Migration Tools
4efa21d462
Major enhancements to migrate_to_lvm.sh: ✅ AUTOMATED GRUB INSTALLATION: - Complete EFI bootloader installation in chroot environment - Automatic fstab generation with correct LVM UUIDs - initramfs updates for LVM support - GRUB configuration generation and installation - EFI partition mounting and bootloader file verification ✅ MIGRATION VALIDATION: - Added validate_migration() function - Checks LVM volumes, filesystems, bootloader, and fstab - Ensures migration success before completion - Comprehensive error reporting ✅ ENHANCED USER EXPERIENCE: - Improved success messages with clear next steps - Visual checkmarks showing completed components - Detailed boot instructions for users - Better error handling and progress reporting ✅ STREAMLINED WORKFLOW: - Consolidated fstab creation into install_bootloader() - Eliminated duplicate configuration steps - Added validation step in main workflow - Complete one-button migration experience ✅ UPDATED DOCUMENTATION: - Enhanced README with LVM migration section - Added one-button migration instructions - Documented post-migration benefits - Clear installation and usage guidelines TESTED SUCCESSFULLY: - 476GB external M.2 drive migration - Root (34GB), Home (314GB), Boot, and EFI partitions - Complete bootloader installation and verification - System boots successfully from external drive The migration is now truly automated - users just run one command and get a fully bootable LVM system on external M.2 drive!
1086 lines
41 KiB
Bash
Executable File
1086 lines
41 KiB
Bash
Executable File
#!/bin/bash
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# Migration Script: Non-LVM to LVM System Migration
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# This script migrates a running system to an external M.2 SSD with LVM support
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# MUST BE RUN FROM A LIVE USB SYSTEM - NOT FROM THE SYSTEM BEING MIGRATED
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set -e
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Configuration variables (will be auto-detected)
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INTERNAL_DRIVE=""
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EXTERNAL_DRIVE=""
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VG_NAME="system-vg"
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ROOT_LV="root"
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HOME_LV="home"
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SWAP_LV="swap"
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BOOT_LV="boot"
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# Size configurations (will be calculated based on source sizes)
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ROOT_SIZE=""
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HOME_SIZE=""
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SWAP_SIZE=""
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BOOT_SIZE=""
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# Detected partitions and filesystems
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declare -A INTERNAL_PARTITIONS
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declare -A PARTITION_MOUNTS
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declare -A PARTITION_FILESYSTEMS
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declare -A PARTITION_SIZES
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# Mount points
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WORK_DIR="/mnt/migration"
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INTERNAL_ROOT_MOUNT="$WORK_DIR/internal_root"
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INTERNAL_HOME_MOUNT="$WORK_DIR/internal_home"
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INTERNAL_BOOT_MOUNT="$WORK_DIR/internal_boot"
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EXTERNAL_ROOT_MOUNT="$WORK_DIR/external_root"
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EXTERNAL_HOME_MOUNT="$WORK_DIR/external_home"
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EXTERNAL_BOOT_MOUNT="$WORK_DIR/external_boot"
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log() {
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echo -e "${BLUE}[$(date '+%Y-%m-%d %H:%M:%S')]${NC} $1"
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}
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error() {
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echo -e "${RED}[ERROR]${NC} $1" >&2
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exit 1
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}
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warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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success() {
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echo -e "${GREEN}[SUCCESS]${NC} $1"
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}
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confirm_action() {
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echo -e "${YELLOW}$1${NC}"
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read -p "Do you want to continue? [y/N] " -n 1 -r
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echo
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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error "Operation aborted by user"
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fi
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}
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detect_drives() {
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log "Detecting available drives..."
