问题
By wrong uninstalling MariaDB, I've lost working instance of MySQL and MariaDB in my Ubuntu 16.04 system...
I've broken the dependencies so much, that I can not uninstall or install MySQL or MariaDB, using apt-get, or dpkg...
All the following commands failed:
apt-get [install -f] [update] [remove] [purge] [autorove] [clean] [check]
and options with dpkg such as:
dpkg --remove --force-remove-reinstreq mysql
also don't help me.
Manually downloading the package and attempting to install from a local file did not help.
For each installation, uninstallation or other attempt, I get almost the same result:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
mariadb-client : Depends: mariadb-client-10.0 (>= 10.0.34-0ubuntu0.16.04.1) but it is not installed
mariadb-server-10.0 : PreDepends: mariadb-common (>= 10.0.34-0ubuntu0.16.04.1) but it is not installed
Depends: mariadb-client-10.0 (>= 10.0.34-0ubuntu0.16.04.1) but it is not installed
Breaks: mysql-server
mariadb-server-core-10.0 : Depends: mariadb-common (>= 10.0.34-0ubuntu0.16.04.1) but it is not installed
mysql-server : Depends: mysql-community-server (= 5.7.22-1ubuntu16.04) but it is not installed
E: Unmet dependencies. Try using -f.
Is there any different way to permanently remove any traces and remnants of MySQL and MariaDB from the operating system, so that I can reinstall MySQL itself?
I need to working with MySQL, but I can't reinstall the operating system.
Please help me.
回答1:
It is probably better to address the question to serverfault.com.
Run:
dpkg --audit
to find what is broken.
Then run:
dpkg --list|grep -i mysql
and
dpkg --list|grep -i mariadb
Look at the first (status) column and, optionally, inspect detailed status for some of packages with:
dpkg-info -s <name-of-package>
Then you can try to remove found mysql/mariadb related packages with
dpkg -remove --force-remove-reinstreq <package-list>
As a way around you can always run mysq in docker container without mysql being installed
回答2:
God exists! :D
The problem was solved by entering:
sudo apt-get -f install
without any other parameters
and later displaying all packages via:
sudo dpkg -l | grep mariadb
sudo dpkg -l | grep mysql
and removing problematic packages in the right order:
sudo apt-get --purge autoremove package_name
After the complete removal of all problematic packages, I could re-install MySQL without any problems...
Thank you @YuriLachin for your help.
来源：https://stackoverflow.com/questions/50573787/how-to-forcefully-remove-mysql-and-mariadb-from-ubuntu-16-04-without-apt-get