Solved Problems


Mysql user denied

This seems common and can be fixed by running one of the steps at

Mysql unknown instance

This seems to happen sometimes with the following exception:

ProcessExecutionError: None
Command: service mysql restart
Exit code: 1
Stdout: ''
Stderr: 'restart: Unknown instance: \n'

To resolve this the following seems to work:

MYSQL_PKGS=`sudo dpkg --get-selections | grep mysql | cut -f 1`
sudo apt-get remove --purge $MYSQL_PKGS

Horizon dead on start

If you get the following (when starting horizon) in ubuntu 11.10:

.: 51: Can't open /etc/apache2/envvars


APACHE_PKGS=`sudo dpkg --get-selections | grep apache | cut -f 1`
sudo apt-get remove --purge $APACHE_PKGS

Then stop and uninstall and install to resolve this.