raspi image-specs root partition size limitation

[Sebastian Kuzminsky <seb@highlab.com>]

Hi there, I'm using image-specs to make a custom Raspberry Pi image for 
LinuxCNC (https://www.linuxcnc.org).  My fork is here: 
https://github.com/SebKuzminsky/image-specs/

As you can see I'm mostly adding a bunch of standard debian packages and 
a little bit of system configuration to make things easier for LinuxCNC 
users.  Because I'm adding packages, I had to increase the size of the 
root partition.

I found that if I increase it to 8192M or larger, it fails to resize 
itself to fill the micro-SD card on the first boot.  8000M works fine. 
I'm fine for now staying below 8 gigs, just thought I'd report the issue 
here.

Thanks for a great tool :-)


--
Sebastian Kuzminsky