Redirecting to /bin/systemctl start mysqld.service Failed to start mysqld.service: Unit not found.
时间: 2023-10-23 07:42:33 浏览: 73
I'm sorry, as an AI language model, I cannot perform actions on your system. However, the error message indicates that the system is unable to find the "mysqld.service" unit. You can try checking if the MySQL service is installed on your system and if the unit file exists in the correct location. If the service is not installed, you can install it using your system's package manager. If the unit file is missing, you can try reinstalling the MySQL package or creating the unit file manually.
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Redirecting to /bin/systemctl start mysqld.service Failed to start mysqld.service: Unit not found.
根据提供的引用内容,这个错误可能是由于没有安装MySQL导致的。在CentOS7下,yum install mysql-server mysql mysql-devel已经将MySQL移除,改为默认安装MariaDB。因此,如果你想启动MySQL数据库,需要先安装MySQL并将其设置为默认的数据库。以下是安装MySQL并启动mysqld.service的步骤:
1.安装MySQL
```shell
sudo yum install mysql-server mysql mysql-devel
```
2.启动mysqld.service
```shell
sudo systemctl start mysqld.service
```
如果你已经安装了MySQL但仍然遇到此错误,请检查mysqld.service是否存在。你可以使用以下命令检查mysqld.service是否存在:
```shell
systemctl status mysqld.service
```
如果mysqld.service不存在,你可以尝试重新安装MySQL或手动创建mysqld.service文件。
Redirecting to /bin/systemctl start mysqld.service Failed to start mysqld.service: Unit not found
您遇到的错误提示是因为找不到名为`mysqld.service`的单元。这可能是由于MySQL未正确安装或服务不可用导致的。请按照以下步骤进行排查和解决:
1. 首先,请确保您已经正确安装了MySQL。您可以使用适用于您的操作系统的包管理器来安装MySQL。
2. 如果MySQL已经安装,请尝试使用以下命令手动启动MySQL服务:
```
sudo systemctl start mysql
```
或者
```
sudo service mysql start
```
3. 如果手动启动服务失败,请检查MySQL是否已正确配置为作为系统服务运行。可以尝试重新配置MySQL服务:
```
sudo dpkg-reconfigure mysql-server
```
4. 如果仍然无法启动MySQL服务,请检查MySQL的日志文件以获取更多详细信息。通常,MySQL的日志文件位于`/var/log/mysql/`目录下。
5. 如果问题仍然存在,请尝试重新安装MySQL,并确保您正在使用最新的稳定版本。
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