When I try to connect to MySQL, I get the following error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
It seems like this is a common error as I googled it and found a lot of responses. I tried a lot of the responses to fix it and here are the various error messages I receive:
When running service mysql start:
start: Rejected send message, 1 matched rules; type="method_call", sender=":1.10" (uid=1002 pid=5788 comm="start) interface="com.ubuntu.Upstart0_6.Job" member="Start" error name="(unset)" requested_reply=0 destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init"))
When running mysqld -P 3305:
101115 11:06:02 [Warning] Can't create test file /var/lib/mysql/ubuntu.lower-test 101115 11:06:02 [Warning] Can't create test file /var/lib/mysql/ubuntu.lower-test 101115 11:06:02 [Note] Plugin 'FEDERATED' is disabled. mysqld: Can't find file: './mysql/plugin.frm' (errno: 13) 101115 11:06:02 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 101115 11:06:02 InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB: File name ./ibdata1 InnoDB: File operation call: 'open'. InnoDB: Cannot continue operation.
When running ps -ef | grep mysql:
victor 5809 5688 0 11:08 pts/0 00:00:00 grep --color=auto mysql
I've tried purging MySQL and reinstalling it but I get the same errors every time.
Everything was working fine but I upgraded the Ubuntu Server software and things don't work anymore.