Add script.sh

script.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+
+set -e
+
+echo "=== Checking Prerequisites ==="
+
+# Check if running as root
+if [ "$(id -u)" -ne 0 ]; then
+    echo "Error: This script must be run as root."
+    exit 1
+fi
+echo "✔ Running as root."
+
+# Check if disk /dev/vda exists
+if [ ! -b /dev/vda ]; then
+    echo "Error: /dev/vda not found. Ensure this is a Proxmox host using the default LVM layout."
+    exit 1
+fi
+echo "✔ /dev/vda detected."
+
+# Check if LVM is installed
+if ! command -v pvdisplay >/dev/null 2>&1; then
+    echo "Error: LVM tools not found. Please install lvm2."
+    exit 1
+fi
+echo "✔ LVM tools detected."
+
+# Check if /dev/vda3 exists
+if [ ! -b /dev/vda3 ]; then
+    echo "Error: Partition /dev/vda3 not found. Ensure the system uses the default Proxmox LVM layout."
+    exit 1
+fi
+echo "✔ /dev/vda3 detected."
+
+echo "=== All prerequisites met ==="
+
+echo "=== Checking for 'growpart' Utility ==="
+if ! command -v growpart >/dev/null 2>&1; then
+    echo "'growpart' is not installed. Installing required package..."
+    apt update && apt install -y cloud-guest-utils
+else
+    echo "'growpart' is already installed."
+fi
+
+
+echo "=== Expanding Partition /dev/vda3 ==="
+GROW_OUTPUT=$(growpart /dev/vda 3 2>&1) || true
+if echo "$GROW_OUTPUT" | grep -q "NOCHANGE"; then
+    echo "✔ /dev/vda3 is already at maximum size. No expansion needed."
+else
+    echo "$GROW_OUTPUT"
+    echo "✔ Partition /dev/vda3 expanded successfully."
+fi
+
+echo "=== Resizing the Physical Volume ==="
+pvresize /dev/vda3
+
+
+echo "=== Extending the Logical Volume to Use All Available Free Space ==="
+LV_OUTPUT=$(lvextend -l +100%FREE /dev/pve/root 2>&1) || true
+if echo "$LV_OUTPUT" | grep -q "No size change"; then
+    echo "✔ Logical volume /dev/pve/root is already using all available free space. No extension needed."
+else
+    echo "$LV_OUTPUT"
+    echo "✔ Logical volume /dev/pve/root extended successfully."
+fi
+
+echo "=== Resizing the Filesystem ==="
+resize2fs /dev/pve/root
+
+echo "=== Disk Expansion Completed Successfully ==="