Thanks for the page! 

But, couldn't most of your from-source instructions be replaced with a simple apt-get call?

sudo apt-get install zoneminder

Your last two command line instructions, however, I found to be very much necessary.

 sudo ln -s /etc/zm/apache.conf /etc/apache2/conf.d/zoneminder.conf

 sudo adduser www-data video

(I executed this first one, then lost track of this web page, spent hours trying to debug the black screen "shared memory not initialized by capture daemon" / "shared memory not valid" / "can't get shared memory id"  issues and finally found that I could fix them with "chmod 606 /dev/video0"... but turns out that your adduser fix is the more appropriate fix )

 Everything appears to be working now!  Thanks!