Comment 3 for bug 1258398

The problem is with this script:
elementary-os-beta-transition.postinst

In line 6:
set -e

But then, later at line 45 has:
. /etc/upstream-release/lsb-release || true

So, looks like the error can be (or should be) safely ignored (you can "sudo touch /etc/upstream-release/lsb-release").
But! I don't know the intentions "set -e", and then "|| true" ?? that's inconsistent at best, I would say it is a bug ;-)

Regards!