当我运行该命令时sudo apt-get install mysql-server，出现以下错误......
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
libevent-core-2.0-5 mysql-client-5.7 mysql-common mysql-server-5.7
Suggested packages:
mailx tinyca
The following NEW packages will be installed:
libevent-core-2.0-5 mysql-client-5.7 mysql-common mysql-server
mysql-server-5.7
0 upgraded, 5 newly installed, 0 to remove and 7 not upgraded.
Need to get 0 B/4,497 kB of archives.
After this operation, 82.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Preconfiguring packages ...
Selecting previously unselected package mysql-common.
(Reading database ... 288832 files and directories currently installed.)
Preparing to unpack .../mysql-common_5.7.21-0ubuntu0.16.04.1_all.deb ...
Unpacking mysql-common (5.7.21-0ubuntu0.16.04.1) ...
Selecting previously unselected package mysql-client-5.7.
Preparing to unpack .../mysql-client-5.7_5.7.21-0ubuntu0.16.04.1_amd64.deb ...
Unpacking mysql-client-5.7 (5.7.21-0ubuntu0.16.04.1) ...
Selecting previously unselected package libevent-core-2.0-5:amd64.
Preparing to unpack .../libevent-core-2.0-5_2.0.21-stable-2ubuntu0.16.04.1_amd64.deb ...
Unpacking libevent-core-2.0-5:amd64 (2.0.21-stable-2ubuntu0.16.04.1) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for libc-bin (2.23-0ubuntu10) ...
Setting up mysql-common (5.7.21-0ubuntu0.16.04.1) ...
update-alternatives: using /etc/mysql/my.cnf.fallback to provide /etc/mysql/my.cnf (my.cnf) in auto mode
Selecting previously unselected package mysql-server-5.7.
(Reading database ... 288884 files and directories currently installed.)
Preparing to unpack .../mysql-server-5.7_5.7.21-0ubuntu0.16.04.1_amd64.deb ...
Unpacking mysql-server-5.7 (5.7.21-0ubuntu0.16.04.1) ...
Selecting previously unselected package mysql-server.
Preparing to unpack .../mysql-server_5.7.21-0ubuntu0.16.04.1_all.deb ...
Unpacking mysql-server (5.7.21-0ubuntu0.16.04.1) ...
Processing triggers for systemd (229-4ubuntu21.2) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up mysql-client-5.7 (5.7.21-0ubuntu0.16.04.1) ...
Setting up libevent-core-2.0-5:amd64 (2.0.21-stable-2ubuntu0.16.04.1) ...
Setting up mysql-server-5.7 (5.7.21-0ubuntu0.16.04.1) ...
update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode
Renaming removed key_buffer and myisam-recover options (if present)
mysql_upgrade: Got error: 1524: Plugin 'unix_socket' is not loaded while connecting to the MySQL server
Upgrade process encountered error and will not continue.
mysql_upgrade failed with exit status 11
dpkg: error processing package mysql-server-5.7 (--configure):
subprocess installed post-installation script returned error exit status 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 configured yet.
dpkg: error processing package mysql-server (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Processing triggers for libc-bin (2.23-0ubuntu10) ...
Processing triggers for systemd (229-4ubuntu21.2) ...
Processing triggers for ureadahead (0.100.0-19) ...
Errors were encountered while processing:
mysql-server-5.7
mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
在发帖之前，我浏览了很多论坛和网站。我已经尝试过的方法列表：
- Ubuntu 15.10 mysql 错误 1524 - unix_socket | 询问 Ubuntu
- 修改了
my.conf文件 - 清除
mysql-*文件，重新安装 - 在 Ubuntu 上配置 MySQL 服务器 | rackspace.com
我真的陷入困境，如果有人能指导我摆脱困境，那将会非常有帮助。
答案1
我最终通过首先删除 mysql 以及 maria-db 的所有依赖项和配置文件解决了该问题。为此，请转到/var/lib并删除与 mysql 相关的所有文件（您必须具有 root 权限才能删除它们，因此请不要忘记sudo su在此之前写入）。您可以通过键入 来删除所有文件rm -r /var/lib/mysql*。
之后，您必须通过键入 来删除 /etc 目录中的所有文件rm -r /etc/mysql*
然后执行以下命令即可开始：
sudo apt purge mysql-client-5.7 mysql-client-core-5.7 mysql-common mysql-server-5.7 mysql-server-core-5.7 mysql-server
sudo apt update && sudo apt dist-upgrade && sudo apt autoremove && sudo apt -f install
sudo apt install mysql-server
答案2
试试这些。希望有帮助。
sudo apt-get remove --purge mysql*
sudo apt-get purge mysql*
sudo apt-get autoremove
sudo apt-get autoclean
sudo apt-get remove dbconfig-mysql
sudo apt-get dist-upgrade
sudo apt-get install mysql-server