I'm afraid I've been unable to reproduce this on my UEFI system. I did an erase-whole-disk install and it just worked (with the exception of some screen corruption at boot).
The only thing I can think of is that a UEFI GRUB core image is somehow trying to find and load BIOS-platform GRUB modules, or vice versa. The output of 'sudo boot_info_script' from http://bootinfoscript.sourceforge.net/ (the boot-info-script package is only version 0.60 which doesn't support UEFI, so please make sure to use at least version 0.61) may be useful in tracking this down.
I'm afraid I've been unable to reproduce this on my UEFI system. I did an erase-whole-disk install and it just worked (with the exception of some screen corruption at boot).
The only thing I can think of is that a UEFI GRUB core image is somehow trying to find and load BIOS-platform GRUB modules, or vice versa. The output of 'sudo boot_info_script' from http:// bootinfoscript. sourceforge. net/ (the boot-info-script package is only version 0.60 which doesn't support UEFI, so please make sure to use at least version 0.61) may be useful in tracking this down.