It's not often I install anything from physical media anymore, but it still has it's uses. This USB stick, will be used to install ESXi, on my Intel NUC's, and the Mac Mini, in am upcoming post. I'll explore PXE boot in the future, as well, once the core infrastructure is completely operational.
Download the ESXi ISO from the VMware Download Website. This ISO needs to be written to the USB, and be made bootable. There are many applications which can do this for you, in this example, we'll be using UNetbootin.
Download the appropriate version for your OS. In this case, we'll be using apt-get to install UNetbootin on Ubuntu 18.04.
Open a terminal console, and type the following, to add the apt repository: sudo add-apt-repository ppa:gezakovacs/ppa
Type: sudo apt-get update
Then type: apt-get install unetbootin
Type Y, to install
Write ISO to USB, and Make Bootable.
From the Ubuntu desktop. select activities, and search for unetbootin, and click to open.
UNetbootin gives the option to select, and download a distribution/version, or an ISO can be chosen.
Select Diskimage, navigate to, and select the VMware ESXi downloaded from earlier. Click OK to begin.
Extracting files to be written to USB, and Installing bootloader.
Click Exit, when the installation is complete.
Viewing the USB in a file manager, the VMware install files can be seen.