问题
I ran the following command
wget http://repo.mysql.com/mysql-apt-config_0.8.9-1_all.deb
sudo dpkg -i mysql-apt-config_0.8.9-1_all.deb
sudo apt-get update
all goes well but when i hit
sudo apt-get install mysql-server
It gives me following errors
Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:
The following packages have unmet dependencies: mysql-server : Depends: mysql-community-server (= 5.7.20-1ubuntu16.04) but it is not going to be installed E: Unable to correct problems, you have held broken packages.
To fix broken packages i did ran
sudo apt-get install -f
sudo apt autoremove
sudo apt-get update
but all in vain. Thanks to you guys in advance :)
回答1:
try to install mysql server with the version.
sudo apt-get update
sudo apt-get install mysql-server-5.6
回答2:
To begin with, I deleted MySQL with:
sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*
sudo rm -rf /etc/mysql /var/lib/mysql
sudo apt-get autoremove
sudo apt-get autoclean
Then I downloaded the .deb from oficial page and used the following commands:
curl -OL https://dev.mysql.com/get/mysql-apt-config_0.8.12-1_all.deb
sudo dpkg -i mysql-apt-config*
sudo apt update
sudo apt install mysql-server -y
At this point I had trouble because of Ubuntu eoan "incompability" (I'm using Ubuntu 19.10), displaying a message like: "The detected system (Debian jessie) is not supported by MySQL. If you believe the platform is compatible with one of the supported systems, one of the corresponding repositories may be selected". But I researched in MySQL bugs page and ran:
dpkg -i mysql-apt-config_0.8.13-1_all.deb
sudo apt update
sudo apt install mysql-server -y
When it finishes, you may check the installation with:
sudo systemctl status mysql.service
And you should see something like...
This worked for me, after trying solutions in StackExchange, none of which worked. I hope this helps! Looking for feedback if I did something wrong, thanks.
来源：https://stackoverflow.com/questions/48012246/unable-to-install-mysql-on-ubuntu-16-04