New here and had run endeavour easily before, upgraded my desktop to newer hardware, but now I am unable to install this. I can although install it using virtual box, but not directly onto my SSD.
BIOS up to date
Secure boot keys are removed
Secure boot is disabled
I have no idea what imageusb is doing but writing a Linux ISO is different than writing a Windows ISO.
A Linux ISO has to be written directly as-is to the media. The partition table, the filesystem and the data are all contained in the ISO. So when you said, you tried both fat32 and ntfs that didn’t really make any sense in this context.