mysql不卸载

Question

我想在Ubuntu16.04中重新安装mysql。

mysql-server is already the newest version (5.7.21-0ubuntu0.16.04.1).
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 mysql-server : Depends: mysql-server-5.7 but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

之后，我编写了一个删除mysql的代码，但它没有被删除。

sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'mysql-server-core-5.1' for glob 'mysql-server-core-*'
Note, selecting 'mysql-server-core-5.5' for glob 'mysql-server-core-*'
Note, selecting 'mysql-server-core-5.6' for glob 'mysql-server-core-*'
Note, selecting 'mysql-server-core-5.7' for glob 'mysql-server-core-*'
Package 'mysql-server-core-5.6' is not installed, so not removed
Package 'mysql-server-core-5.5' is not installed, so not removed
Package 'mysql-server-core-5.1' is not installed, so not removed
Note, selecting 'mysql-client-core-5.5' for glob 'mysql-client-core-*'
Note, selecting 'mysql-client-core-5.6' for glob 'mysql-client-core-*'
Note, selecting 'mysql-client-core-5.7' for glob 'mysql-client-core-*'
Package 'mysql-client-core-5.5' is not installed, so not removed
Package 'mysql-client-core-5.6' is not installed, so not removed
Package 'mysql-client' is not installed, so not removed
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 libmysqlclient20 : Depends: mysql-common (>= 5.5) but it is not going to be installed
 mariadb-common : Depends: mysql-common (>= 5.6.25) but it is not going to be installed
 mysql-client-5.7 : Depends: mysql-client-core-5.7 but it is not going to be installed
                    Depends: mysql-common (>= 5.5) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Answer 1

您可以尝试以下步骤：

1. 这将从系统中删除mysql-server。自动删除mysql服务器
2. 检查是否还安装了mysql。mysql -V
3. 这将安装mysql-server apt安装mysql-server。

如果你仍然有问题，从

apt-get install -f

如果仍然无法工作，请尝试：

dpkg-reconfigure mysql-server