Hi Is there any reason why I can't chainload an MS Windows Installer (on USB)? Currently when I try this I get "UnknownError" when I type "boot" at the grub command line.
The MS Windows ISOs are a bit weird: found here: https://www.microsoft.com/en-gb/software-download/windows10ISO They are not partitioned and have a UDF filesystem instead of ISO 9660 or FAT32. So my hardware cannot directly boot this. But I was assuming that all I would need to do would be ask grub to chainload the ISO as it has a UDF driver. I can read the Windows Boot media after I "insmod udf" and then "chainloader /efi/boot/bootx64.efi" which results in the output "/EndEntire". But when I then type "boot" I get "UnknownError". Has anyone experienced this? Any ideas about what isn't working? I freely admit it could be a Microsoft weirdness that requires their input, I just wanted to exhaust options here first. Thanks
