Install Windows 1.0 in Qemu:
============================
This is a guide to set up Windows 1.x in Qemu with Virtulisation suport (if on a x86 system).
You will need:
Microsoft DOS 3.x (Dos 6.x+ or PC-Dos from the 90s will not work with windows 1.0 without extra work arounds).
Microsoft Windows 1.x (1985 - 1987)

You will also want qemu system x86_64 installed and ideally kvm support if you want to use real hardware and not emulation (for the cpu).


1. Create a script with these contents:

qemu-system-x86_64 \
   -cpu host \
   -machine accel=kvm \
   -m 1 \
   -boot d \
   -vga std \
   -hda Wintel-v1.qcow2 \
   -name "MS Windows 1.x" \
   -monitor stdio \
   -display sdl \
   -rtc base=localtime \
   -drive format=raw,if=floppy,media=disk,file=DOS.img


Save it as Wintel-v1-VM.sh . Can remove -cpu & -machine lines if you want emulation rather then virtualisation.

With the Wintel-v1-VM.sh script, add all three windows disks and a ms-dos boot disk in the same directory. In my case the DOS disk is DOS.img, and the 3 windows disks are disk0#.img each.
Create a qemu disk by:  "qemu-img create -f qcow2 Wintel.qcow2 99M" and have it in the same directory.

Run the Wintel-v1-VM.sh script and there will be a dos window. Just press entre repetially to skip the time/date menus. There allready correct due to your real hardware underneath that is set correctly.

To format the harddrive run:
A> fdisk
    1. Create DOS Partition
    1. Create Primary DOS partition
    Y then enter

*once rebooted, go through the time/date menus again and run:
A> format C: /V /S
    Y
    Label Name: Wintel

*Migrate system to the HDD By:
A> sys C:
A> Copy A:\*.* C:\


*Now change the -boot to c on the Wintel-v1-VM.sh script and reboot the vm.

Now when booted. under the qemu shell, change the floopy to the windows installer by "change floppy0 disk01.img"
then run:
C> A:
A> setup

Now follow the setup guide, I provide the order for steps which are done through DOS and Qemu-shell. I will list full names on the Items and you type letter or number needed.
1. Continue [C]
2. C:\WINDOWS [Enter]
3. Continue [C]
4. IBM and Compatibles (USA) [1]
5. IBM Personal System/2 Mouse [7]
6. IBM Personal System/2 Model 50, 60, 80 [2]
7. "change floppy0 disk02.img" *qemu shell
8. Continue [C]
9. Continue [N] *No printers
10. "change floppy0 disk03.img" *qemu shell
11. Continue [C]
12. Your now done! It should have a greeting on how to run WIN for first boot.

The windows exacutable will be in C:\WINDOWS\WIN

Now you will want to set up auto boot for windows. To do this:
* Not known to work with autoexec.bat yet. I try to update latter if it works.


Sources:
https://unix.stackexchange.com/questions/530662/how-to-mount-a-virtual-floppy-disk-into-a-virtual-machine#530758
https://stackoverflow.com/questions/52929723/qemu-eject-complains-device-is-not-found-while-it-is-there#52939525
https://www.ahuka.com/dos-lessons-for-self-study-purposes/dos-lesson-8-format-copy-diskcopy-xcopy/
https://www.wikihow.com/Install-Windows-1.Xx
https://computernewb.com/wiki/QEMU/Guests/Windows_1.x-2.x
https://computing.net/answers/windows-31/how-to-make-windows-31-start-automatically/12412.html
https://www.computerhope.com/issues/ch001315.htm
https://www.betaarchive.com/forum/viewtopic.php?t=3610
https://www.computerhope.com/ac.htm

Date: January 6th 2024.