"Why" do you want to install "debian-7.8-lxde-4gb-armhf-2015-03-01" ?
At the time, the BeagleBone Green, was populated with the "latest"
eMMC module from the memory Manufacture. This module used a newer
spec of eMMC we had not seen before.. Thus to support the BBG, we had
to patch our linux kenrel to make it work. This hardware patch made
it into our kernel repo on "2016-06-15".. So a year and half "after"
that image.
So: "Why"... Why do you "need" to install that version? It can be
done, but it will take some effort on your behalf, or you could just
use a newer image..
Regards,
--
Robert Nelson
https://rcn-ee.com/