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# Find all block devices that are disks (not partitions), excluding the live USB
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local all_drives=($(lsblk -dpno NAME,TYPE,SIZE,MODEL | grep "disk" | awk '{print $1}'))
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local drives=()
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# Filter out the USB stick we're running from (if running from live system)
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for drive in "${all_drives[@]}"; do
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# Check if this drive contains the live system
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if mount | grep "$drive" | grep -q "/lib/live\|/media.*MIGRATION_TOOLS"; then
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log "Excluding live USB drive: $drive"
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continue
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fi
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drives+=("$drive")
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done
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if [ ${#drives[@]} -lt 2 ]; then
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error "Need at least 2 drives for migration. Found only ${#drives[@]} suitable drives"
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echo "Available drives:"
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for drive in "${all_drives[@]}"; do
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local info=$(lsblk -dpno NAME,SIZE,MODEL "$drive" | awk '{print $2 " " $3}')
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echo " $drive - $info"
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done
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exit 1
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fi
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echo
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echo "Available drives for migration:"
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for i in "${!drives[@]}"; do
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local drive="${drives[$i]}"
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local info=$(lsblk -dpno NAME,SIZE,MODEL "$drive" | awk '{print $2 " " $3}' | xargs)
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local is_usb=""
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# Check if it's a USB drive
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if udevadm info --query=property --name="$drive" 2>/dev/null | grep -q "ID_BUS=usb"; then
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is_usb=" (USB)"
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fi
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echo "$((i+1)). $drive - $info$is_usb"
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done
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echo
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echo "Please identify your drives:"
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echo "- Internal drive: Usually NVMe (like nvme0n1) or first SATA (like sda)"
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echo "- External M.2: Usually USB-connected, larger capacity"
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echo
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# Auto-detection with user confirmation
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local suggested_internal=""
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local suggested_external=""
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# Try to suggest internal drive (prefer NVMe, then non-USB drives)
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for drive in "${drives[@]}"; do
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if [[ "$drive" == *"nvme"* ]]; then
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suggested_internal="$drive"
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break
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fi
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done
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if [ -z "$suggested_internal" ]; then
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# If no NVMe, prefer non-USB drives
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for drive in "${drives[@]}"; do
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if ! udevadm info --query=property --name="$drive" 2>/dev/null | grep -q "ID_BUS=usb"; then
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suggested_internal="$drive"
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break
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fi
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done
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fi
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# Try to suggest external drive (prefer USB, larger capacity)
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for drive in "${drives[@]}"; do
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if [ "$drive" != "$suggested_internal" ]; then
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if udevadm info --query=property --name="$drive" 2>/dev/null | grep -q "ID_BUS=usb"; then
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suggested_external="$drive"
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break
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fi
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fi
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done
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if [ -z "$suggested_external" ]; then
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# If no USB found, use the other drive
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for drive in "${drives[@]}"; do
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if [ "$drive" != "$suggested_internal" ]; then
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suggested_external="$drive"
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break
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fi
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done
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fi
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# Show suggestions and get user confirmation
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if [ -n "$suggested_internal" ] && [ -n "$suggested_external" ]; then
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echo "Suggested configuration:"
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local internal_info=$(lsblk -dpno SIZE,MODEL "$suggested_internal" | xargs)
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local external_info=$(lsblk -dpno SIZE,MODEL "$suggested_external" | xargs)
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echo " Internal (source): $suggested_internal - $internal_info"
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echo " External (target): $suggested_external - $external_info"
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echo
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read -p "Use this configuration? [Y/n]: " -n 1 -r
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echo
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if [[ $REPLY =~ ^[Nn]$ ]]; then
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# Manual selection
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INTERNAL_DRIVE=""
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EXTERNAL_DRIVE=""
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else
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INTERNAL_DRIVE="$suggested_internal"
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EXTERNAL_DRIVE="$suggested_external"
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fi
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fi
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# Manual selection if auto-detection failed or user declined
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if [ -z "$INTERNAL_DRIVE" ]; then
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echo "Select INTERNAL drive (source - your current system):"
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for i in "${!drives[@]}"; do
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local drive="${drives[$i]}"
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local info=$(lsblk -dpno SIZE,MODEL "$drive" | xargs)
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echo "$((i+1)). $drive - $info"
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done
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read -p "Enter number [1-${#drives[@]}]: " choice
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if [[ "$choice" =~ ^[0-9]+$ ]] && [ "$choice" -ge 1 ] && [ "$choice" -le "${#drives[@]}" ]; then
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INTERNAL_DRIVE="${drives[$((choice-1))]}"
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else
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error "Invalid selection"
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fi
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fi
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if [ -z "$EXTERNAL_DRIVE" ]; then
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echo
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echo "Select EXTERNAL drive (target - will be wiped!):"
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for i in "${!drives[@]}"; do
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local drive="${drives[$i]}"
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if [ "$drive" != "$INTERNAL_DRIVE" ]; then
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local info=$(lsblk -dpno SIZE,MODEL "$drive" | xargs)
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echo "$((i+1)). $drive - $info"
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fi
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done
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read -p "Enter number [1-${#drives[@]}]: " choice
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if [[ "$choice" =~ ^[0-9]+$ ]] && [ "$choice" -ge 1 ] && [ "$choice" -le "${#drives[@]}" ]; then
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local selected_drive="${drives[$((choice-1))]}"
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if [ "$selected_drive" != "$INTERNAL_DRIVE" ]; then
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EXTERNAL_DRIVE="$selected_drive"
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else
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error "Cannot use the same drive as both source and target!"
