You get around this by installing the required driver during setup. (Assuming you're doing a clean, custom install. If you're not, you may run into this issue because... well, bug.)
Precisely how you do this depends on the version of Windows you're trying to install, which you haven't specified. And no, there's no log, but your OEM should be aware of the issue and have a KB telling you to install the appropriate drivers, and how.
As to which driver it is, it's usually a disk or RAID driver. So that's where I'd start. Get the relevant iSCSI drivers, and if appropriate, any drivers for your RAID card prepped so you can provide them to Windows during the setup.