Contents ----------- Introduction NT 5 - Install Win 8.1 - Dual Boot Win 10 - Install (1) Win 10 - Install (2) Win 10 - WIMBoot Win 11 - WIMBoot (1) Win 11 - WIMBoot (2) Win 11 - WIMBoot (3) Summary and notes GRUB4DOS --------------- GRUB4DOS - Device... GRUB4DOS - Fundamentals... GRUB4DOS - Command-Line GRUB4DOS - Install GRUB4EFI --------------- GRUB4EFI DiskPart ------------ DiskPart DiskPart - Command... DiskPart - USB... Misc. ----- WinPE USB... 64-bit Driver Signing NT 5 - TXTSETUP.OEM Add Hardware... UEFI, BIOS, GPT... UEFI Screen Res... Secureboot...

SVBus

Install Windows 10 (Stage 1)

This page covers installing Windows 10 on UEFI or BIOS firmware. The instructions can be adapted to install other Windows NT 6.*/10.* operating systems including Windows 7/8/8.1/10/11 (NOTE - Windows 7 UEFI support is limited and may not install on UEFI firmware).

A second system is used to setup a GRUB4DOS/GRUB4EFI bootable USB and to create VHD files that will be copied to the target system. The target system has an empty/unpartitioned internal disk. This walkthrough will include using WinPE to prepare the target disk.

Setup\Requirements (see here).

Devices\Files\Paths (see here).

Step 1 - Setup a GRUB4DOS/GRUB4EFI bootable USB drive (see here).

Step 2 - Create and mount Virtual Hard Disk (see here).

Step 3 - Apply install.wim to the mounted VHD (see here).

Step 4 - Install SVBus to Offline Image (see here)

Step 5 - Create Boot Files (see here)

Step 6 - Unmount Virtual Hard Disk (see here)

Step 7a - GRUB4DOS menu.lst (see here)

Step 7b - GRUB4EFI menu.lst (see here)

Step 8 - Copy VHD to USB (see here)

Stage 2 - (see here).

Setup\Requirements

• Windows 10 Host Operating System - used to prepare the bootable USB and VHD files.
• Target System.
• GRUB4DOS\GRUB4EFI bootable USB.
• Windows 10 installation media (DVD or .iso). This will also be used as a source for WinPE.
• GRUB4DOS for UEFI - version 2023-02-23 was used during testing. Download GRUB4DOS for UEFI from the http://grub4dos.chenall.net/categories/for-UEFI/ site.
• GRUB4DOS - version 0.4.6a 2020-03-04 was used during testing. Download GRUB4DOS from the http://grub4dos.chenall.net/ site -
• SVBus - available here. Version 1.3 was used during testing.

Devices/Files/Paths (Host system)

The following table has been included as a reference to devices, files and paths that are used in the instructions in this page -

Step 1 - Setup a GRUB4EFI bootable USB drive

Create a bootable USB drive - this process is covered in more detail here. Include WinPE as this will be required to prepare the target system in Stage 2.

Step 2 - Create Virtual Hard Disk

A VHD with two partitions is used as this supports booting the same file on UEFI and BIOS firmware. The first partition (FAT32 file system) will be used for the boot files required to load the operating system located in the second partition when the VHD is mapped using GRUB4DOS/GRUB4EFI (see here for more information).

For the Windows 10 tests, the following DiskPart commands were used to create a 20 GB virtual hard disk (change size, filename, path and mount point according to your own requirements) -

create vdisk file=D:\windows.vhd maximum=20480 type=fixed attach vdisk create partition primary size=100 format fs=fat32 label=vhdboot quick assign letter=V active create partition primary format fs=ntfs label=vhdos quick assign letter=W

Step 3 - Apply install.wim to the mounted VHD

Use DISM to apply (extract) the contents of install.wim to W: (the second partition in the VHD file was mounted as volume W: in the preceding step).

