I have created a bootable USB media (external USB drive, not an USB stick) from the 64bit Ubuntu Server 16.04 ISO image. Various tutorials explain how to do this. This time I used rufus from windows 10 using this tutorial: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows
However, the 16.04 server installation is hardcoded to work on /cdrom which, obviously, does not exist. The installation does not work.
I found this (old) thread, but the tricks described did not help. fail to install ubuntu server 14.04 64bit LTS from USB drive
I also searched for other alternatives (like installing over the network), but I could not find an easy solution. It seems quite outdated to hardcode the installation path to a hardware device (remember floppy drives?).
What is the easiest way to install Ubuntu Server 16.04 without a CD ROM?
cdrom
is actually not just the CDRom, but the ISO, and I've done numerous server installs from USB so I know it works out of the box. Depending on how you create the USB stick depends on how the system 'boots' to the installer (and it works fine via USB)