相关疑难解决方法(0)

我使用sudo apt-get. 现在我需要从我的系统中删除它。

我怎样才能做到这一点？

我是这里的新手，所以请多多包涵。

我正在使用 ubuntu 14.04。

我尝试使用以下命令输入 mysql：

mysql -u root -p

我收到以下消息：

The program mysql can be found on the following packages:
* mysql-client-core-5.5 
* mariadb-client-core-5.5 
* mysql-client-core-5.6 
* percona-xtrabd-cluster-client-5.5 

然后我输入：

sudo apt-get install mysql-client-core-5.6

安装后，我尝试使用以下命令再次连接到 mysql：

mysql -u root -p

然后我收到错误消息：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

网上查了一下，发现需要安装mysql服务器，所以写了下面的命令

sudo apt-get install mysql-server

然后我收到了消息：

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are …

谁能帮我安装mysql 5.7。我尝试遵循这个答案，但是当我跑步时

sudo apt-cache policy mysql-server

它给了我：

8.0.20-0ubuntu0.20.04.1 500
    500 http://pk.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
    500 http://pk.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages
    500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
    500 http://security.ubuntu.com/ubuntu focal-security/main i386 Packages
8.0.19-0ubuntu5 500
    500 http://pk.archive.ubuntu.com/ubuntu focal/main amd64 Packages
    500 http://pk.archive.ubuntu.com/ubuntu focal/main i386 Packages
5.7.31-1ubuntu18.04 500
    500 http://repo.mysql.com/apt/ubuntu bionic/mysql-5.7 amd64 Packages
5.7.30-0ubuntu0.18.04.1 500
    500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
    500 http://security.ubuntu.com/ubuntu bionic-security/main i386 Packages

这与链接的答案不同。

当我尝试

sudo apt install -f mysql-client=5.7.30-1ubuntu18.04

它给了我错误

Version '5.7.30-1ubuntu18.04' for 'mysql-client' was not found.

当我运行sudo apt …

是否可以在 Ubuntu 19.10 上安装 MySQL Server 5.7？如果是，如何？

When we do:

# apt-get install mysql-server-5.6  

we get version 5.6.28. We have tested and certified our app with 5.6.19, and we cant even create the schema in 5.6.28 due to changes made in 5.6.20.

The question is, how to we install 5.6.19 on a server? We tried this:

# apt-get install mysql-server-5.6=5.6.19 

but this does not work, presumably there is some other version string we need such as "5.6.19_ubuntu_amd" or similar.

FYI, I am trying to replace 5.6.28. I …