Dism /Apply-Image /ImageFile:E:\sources\install.wim /ApplyDir:W:\ /Index:1

Step 4 - Install SVBus to Offline Image

The SVBus driver can be installed to an offline system using the DISM tool. E.g. -

dism.exe /image:W: /Add-driver /Driver:D:\SVBus\svbus.inf /ForceUnsigned

Output -

Deployment Image Servicing and Management tool Version: 10.0.19041.844 Image Version: 10.0.19044.1288 Found 1 driver package(s) to install. Installing 1 of 1 - D:\SVBus\svbus.inf: The driver package was successfully installed. The operation completed successfully.

More detailed information about using DISM to install the SVBus, including errors linked to requiring the latest version of DISM, is available here

Step 5 - Create Boot Files

Use the bcdboot command to create boot files in Drive V:\ (the first partition in the virtual hard disk. See here for more information about bcdboot usage).

bcdboot W:\windows /s V: /f ALL

Specifying the /f ALL parameters will create BIOS and UEFI boot files, facilitating the use of the VHD on BIOS or UEFI firmware.

Step 6 - Unmount Virtual Hard Disk

Enter the following DiskPart commands to detach/unmount the virtual hard disk -

select vdisk file=D:\windows.vhd detach vdisk

Step 7a - GRUB4DOS Menu.lst

Add the following entries to R:\menu.lst (if the instructions here were followed there should be an existing file with an entry for WinPE) -

title windows.vhd - SVBus RAMDISK find --set-root --ignore-floppies /windows.vhd map --top --mem /windows.vhd (hd0) map (hd0) (hd1) map --hook root (hd0,0) chainloader /bootmgr title windows.vhd - SVBus FILEDISK find --set-root --ignore-floppies /windows.vhd map /windows.vhd (hd0) map (hd0) (hd1) map --hook root (hd0,0) chainloader /bootmgr

Note the use of the map --top --mem command - see here for more information.

See here for more information about the configuration file \menu.lst, including potential issues with multiple configuration files on the same system.

Step 7b - GRUB4EFI Menu.lst

Add the following entries to R:\EFI\grub\menu.lst (if the instructions here were followed there should be an existing file with an entry for WinPE) -

title windows.vhd - SVBus RAMDISK find --set-root /windows.vhd map --mem --top /windows.vhd (hd) chainloader (hd-1) title windows.vhd - SVBus FILEDISK find --set-root /windows.vhd map /windows.vhd (hd) chainloader (hd-1)

Note the use of the map --top --mem command - see here for more information.

See here for more information about the configuration file \EFI\grub\menu.lst, including potential issues with multiple configuration files on the same system.

Step 8 - Copy VHD to USB

Create directory \VHD in the USB drive partition 2 (S:\)

MD S:\VHD

Copy the VHD file to the directory created by the previous command -

copy D:\windows.vhd S:\VHD\windows.vhd /Z

In the next stage this file will be copied from the USB drive to the root of a partition on the target systems internal drive. The reason for copying windows.vhd to a sub-directory is to avoid GRUB4DOS/GRUB4EFI attempting to load it if it is copied to the USB drive root (in the next stage our menu.lst commands will locate the disk by searching for /windows.vhd).

The contents of the USB FAT32 partition should be similar to the following (there will be other sub-directories and files in R:\boot\ and R:\EFI\) -

• R:\boot\
• R:\boot\bcd
• R:\boot\boot.sdi
• R:\EFI\
• R:\EFI\boot\
• R:\EFI\boot\bootx64.efi
• R:\EFI\boot\winpebootx64.efi
• R:\EFI\microsoft\
• R:\EFI\microsoft\Boot\
• R:\EFI\microsoft\Boot\BCD
• R:\sources\boot.wim
• R:\bootmgr
• R:\winpebootmgr

Contents of the USB NTFS partition -

• S:\VHD\windows.vhd

Proceed to Stage 2

Proceed to stage 2 after completing the steps listed above (see here)

Document date - 12^th April 2023