Initial commit: Complete LVM migration toolset with fixes

- Fixed partition size calculation bugs in migrate_to_lvm.sh
- Added comprehensive error handling for USB drive stability
- Optimized data copy operations using cp -a for better performance
- Corrected mount point detection for encrypted home partitions
- Enhanced drive detection and exclusion logic
- Added proper size override mechanisms for manual intervention
- Improved filesystem creation and validation processes
- Complete toolset for external M.2 drive migration scenarios

Tested successfully on:
- Debian 13 Trixie Live USB environment
- 476GB external M.2 drives via USB 3.0
- Complex partition layouts (root/home/EFI + encryption)
- Large data transfers (314GB+ encrypted home directories)

lvm-migration-tools/simple_auto_backup.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+# Simple launcher script for automated backup from within Clonezilla
+
+echo "==================================="
+echo "  AUTOMATED SYSTEM BACKUP LAUNCHER"
+echo "==================================="
+echo
+echo "This script will:"
+echo "1. Auto-detect your internal drive" 
+echo "2. Create a high-speed backup to this USB"
+echo "3. Complete in ~15-20 minutes"
+echo
+read -p "Press Enter to start automatic backup (Ctrl+C to cancel)..."
+
+# Mount backup partition
+mkdir -p /tmp/backup_storage
+mount /dev/sda2 /tmp/backup_storage 2>/dev/null
+
+if [[ -f /tmp/backup_storage/automated_clonezilla_backup.sh ]]; then
+    echo "Starting automated backup script..."
+    /tmp/backup_storage/automated_clonezilla_backup.sh
+else
+    echo "ERROR: Automated backup script not found!"
+    echo "Falling back to manual Clonezilla..."
+    sleep 3
+    sudo /usr/sbin/ocs-live-general
+fi