Comment 19 for bug 854866

Unfortunately the ganglia package from "proposed" is not working for me (Oneiric).
Here is the results:

Selecting previously deselected package libdbi1.
(Reading database ... 201836 files and directories currently installed.)
Unpacking libdbi1 (from .../libdbi1_0.8.4-5.1_i386.deb) ...
Selecting previously deselected package librrd4.
Unpacking librrd4 (from .../librrd4_1.4.3-3.1ubuntu2_i386.deb) ...
Selecting previously deselected package gmetad.
Unpacking gmetad (from .../gmetad_3.1.7-2ubuntu0.1_i386.deb) ...
Processing triggers for ureadahead ...
Processing triggers for man-db ...
Setting up ganglia-monitor (3.1.7-2ubuntu0.1) ...
Adding system user: ganglia.
useradd: group ganglia exists - if you want to add this user to that group, use -g.
dpkg: error processing ganglia-monitor (--configure):
 subprocess installed post-installation script returned error exit status 9
Setting up libdbi1 (0.8.4-5.1) ...
Setting up librrd4 (1.4.3-3.1ubuntu2) ...
Setting up gmetad (3.1.7-2ubuntu0.1) ...
Adding system user: ganglia.
useradd: group ganglia exists - if you want to add this user to that group, use -g.
dpkg: error processing gmetad (--configure):
 subprocess installed post-installation script returned error exit status 9
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
Errors were encountered while processing:
 ganglia-monitor
 gmetad
E: Sub-process /usr/bin/dpkg returned an error code (1)