Adding guidance on software installation

Change-Id: Ia415dd7971e94b866c31648dd821df738dd3bba3
debian/ubuntu don't use chkconfig

backport: havana
Change-Id: I1a1ec97def10a9f2fdcca055992a6d1d4467887e
Merge "Adding guidance on software installation"
Merge "debian/ubuntu don't use chkconfig"