My Dell Latitude E7450 (A17 set to UEFI) with integrated graphics only is able to boot Clover from the USB stick I created, but the High Sierra installation is not an option in the Clover menu - only my hard drive partitions are listed. I have tried creating the stick by manually creating the USB install stick using this guide and then replacing the files in the EFI partition with the generic bootpack + E7450_HD5500_Only_A17_HS.zip from here.
The stick is a USB 3.0 stick and I've tried it both in an "on board" USB 3.0 port and in a USB 2.0 port in the dock - same result.
The stick was created in a VirtualBox machine running Sierra. Since the App Store update resulted in one of those ~20 MB downloads, I used macOS High Sierra patcher to download the full installer.
Please advice what futher information I should provide to debug this. Thanks in advance.