Mysql user denied¶
This seems common and can be fixed by running one of the steps at http://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html
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` echo $MYSQL_PKGS 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` echo $APACHE_PKGS sudo apt-get remove --purge $APACHE_PKGS
Then stop and uninstall and install to resolve this.