win amd GPU passtrough

portainer-compose-stacks/windows/fix-grub-manual.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Manual GRUB fix - completely rewrite the GRUB_CMDLINE_LINUX_DEFAULT line
+
+set -e
+
+if [ "$EUID" -ne 0 ]; then 
+    echo "Please run as root: sudo $0"
+    exit 1
+fi
+
+echo "=== Fixing GRUB Configuration (Manual Method) ==="
+echo ""
+
+GRUB_FILE="/etc/default/grub"
+
+# Backup
+cp "$GRUB_FILE" "$GRUB_FILE.backup.manual.$(date +%Y%m%d-%H%M%S)"
+echo "✓ Backup created"
+
+# Replace the entire line with a clean version
+sed -i 's|^GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amd_iommu=on iommu=pt vfio-pci.ids=1002:1586,1002:1640 amdgpu.gttsize=131072 ttm.pages_limit=33554432 amdgpu.si_support=1 amdgpu.cik_support=1 radeon.si_support=0 radeon.cik_support=0"|' "$GRUB_FILE"
+
+echo "✓ GRUB configuration updated"
+echo ""
+echo "New configuration:"
+grep "GRUB_CMDLINE_LINUX_DEFAULT" "$GRUB_FILE"
+echo ""
+
+# Update GRUB
+echo "Updating GRUB..."
+update-grub
+
+echo ""
+echo "=== Fix Complete ==="
+echo ""
+echo "Changes made:"
+echo "  - Removed: amd_iommu=off"
+echo "  - Added: amd_iommu=on iommu=pt"
+echo "  - Added: vfio-pci.ids=1002:1586,1002:1640"
+echo ""
+echo "⚠️  REBOOT REQUIRED: sudo reboot"
+echo ""
+echo "After reboot, check:"
+echo "  cat /proc/cmdline | grep amd_iommu"
+echo "  Should show ONLY: amd_iommu=on"
+
+