The mass storage F6 drivers are not optional.
Renesas Electronics uPD720201 & uPD720202 USB 3.0 Host Controller are not optional
LSI MegarAID 9271 Driver
INTEL ICH7 ICH8 ICH9 ICH10
Drives attached to Raid Controller MUST HAVE initialized container to install on.
|Precision T7610||Windows10||T2W1W||A02||04/10/2018||965 MB||Download Now|
You download Cab File and save to USB Flash drive
You then use 7zip to extract the files.
You will have to point to the storage drivers for both intel chipset and LSI Raid Controller if you use one.
You then install windows with WIN10 DVD
Thanks but I use Linux. All OSes (3 things, 2 on internal drives, 1 on USB) are installed and working but only with F12 startup. External install/livecd USB media boot also only works with F12.
What is the boot sequence on the UEFI BIOS of your workstation?
Do you see an error after turning on the workstation or do you see nothing at all on the display? Just a wild guess, it seems the first entry in the boot sequence wants running a non bootable binary in the EFI partition and stops here. It is odd you can boot from the EFI partition from the F12 menu but not on an unattended boot.
Note 1: my Precision Tower 3420 is able to rebuild the boot sequence automatically, at least with Dell's Ubuntu flavour, once the entries on the boot sequence have been removed. It automatically makes two entries on next boot:
I understand you may prefer not trying it, as each entry has a path to a specific bootloader in the EFI partition. It all depends how much you have customized your setup.
Note 2: you can try moving one of the bootable entries in the boot sequence (i.e. one of the entries that work from the F12 menu) to the first position on that list, so the UEFI BIOS has a chance to find a valid bootloader on the EFI partition and use it. Cannot be really helpful here, all my computers (either UEFI or not) have a single entry in their boot sequences to start them from their internal drives. Each time I want to reinstall them (most of these computers run OpenBSD) I add the "USB HDD" boot option to that list, and remove it after upgrading/reinstalling the operating system. I had never been a big fan of dual booting.
May this knowledge base article help you? Dell suggests disabling legacy option ROMs and booting in a UEFI-only environment for 7th. gen. processors forward. If possible, enable secure boot too.
Edit: I see you computer is from 2014, it is difficult to me tracking how old a Dell computer is just looking at the model number. Obviously, it cannot have a 7th. gen. processor. However it may help following the knowledge base article advice.
If I disable legacy ROMs then on-board RAID controller with drives stops working in BIOS - cannot boot from it then. Anyway, boot from USB is not possible too - can't find signed binaries (I put there shimx64.efi, EFI can't find it on booting). Boot from F12 not working this way too.