generating a boot image from source

Ok, this started out as a question but now sharing the issue and simple answer for anyone else interested.

BTW, the ubuntu filesystem from this step:

wget -c https:``//rcn-ee.com/rootfs/eewiki/minfs/ubuntu-16.04.3-minimal-armhf-2017-10-10.tar.xz

appears to need ‘auto usb0’ as shown in this section:


auto usb0
iface usb0 inet static
address 192.168.7.2
netmask 255.255.255.252
network 192.168.7.0
gateway 192.168.7.1

otherwise it didn’t work (for me).