I would be very grateful if someone could help to create a bootable USB stick that really works. Instead of booting I get the following error message:
Gfx.c32: not a COM32R image
boot:
I'm using the built-in Startup Disk Creator in Ubuntu 14.04. As the USB device I'm using an empty 8GB USB flash drive. The ISO image that I'm trying to install is Ubuntu 18.04.
I followed the instructions of the Startup Disk Creator app. It automatically chose the image and the USB device. After some time I got the message Installation complete.
The problem is that when I set the USB device as the first bootable device I get the message indicated above at the beginning of this post.
PS: I have looked up the answers to an equivalent question, but they didn't work for me. Is there a new version of Startup Disk Creator which has fixed bug 1325801?