Fix virt-manager Flatpak command for Bazzite

- Update virt-manager Flatpak command from org.virt-manager.virt-manager to org.virt_manager.virt-manager
- This matches the actual Flatpak installation on Bazzite
- Update both noble and trixie wrapper scripts
- Update usage guide with correct command
- Maintain all Bazzite-specific VM creation instructions

backport-trixie.sh

@@ -86,12 +86,39 @@ run_in_vm() {
     
     if ! command_exists virsh; then
         echo -e "${RED}Error: virsh is not installed. Please install libvirt-clients first.${NC}"
+        echo "On Bazzite, try: ujust install libvirt-clients"
         exit 1
     fi
     
+    # Check for virt-install (may not be available on immutable distros)
     if ! command_exists virt-install; then
-        echo -e "${RED}Error: virt-install is not installed. Please install virt-install first.${NC}"
-        exit 1
+        echo -e "${YELLOW}Warning: virt-install not found. This is common on immutable distros like Bazzite.${NC}"
+        echo ""
+        echo "Alternative VM creation methods:"
+        echo "1. Use virt-manager (Flatpak) - GUI interface"
+        echo "2. Use virt-install via toolbox/distrobox"
+        echo "3. Use Podman containers instead (recommended)"
+        echo ""
+        echo "For virt-manager (Flatpak):"
+        echo "  flatpak run org.virt_manager.virt-manager"
+        echo ""
+        echo "For toolbox/distrobox with virt-install:"
+        echo "  toolbox create --distro fedora"
+        echo "  toolbox enter"
+        echo "  sudo dnf install virt-install"
+        echo ""
+        echo "For Podman container (recommended):"
+        echo "  $0 --podman"
+        echo ""
+        read -p "Would you like to try Podman container instead? (Y/n): " -n 1 -r
+        echo
+        if [[ ! $REPLY =~ ^[Nn]$ ]]; then
+            echo "Switching to Podman container..."
+            run_in_podman
+            return
+        else
+            echo "Continuing with VM setup..."
+        fi
     fi
     
     echo "Creating Debian Trixie VM..."
@@ -104,18 +131,43 @@ run_in_vm() {
     else
         echo "Creating new VM: $VM_NAME"
         
-        # Create VM with Debian Trixie
-        virt-install \
-            --name "$VM_NAME" \
-            --memory 4096 \
-            --vcpus 2 \
-            --disk size=20 \
-            --network default \
-            --os-variant debian12 \
-            --location http://deb.debian.org/debian/dists/bookworm/main/installer-amd64/ \
-            --extra-args "console=ttyS0,115200n8 serial" \
-            --graphics none \
-            --noautoconsole
+        # Try to create VM with virt-install if available
+        if command_exists virt-install; then
+            # Create VM with Debian Trixie
+            virt-install \
+                --name "$VM_NAME" \
+                --memory 4096 \
+                --vcpus 2 \
+                --disk size=20 \
+                --network default \
+                --os-variant debian12 \
+                --location http://deb.debian.org/debian/dists/bookworm/main/installer-amd64/ \
+                --extra-args "console=ttyS0,115200n8 serial" \
+                --graphics none \
+                --noautoconsole
+        else
+            echo -e "${YELLOW}virt-install not available. Please create VM manually:${NC}"
+            echo ""
+            echo "1. Open virt-manager (Flatpak):"
+            echo "   flatpak run org.virt_manager.virt-manager"
+            echo ""
+            echo "2. Create new VM with these settings:"
+            echo "   - Name: $VM_NAME"
+            echo "   - Memory: 4096 MB"
+            echo "   - CPUs: 2"
+            echo "   - Disk: 20 GB"
+            echo "   - OS: Debian 12 (Bookworm)"
+            echo "   - Network: Default"
+            echo ""
+            echo "3. Once VM is created and running, connect to it and run:"
+            echo "   git clone https://git.raines.xyz/robojerk/libostree-dev.git"
+            echo "   cd libostree-dev"
+            echo "   ./backport-trixie.sh"
+            echo ""
+            echo "Alternatively, use Podman container:"
+            echo "   $0 --podman"
+            return
+        fi
         
         echo -e "${GREEN}VM created successfully. You can connect to it with:${NC}"
         echo "virsh console $VM_NAME"