Never had this myself in all my testing of the ISO file. Hopefully they address this use case 

Worked pretty well when I implemented it; but good to know there is an issue. I’ll be installing it all manually in my environment though. Thanks for sharing!

I haven’t seen this problem either.

But to be honest, I had no USB devices attached to my test server...

Good find I don’t imagine many people have had additional drives with data they want to keep attached while running through the process.

Hello,
interesting device and interesting error you ran into.

The ISO formats everything it can see. Maybe we can add something that excludes USB drives. I will add it to the bugs list.

Thanks for reporting!

Best regards,
Hannes

They’re very cool devices.  I looked at getting one or something like it a while back.  The one I looked at was just the case and software, you supply your own drive and I having a couple of old SSD’s laying around thought I could easily use a 250GB or 500GB SSD would have a fair amount of space for ISO’s, etc.  However, I came across Ventoy so that I could multiboot ISO’s from an on-screen menu and it’s been pretty easy to setup, and was free.  Seems like a pretty good solution and has worked well for me for a year or two now.  However, I still like the drive idea because of the difference in capacity.  Strange about the Hardened Repo ISO, but good to know as I wouldn’t want to have my USB thumb drive reformatted when installing the ISO on a server here in the near future.

 I personal like the screen and hardware buttons to select the ISO. Really low level and almost any device I’ve tested with, picks it up as an external drive and boots from it.

Yes, that’s what originally drew me to this sort of device.  That said, I’m a bit cheap, and maybe someday I’ll still do something like this, but Ventoy is a pretty good poor man’s version for now.  Probably the biggest argument for me though is that you can still get a lot more capacity out of a drive like this than on a thumb drive, but I do also like that the thumb drive fits on my keychain and in my pocket.  But I absolutely struggle with capacity on the thumb drive, so glad to see that these devices still exist.  I suppose the best solution is to do both….thumb drive for stuff I want to carry with me, but the IODD devices for the big stuff that I don’t need in my pocket every day.