Move from CD-ROM images to Hard Disk images.

This involves a new img/ folder, a new program called mkbootimg, the accompanying chroma.json file that instructs mkbootimg how to create the image.

An extra Powershell script is included for brevity.

buildImage.ps1

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+#requires -RunAsAdministrator
+param ([uint64]$diskSize=256MB, $driveLetter='Z')
+# Thanks https://github.com/VoidNV/ZenithOS/blob/master/make.ps1!
+
+$vhdPath = ".\Chroma.vhd"
+
+if((Get-WindowsEdition -Online).Edition -eq "Home") {
+    Write-Host -ForegroundColor Red `
+    "Windows 10 Home does not support Hyper-V. This install requires Professional or higher."
+    exit
+}
+
+
+if (-not (Get-Module -ListAvailable -Name "Hyper-V"))
+{
+	Write-Host -ForegroundColor Red "`nError: Hyper-V module not installed.`n"
+	Write-Host "The following Windows Features need to be enabled under " -NoNewLine
+	Write-Host -ForegroundColor Yellow "Hyper-V" -NoNewLine
+	Write-Host ":`n"
+	Write-Host -ForegroundColor Black -BackgroundColor Yellow "Hyper-V Module for Windows PowerShell" -NoNewLine
+	Write-Host "  " -NoNewLine
+	Write-Host -ForegroundColor Black -BackgroundColor Yellow "Hyper-V Services"
+
+	$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Launch the Windows Features dialog and exit."
+	$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Exit. You can launch the Windows Features dialog yourself later."
+	$options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no)
+	if ($Host.UI.PromptForChoice("", "`nLaunch the Windows Features dialog to enable them?", $options, 0) -eq 0)
+	{
+		Start-Process "OptionalFeatures"
+	}
+	exit
+}
+
+function New-FAT32VHD {
+    $uuid = $null;
+    if(Test-Path $vhdPath) {
+        Remove-Item $vhdPath
+    }
+
+    Hyper-V\New-VHD $vhdPath -SizeBytes $diskSize -Fixed |
+    Mount-VHD -Passthru -NoDriveLetter            |
+    Initialize-Disk -PartitionStyle GPT -PassThru |
+    New-Partition -UseMaximumSize                 |
+    Format-Volume -FileSystem FAT32 -Force        |
+    Get-Partition                                 |
+    Set-Partition -NewDriveLetter $driveLetter
+
+    Write-Host "Created disk of size" ($diskSize / 1MB) MiB.
+
+    Copy-Item -Recurse -Force img\* ${driveLetter}:\
+
+    Dismount-VHD $vhdPath
+
+}
+
+function Update-VHD {
+   Mount-VHD $vhdPath -NoDriveLetter -PassThru |
+   Get-Partition                               |
+   Set-Partition -NewDriveLetter $driveLetter
+
+   Copy-Item -Recurse -Force img\* ${driveLetter}:\
+
+   Dismount-VHD $vhdPath
+}

chroma.json

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+{
+    "disksize": 80,
+    "config": "img/boot/config",
+    "initrd": {
+        "type": "tar",
+        "directory": "img/boot"
+    },
+    "partitions": [
+        {
+            "type": "boot",
+            "size": 4
+        },
+        {
+            "type": "Microsoft basic data",
+            "size": 76,
+            "name": "Chroma Data"
+        }
+    ]
+}

img/boot/config

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+kernel=exe