I'm going to install Ubuntu 18.04 Desktop on 64 real machines.
I followed this guide and It worked well on virtual machine.(although that is for 16.04)
How do I create a completely unattended install of Ubuntu Desktop 16.04.1 LTS?
But when I tried this on real machine with USB, It does boot, but It proceed normal install step. (not automated)
I'm assuming append file=/cdrom/ks.preseed
part on .cfg is a matter because definitely I'm using USB instead of CD/DVD.
So I have tried several times that changing path to 'ks.preseed', '/ks.preseed', './ks.preseed', '/dev/sda/ks.preseed', /dev/sda1/ks.preseed' and all try has failed.
Time is flowing and I installed manually on 4 machines in a hurry. and now I still have 60 empty machines.
Any advice or help gonna be appreciated. Many thanks for reading this.