Is it possible to Install Ubuntu Server 18.04 Alternate CD (standard installer iso ubuntu-18.04.2-server-amd64.iso) using a grub loopback device from an USB key ?
I found this question but it seems to be old. grub2 loopback booting ubuntu server iso
A comment by "Marius Gedminas" say that this does not work with 16.04 LTS too.
I tried many way but I always have "Incorrect CD-ROM detected" error.