无法安装 mysql-server 包

Question

我正在尝试在 debian 上安装 mysql-server 包，但出现错误：

t@mintserver:~$ sudo apt install mysql-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  mysql-server
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/2.942 kB of archives.
After this operation, 111 kB of additional disk space will be used.
Selecting previously unselected package mysql-server.
(Reading database ... 372098 files and directories currently installed.)
Preparing to unpack .../mysql-server_5.7.29-0ubuntu0.18.04.1_all.deb ...
Unpacking mysql-server (5.7.29-0ubuntu0.18.04.1) ...
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-5.7; however:
  Package mysql-server-5.7 is not installed.

我阅读了许多其他回复，告诉我要清除软件包，纠正依赖关系，但没有任何效果。

t@mintserver:~$ sudo apt install -f
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 0 B/2.933 kB of archives.
After this operation, 0 B of additional disk space will be used.
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-5.7; however:
  Package mysql-server-5.7 is not installed.

dpkg: error processing package mysql-server (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

Answer 1

请运行sudo dpkg --audit 或sudo dpkg -C，都是一样的。它可能会建议您做什么。

编辑：根据您的评论，

设置 mysql-server-5.7 (5.7.29-0ubuntu0.18.04.1) ... update-alternatives: 错误: 替代路径 /etc/mysql/mysql.cnf 不存在 dpkg: 错误处理包 mysql -server-5.7 (--configure): 安装mysql-server-5.7包后安装脚本子进程返回错误退出状态2处理时遇到错误：mysql-server-5.7

update-alternatives 程序找不到这个mysql.cnf 文件。

您可以尝试创建该文件吗？ 请做： sudo nano /etc/mysql/mysql.cnf 填写这个content:

[mysql]

然后，再试一次dpkg --configure <package>

或者，这可能会完成这项工作：

sudo apt-get remove --purge mysql-\*
sudo apt-get install mysql-server mysql-client

如果有兴趣，您也可以阅读A Quick Guide to Using the MySQL APT Repository。它们针对不同的场景提供不同的安装方法。