What would be the entry into BootBCD for g4d?
Enable Launch CSM does that turn UEFI OFF ?
Or Does it simply add BIOS support to UEFI.
In any case you need BIOS support for booting Grub4dos
and Grub4dos does not work for only UEFI booting.
Best is when both options are presented in BBS Menu like for
Mobo Gigabyte GA-Z77MX-D3H that allows to use F12 Boot Menu
http://reboot.pro/to...sk/#entry164379
To add Grub4dos to Boot Manager Menu, First you need to set User Account Control OFF and Reboot
You need to open Administrator Command Window at C:\Windows\system32 (use R-mouse at cmd.exe)
For USB-harddisk FAT32 Boot Drive E: with file Boot\BCD then run commands as
bcdedit.exe /store E:\Boot\BCD /enum all
bcdedit.exe /store E:\Boot\BCD /create /d "Start GRUB4DOS" /application bootsector
This command will give {guid} in return and you can use R-mouseclick to Mark and copy(via Enter) the {guid}
bcdedit.exe /store E:\Boot\BCD /set {guid} device boot
bcdedit.exe /store E:\Boot\BCD /set {guid} path \grldr.mbr
bcdedit.exe /store E:\Boot\BCD /displayorder {guid} /addlast
Run bcdedit again to check result like
bcdedit.exe /store E:\Boot\BCD /enum all
will show that has been added something like
id {6f9ae832-c03a-11e1-8098-00501848e329}
device boot
path \grldr.mbr
description Start GRUB4DOS
Much easier is to make use of program BOOT_IMG.exe (also part of IMG_XP package)
BOOT_IMG.exe can be used to add Grub4dos to Boot Manager Menu
and make grub4dos boot entry for some Boot Image file like LiveXP_WIM.ISO or 7pe_x86_E.iso
The ISO files can be located on FAT32 BOOT drive, but the VHD files for portable XP or Win7 must be located on NTFS partition.
http://www.911cd.net...showtopic=23553
Remember that:
BIOS is booting via E:\Boot\BCD
UEFI is booting via the UEFI search filename E:\efi\boot\ bootx64.efi and then via E:\efi\microsoft\boot\BCD