Why can't I reinstall MySQL?
- by Johannes Nielsen
I've been looking all around the Internet for an answer but didn't find anything. I hope you can help me now.
I have a server with MySQL. From one day to another, MySQL didn't let me enter with my root password anymore (accsess denied for user 'root'@'localhost' using password: 'YES'). So I tried two ways to reset the password:
No.1: I typed:
shell> /etc/init.d/mysqld stop
To stop MySQL. Then I restarted it skipping the grant-tables:
shell> mysqld_safe --skip-grant-tables
So I was able to log in as root and change the password using:
mysql> UPDATE mysql.user SET Password = PASSWORD('MyNewPassword') WHERE User = 'root';
FLUSH PRIVILEGES;
I restarted MySQL and tried to log in as root with my new password - didn't work. So I tried the solution that's described here: http://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html (I don't want to post it here because this post is already pretty long). Didn't work either. Actually it made it worse, because since that day, every time I try to start MySQL, it doesn't even ask me for my password, but I get:
shell> ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)
Well, I've looked up what it means and found that my mysqld.sock is missing. I tried to create it using touch but MySQL can't start with that socket.
Now I'm trying to reinstall MySQL but everytime I type in
shell> apt-get --purge remove mysql-server mysql-common mysql-client
In that or any other order or every one of those three alone, I get:
shell> Reading package lists... Done
shell> Building dependency tree
shell> Reading state information... Done
shell> Package mysql-client is not installed, so not removed
shell> Package mysql-server is not installed, so not removed
shell> You might want to run 'apt-get -f install' to correct these:
shell> The following packages have unmet dependencies:
shell> libmysqlclient18 : Depends: mysql-common (>= 5.5.28-0ubuntu0.12.04.2) but it is not going to be installed
shell> libmysqlclient18:i386 : Depends: mysql-common:i386 (>= 5.5.28-0ubuntu0.12.04.2)
shell> mysql-client-5.5 : Depends: mysql-common (>= 5.5.28-0ubuntu0.12.04.2) but it is not going to be installed
shell> mysql-server-5.5 : PreDepends: mysql-common (>= 5.5.28-0ubuntu0.12.04.2) but it is not going to be installed
shell> psa-firewall : Depends: plesk-core (>= 11.0.9) but it is not installable
shell> Depends: mysql-server but it is not going to be installed
shell> psa-spamassassin : Depends: plesk-core (>= 11.0.9) but it is not installable
shell> psa-vpn : Depends: plesk-core (>= 11.0.9) but it is not installable
shell> Depends: plesk-base (>= 11.0.9) but it is not installable
shell> Depends: mysql-server but it is not going to be installed
shell> E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
So I said to my self "let's just remove those files with depenencies, too" (that psa-stuff since plesk is virtual and can't be uninstalled)... Guess what happened:
shell> Reading package lists... Done
shell> Building dependency tree
shell> Reading state information... Done
shell> Package mysql-client is not installed, so not removed
shell> Package mysql-server is not installed, so not removed
shell> You might want to run 'apt-get -f install' to correct these:
shell> The following packages have unmet dependencies:
shell> libmysqlclient18 : Depends: mysql-common (>= 5.5.28-0ubuntu0.12.04.2) but it is not going to be installed
shell> libmysqlclient18:i386 : Depends: mysql-common:i386 (>= 5.5.28-0ubuntu0.12.04.2)
shell> mysql-client-5.5 : Depends: mysql-common (>= 5.5.28-0ubuntu0.12.04.2) but it is not going to be installed
shell> mysql-server-5.5 : PreDepends: mysql-common (>= 5.5.28-0ubuntu0.12.04.2) but it is not going to be installed
shell> E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
Of course I tried apt-get -f install, too many times even.
What am I doing wrong? No matter, which other packages I include into apt-get --purge remove, I always get new dependencies. Do I have to delete every MySQL-related directory and file manually?
Hope there's someone out there who can help me!
Cheers!
EDIT:
After trying
apt-get purge mysql-server mysql-common mysql-client libmysqlclient18 libmysqlclient18:i386 mysql-client-5.5 mysql-server-5.5 psa-firewall psa-spamassassin psa-vpn
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package mysql-client is not installed, so not removed
Package mysql-server is not installed, so not removed
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libdbd-mysql-perl : Depends: libmysqlclient18 (>= 5.5.13-1) but it is not going to be installed
libmyodbc : Depends: libmysqlclient18 (>= 5.5.13-1) but it is not going to be installed
libqt4-sql-mysql:i386 : Depends: libmysqlclient18:i386 (>= 5.5.13-1) but it is not going to be installed
php5-mysql : Depends: libmysqlclient18 (>= 5.5.13-1) but it is not going to be installed
ruby-mysql : Depends: libmysqlclient18 (>= 5.5.13-1) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
So I tried to remove all these and got:
Building dependency tree
Reading state information... Done
Package mysql-client is not installed, so not removed
Package mysql-server is not installed, so not removed
You might want to run 'apt-get -f install' to correct these:qlclient18:i386 mysql
The following packages have unmet dependencies:
libmysql-ruby1.8 : Depends: ruby-mysql but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
And actually I think removing that file, too solved my problem :-S Next time I'll try everything before asking :D Thank you Eric for keeping me couraged to just go on removing :D
