I have installed ubuntu into virtual box and could do with some help

below is the output from my terminal session when I try to install scratchbox

root@n900-dev:~# sudo ./maemo-scratchbox-install_5.0.sh -u xxxxxx
This script will install Scratchbox 1.0.16 'apophis' release to your computer.

Install options
---------------

Install from packages=apt
Scratchbox install path=/scratchbox
Scratchbox group=sbox
armel compiler=cs2007q3-glibc2.5-arm
i386 compiler=cs2007q3-glibc2.5-i386
armel devkits=perl:debian-etch:qemu:doctools:svn:git
i386 devkits=perl:debian-etch:doctools:svn:git
armel CPU transparency=qemu-arm-sb

Checking for prerequisites
--------------------------

Running as user root... yes
Not running as user root inside fakeroot... yes
Running outside of scratchbox... yes
Scratchbox installation existing... no
Running on Linux kernel... yes
Running on i386 architecture... yes
Host kernel binfmt_misc support... yes
Host kernel VDSO support... no
E: Host kernel VDSO support is incompatible with scratchbox.
E: You can disable VDSO support for this session with
E: 'echo 0 > /proc/sys/vm/vdso_enabled' as root
E: For a permanent solution you may add 'vm.vdso_enabled = 0'
E: to /etc/sysctl.conf and run 'sysctl -p' as root
root@n900-dev:~#


Not sure what option I need to choose???