Installing ROS Jade on VirtualBox (Ubuntu 15.10)

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Hi,

i tried the 64 and 32 Bit Version of Ubuntu 15.10 (Ubuntu-Gnome). In both cases my freshly installed Ubuntu can not find any ros-jade package:

$ sudo apt-get install ros-jade-ros-base
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package ros-jade-ros-base

But it is in the sources list:

# cat /etc/apt/sources.list.d/ros-latest.list 
deb http://packages.ros.org/ros/ubuntu wily main

and I did an apt-get update more than once (there wasn't any error). Some more info about the system:

# uname -a
Linux user 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 14:46:51 UTC 2015 i686 i686 i686 GNU/Linux