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我在安装mysql-server（我不应该这样做）之前安装了mariadb-server，因此我清除了mariadb*并将其从回购站中删除。但是，我无法安装mysql-server。无法在Ubuntu上安装MySQL 16.04
sudo apt-get install mysql-server后，我得到：
Setting up mysql-server-5.7 (5.7.19-0ubuntu0.16.04.1) ...
invoke-rc.d: could not determine current runlevel
* Stopping MySQL database server mysqld [ OK ] 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)
invoke-rc.d: could not determine current runlevel
invoke-rc.d: could not determine current runlevel
* Stopping MySQL database server mysqld [ OK ] invoke-rc.d: could not determine current runlevel
mysql_upgrade: Got error: 2002: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) 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
Setting up libhtml-tagset-perl (3.20-2) ...
Setting up liburi-perl (1.71-1) ...
Setting up libhtml-parser-perl (3.72-1) ...
Setting up libcgi-pm-perl (4.26-1) ...
Setting up libfcgi-perl (0.77-1build1) ...
Setting up libcgi-fast-perl (1:2.10-1) ...
Setting up libencode-locale-perl (1.05-1) ...
Setting up libhtml-template-perl (2.95-2) ...
Setting up libtimedate-perl (2.3000-2) ...
Setting up libhttp-date-perl (6.02-1) ...
Setting up libio-html-perl (1.001-1) ...
Setting up liblwp-mediatypes-perl (6.02-1) ...
Setting up libhttp-message-perl (6.11-1) ...
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
Processing triggers for libc-bin (2.23-0ubuntu9) ...
No apport report written because the error message indicates its a followup error from a previous failure.
Processing triggers for systemd (229-4ubuntu19) ...
Processing triggers for ureadahead (0.100.0-19) ...
Errors were encountered while processing:
mysql-server-5.7
E: Sub-process /usr/bin/dpkg returned an error code (1)
运行sudo apt-get install -f后，我得到：
Setting up mysql-server-5.7 (5.7.19-0ubuntu0.16.04.1) ...
invoke-rc.d: could not determine current runlevel
* Stopping MySQL database server mysqld [ OK ] Renaming removed key_buffer and myisam-recover options (if present)
invoke-rc.d: could not determine current runlevel
invoke-rc.d: could not determine current runlevel
* Stopping MySQL database server mysqld [ OK ] invoke-rc.d: could not determine current runlevel
mysql_upgrade: Got error: 2002: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) 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.
Errors were encountered while processing:
mysql-server-5.7
mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
如何避开这些错误，并安装mysql-server？
也许在https://askubuntu.com/发布，这将是更好的 –
它可能会更好如果你在[askubuntu.com] – Mahdi
'ps aux | grep mysql'并杀死进程 – Hackerman