From 7e3e24780d0237982af1cf0539ae8491892723ca Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sun, 9 Aug 2026 22:16:20 +0200
Subject: [PATCH] feat: Enforce a minimal disk size per Windows version (#2122)

---
 src/define.sh  | 66 +++++++++++++++++++++++++++++++++++++++++---------
 src/install.sh | 14 +++++++++++
 2 files changed, 69 insertions(+), 11 deletions(-)

diff --git a/src/define.sh b/src/define.sh
index be4d97a9..5e439391 100644
--- a/src/define.sh
+++ b/src/define.sh
@@ -963,27 +963,71 @@ getRequiredMemory() {
 
   case "$id" in
     "win11"* )
-      echo 2147483648 ;;
+      echo "2G" ;;
     "tiny11"* | "core11"* )
-      echo 2147483648 ;;
+      echo "2G" ;;
     "win10"* | "tiny10"* )
-      echo 2147483648 ;;
+      echo "2G" ;;
     "win2025"* | "win2022"* | "win2019"* | "win2016"* )
-      echo 2147483648 ;;
+      echo "2G" ;;
     "win81"* | "win7x64"* )
-      echo 2147483648 ;;
+      echo "2G" ;;
     "win7x86"* | "winvista"* | "win2012"* )
-      echo 1073741824 ;;
+      echo "1G" ;;
     "win2008"* | "win2003"* )
-      echo 536870912 ;;
+      echo "512M" ;;
     "winxpx64"* )
-      echo 268435456 ;;
+      echo "256M" ;;
     "win9"* | "winnt4"* | "winxpx86"* | "win2k"* )
-      echo 136314880 ;;
+      echo "130M" ;;
     "reactos"* )
-      echo 136314880 ;;
+      echo "130M" ;;
     * )
-      echo 136314880 ;;
+      echo "130M" ;;
+  esac
+
+  return 0
+}
+
+getRequiredDisk() {
+
+  local id="${1,,}"
+
+  case "$id" in
+    "win11"* )
+      echo "32G" ;;
+    "tiny11"* )
+      echo "8G" ;;
+    "core11"* )
+      echo "4G" ;;
+    "win10"* )
+      echo "16G" ;;
+    "tiny10"* )
+      echo "10G" ;;
+    "win2025"* | "win2022"* | "win2019"* | "win2016"* | "win2012"* )
+      echo "32G" ;;
+    "win81"* | "win7"* | "winvista"* )
+      echo "16G" ;;
+    "win2008"* )
+      echo "10G" ;;
+    "win2003"* )
+      echo "4G" ;;
+    "winxp"* )
+      echo "2G" ;;
+    "win2k"* )
+      echo "1G" ;;
+    "win9x"* )
+      echo "512M" ;;
+    "win98"* )
+      echo "256M" ;;
+    "win95"* )
+      echo "100M" ;;
+    "winnt4"* )
+      echo "128M" ;;
+    "reactos"* )
+      echo "512M" ;;
+    * )
+      echo "100M" ;;
   esac
 
   return 0
diff --git a/src/install.sh b/src/install.sh
index 51db6f4b..f0d1761e 100644
--- a/src/install.sh
+++ b/src/install.sh
@@ -160,6 +160,8 @@ configureMachine() {
     return 79
   fi
 
+  setDiskMinimum "$DETECTED" || return 79
+
   if ! setMachine "$DETECTED" "$iso" "$dir" "$desc"; then
     error "Failed to configure the virtual machine for $desc!"
     return 80
@@ -401,6 +403,7 @@ startInstall() {
 
   if [ -z "$CUSTOM" ] && [[ "${VERSION,,}" != "http"* ]]; then
     checkMemory "$VERSION" || return 67
+    setDiskMinimum "$VERSION" || return 67
   fi
 
   # Work from the temporary directory so the persistent source path can
@@ -1454,6 +1457,17 @@ checkMemory() {
   return 0
 }
 
+setDiskMinimum() {
+
+  local id="$1"
+  local required
+
+  required=$(getRequiredDisk "$id") || return
+  DISK_MINIMUM="$required"
+
+  return 0
+}
+
 restoreBootMode() {
 
   local current="${BOOT_MODE:-}"