I tried Precise, Trusty, Bionic and Cosmic amd64 Mini ISOs and all of them are booting successfully in QEMU with OVMF. However, none of them are booting in a UEFI physical machine.
It's strange this bug is present for three years: both Desktop and Server images have a functional bootloader. Those unused FAT12 partition take as much as 1/6 of the Mini image sizes.
I tried Precise, Trusty, Bionic and Cosmic amd64 Mini ISOs and all of them are booting successfully in QEMU with OVMF. However, none of them are booting in a UEFI physical machine.
It's strange this bug is present for three years: both Desktop and Server images have a functional bootloader. Those unused FAT12 partition take as much as 1/6 of the Mini image sizes.