Ubuntu - 12.04 - MySql won't start by using service mysql start
mysql, ubuntu
Solution
MySql does not start when disk space is full, and does not give a detailed error message. To check the free space on the server run:
df -h /
Problem
The only way I was able to get MySql to start was to issue: mysqld When I issued this command, it started rolling back some database transactions that were conflicted. I have tried issuing service mysql stop and all I get is Unknown instance: Now when I try to upload anything to WordPress I get a HTTP 500 error. I am assuming this is because MySQL is running under a different user. Any thoughts on how to get this working again?