package request-tracker3.6 3.6.7-2 failed to install/upgrade: subprocess post-installation script returned error exit status 1

[sxfo]

Binary package hint: request-tracker3.6

Description: Ubuntu 8.10
Release: 8.10

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 8.10
ErrorMessage: subprocess post-installation script returned error exit status 1
Package: request-tracker3.6 3.6.7-2
PackageArchitecture: all
SourcePackage: request-tracker3.6
Title: package request-tracker3.6 3.6.7-2 failed to install/upgrade: subprocess post-installation script returned error exit status 1
Uname: Linux 2.6.27-9-generic i686

[Dominic Hargreaves (dom)]

The error is:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2).
unable to connect to mysql server.
error encountered creating user:

which means that you've configured RT to use MySQL, but there is no MySQL database running on the host.