I've spent a LOT of time trying to research this, but haven't found anything directly helpful yet. Hopefully I didn't "miss" any obvious previous posts/etc on this question (?)...
For fast background, I've been super happily using (mainly) Image For Linux (IFL) for almost 5 years now, most recently version 3.64.
I'm 99% using it for "simple" Windows 10 imaging purposes. I've found (at least for me) that IFL is very simple & fast & reliable, so I (personally) "prefer" it over IFW.
Recently I bought the 4.x Bundle upgrade and finally got around to testing it out this weekend on a test/practice computer.
I went thru my regular/routine process to create the "new" IFL 4.05 bootable UFD (USB Flash Drive).
By the way, I usually use the ifl_nonet_en_gui_x64 version, as I did this time.
When I booted to the new IFL 4.05 UFD, it "flashed" the following three lines at the top left of the display for about 3 to 4 seconds or so - then eventually booted up OK (seemingly) into the IFL start screen:
Failed to open \EFI\Boot\? - Invalid Parameter
Failed to load image ??: Invalid Parameter
start_image() returned Invalid Parameter, falling back to default loader
Any ideas on why I'm getting these messages/errors?
As I mentioned, it seems to eventually start ok - as it indicates it is "falling back to default loader". And I did some simple/fast image validation tests that worked fine.
But I don't think I've ever seen anything like this before over the last 5 years with IFL...
Are these "normal" and "can be safely ignored" messages (?).
I have tried a LOT of things in my testing/research on this to "resolve" these "error" messages, such as re-creating the IFL 4.05 UFD on two other computers with same results/messages.
I also successfully created the IFW TBWINRE UFD which boots with no issues.
I also tried creating the IFL 4.05 UFD with the "network" installer package and get the same above messages. I even had inadvertently grabbed the 4.03 CUI installer files a while back - and I now created a 4.03 CUI UFD and also got the exact same above 3 message lines.
I'm planning to do more testing/research, but I need to take a break for now...

But, this seems like a fairly uniform and consistent result so far - at least on the three Dell Precision 3640 workstations I've been testing on.
If anyone might have some insight or thoughts on this I'd greatly appreciate it!
In particular, whether this is "known" behavior and can be "safely ignored" --or-- whether this is something to be more concerned about and any ideas on how to hopefully (?) resolve these apparent errors (?). For example, I've already upgraded the BIOS/etc on the main practice/test PC...
If I may need to reluctantly consider using IFW instead of IFL, that is an option. But I've had excellent success with IFL for years...
Thanks everyone!
PS Please forgive any typos/etc!
