版本的ubuntu上运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|853241|853242|OS信息：|ordered-list-item|853243|853244|mysql+--version
mysql++Ver+8.0.28-0ubuntu0.20.04.3+for+Linux+on+x86_64+((Ubuntu))|code-block|syntax|javascript|853245|853246|首先，使用命令|853247|停止MySQL服务|853248|sudo+systemctl+stop+mysql|853249|853250|其他命令不起作用，以及我如何在没有任何权限检查的情况下启动MySQL服务器。为此，请运行：|853251|853252|//+open+the+mysql+systemd+configuration+file+your+default+text+editor.+
//+In+my+case,+it+is+nano+editor.
sudo+systemctl+edit+mysql

//+Add+the+following+3+lines
[Service]
ExecStart=
ExecStart=/usr/sbin/mysqld+--skip-grant-tables+--skip-networking|853253|使用以下命令重新加载|853254|系统配置：|853255|853256|sudo+systemctl+daemon-reload|853257|853258|启动MySQL服务|853259|853260|sudo+systemctl+start+mysql|853261|853262|现在，以根用户身份连接到MySQL服务器，无需密码：|853263|853264|sudo+mysql+-u+root
mysql>+FLUSH+PRIVILEGES;
mysql>+ALTER+USER+'root'@'localhost'+IDENTIFIED+WITH+caching_sha2_password+BY+'add-newpassword-here';|853265|恢复修改后的systemd+configuration的|853266|853267|853268|sudo+systemctl+revert+mysql|853269|你已经做完了。|853270|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1R|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|1T|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]|$1|G|3|H|5|I|7|1V|8|@]|9|@]|A|$J|K]]|$1|L|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|M|3|N|5|E|7|1X|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|Q|3|R|5|I|7|1Z|8|@]|9|@]|A|$J|K]]|$1|S|3|-4|5|6|7|20|8|@]|9|@]|A|$]]|$1|T|3|U|5|E|7|21|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|22|8|@]|9|@]|A|$]]|$1|W|3|X|5|I|7|23|8|@]|9|@]|A|$J|K]]|$1|Y|3|Z|5|6|7|24|8|@]|9|@]|A|$]]|$1|10|3|11|5|E|7|25|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|26|8|@]|9|@]|A|$]]|$1|13|3|14|5|I|7|27|8|@]|9|@]|A|$J|K]]|$1|15|3|-4|5|6|7|28|8|@]|9|@]|A|$]]|$1|16|3|17|5|E|7|29|8|@]|9|@]|A|$]]|$1|18|3|-4|5|6|7|2A|8|@]|9|@]|A|$]]|$1|19|3|1A|5|I|7|2B|8|@]|9|@]|A|$J|K]]|$1|1B|3|-4|5|6|7|2C|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|E|7|2D|8|@]|9|@]|A|$]]|$1|1E|3|-4|5|6|7|2E|8|@]|9|@]|A|$]]|$1|1F|3|1G|5|I|7|2F|8|@]|9|@]|A|$J|K]]|$1|1H|3|1I|5|6|7|2G|8|@]|9|@]|A|$]]|$1|1J|3|-4|5|E|7|2H|8|@]|9|@]|A|$]]|$1|1K|3|-4|5|6|7|2I|8|@]|9|@]|A|$]]|$1|1L|3|1M|5|I|7|2J|8|@]|9|@]|A|$J|K]]|$1|1N|3|1O|5|6|7|2K|8|@]|9|@]|A|$]]|$1|1P|3|-4|5|6|7|2L|8|@]|9|@]|A|$]]]|1Q|$]]

I had tried all the approaches but didn't work for me. The following approach worked. I am hopeful that it will work on different versions of ubuntu.
<ol>
<li>OS info:</li>
</ol>
<pre><code>mysql --version
mysql Ver 8.0.28-0ubuntu0.20.04.3 for Linux on x86_64 ((Ubuntu))
</code></pre>
<ol start="2">
<li>First, stop MySQL service using command</li>
</ol>
<pre><code>sudo systemctl stop mysql
</code></pre>
<ol start="3">
<li>Other commands didn't work and here how I start the MySQL server without any permission-checking. To do so, run:</li>
</ol>
<pre><code>// open the mysql systemd configuration file your default text editor. 
// In my case, it is nano editor.
sudo systemctl edit mysql

// Add the following 3 lines
[Service]
ExecStart=
ExecStart=/usr/sbin/mysqld --skip-grant-tables --skip-networking
</code></pre>
<ol start="4">
<li>Reload systemd configuration using command:</li>
</ol>
<pre><code>sudo systemctl daemon-reload
</code></pre>
<ol start="5">
<li>Start MySQL service</li>
</ol>
<pre><code>sudo systemctl start mysql
</code></pre>
<ol start="6">
<li>Now, connect to MySQL server as root user without password:</li>
</ol>
<pre><code>sudo mysql -u root
mysql&gt; FLUSH PRIVILEGES;
mysql&gt; ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY 'add-newpassword-here';
</code></pre>
<ol start="7">
<li>Revert the modified systemd configuration</li>
</ol>
<pre><code>sudo systemctl revert mysql
</code></pre>
You are all Done.

Mysql version - mysql Ver 14.14 Distrib 5.7.18, for Linux (x86_64) using EditLine wrapper.

I had forgotten my password and tried many commands online.Also the problem is that grant tables command not working in my terminal.

how to recover mysql password in ubuntu 16.04

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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Mysql版本- mysql Ver14.14Distrib 5.7.18，用于Linux (x86_64)，使用EditLine包装器。我忘记了我的密码，并尝试了许多命令，但问题是online.Also tables命令在我的终端上不起作用。

问如何在ubuntu 16.04中恢复mysql密码
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