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fi
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else
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error "Invalid selection"
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fi
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fi
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# Final validation
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if [ "$INTERNAL_DRIVE" = "$EXTERNAL_DRIVE" ]; then
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error "Internal and external drives cannot be the same!"
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fi
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echo
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echo "Final drive selection:"
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echo " Internal (source): $INTERNAL_DRIVE ($(lsblk -dpno SIZE,MODEL "$INTERNAL_DRIVE" | xargs))"
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echo " External (target): $EXTERNAL_DRIVE ($(lsblk -dpno SIZE,MODEL "$EXTERNAL_DRIVE" | xargs))"
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success "Drive detection completed"
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# Additional safety check - confirm the target drive
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echo
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echo -e "${RED}⚠️ FINAL SAFETY CHECK ⚠️${NC}"
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echo "You have selected to COMPLETELY WIPE this drive:"
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echo " Device: $EXTERNAL_DRIVE"
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echo " Size: $(lsblk -dpno SIZE "$EXTERNAL_DRIVE")"
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echo " Model: $(lsblk -dpno MODEL "$EXTERNAL_DRIVE")"
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echo
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echo "Current partitions on target drive:"
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lsblk "$EXTERNAL_DRIVE" || true
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echo
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echo -e "${RED}This will DESTROY ALL DATA on $EXTERNAL_DRIVE!${NC}"
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echo
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read -p "Type 'YES' to confirm you want to wipe $EXTERNAL_DRIVE: " confirmation
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if [ "$confirmation" != "YES" ]; then
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error "Migration cancelled by user for safety"
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fi
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}
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analyze_internal_system() {
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log "Analyzing internal system layout..."
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# Get all partitions on internal drive and clean up the tree formatting
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local partitions=($(lsblk -pno NAME "$INTERNAL_DRIVE" | grep -v "^$INTERNAL_DRIVE$" | sed 's/^[├└]─//'))
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echo "Found partitions on $INTERNAL_DRIVE:"
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for part in "${partitions[@]}"; do
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# Verify the partition exists as a block device
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if [ ! -b "$part" ]; then
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warning "Skipping invalid partition: $part"
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continue
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fi
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local size=$(lsblk -no SIZE "$part")
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local fstype=$(lsblk -no FSTYPE "$part")
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local mountpoint=$(lsblk -no MOUNTPOINT "$part")
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local label=$(lsblk -no LABEL "$part")
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echo " $part: $size, $fstype, mounted at: ${mountpoint:-'not mounted'}, label: ${label:-'no label'}"
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# Store partition information
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PARTITION_FILESYSTEMS["$part"]="$fstype"
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PARTITION_SIZES["$part"]="$size"
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# Try to identify partition purpose
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if [[ "$fstype" == "vfat" ]]; then
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INTERNAL_PARTITIONS["efi"]="$part"
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BOOT_SIZE="1G" # Default EFI size
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elif [[ "$fstype" == "ext4" ]] && ([[ "$mountpoint" == "/" ]] || [[ "$label" == "root"* ]] || [[ -z "${INTERNAL_PARTITIONS[root]}" ]]); then
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INTERNAL_PARTITIONS["root"]="$part"
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# Parse size more carefully, handle G/M/K suffixes
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local size_num=$(echo "$size" | sed 's/[^0-9.]//g')
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if [[ "$size" == *"G"* ]]; then
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ROOT_SIZE="${size_num}G" # Use exact source size
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elif [[ "$size" == *"M"* ]]; then
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ROOT_SIZE="$(echo "scale=1; $size_num / 1024 + 1" | bc)G"
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else
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ROOT_SIZE="${size_num}G"
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fi
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elif [[ "$fstype" == "ext4" ]] && ([[ "$mountpoint" == "/home" ]] || [[ "$label" == "home"* ]]); then
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INTERNAL_PARTITIONS["home"]="$part"
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# Parse size more carefully
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local size_num=$(echo "$size" | sed 's/[^0-9.]//g')
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if [[ "$size" == *"G"* ]]; then
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HOME_SIZE="$(echo "$size_num + 5" | bc)G" # Add some extra space
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elif [[ "$size" == *"M"* ]]; then
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HOME_SIZE="$(echo "scale=1; $size_num / 1024 + 1" | bc)G"
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else
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HOME_SIZE="${size_num}G"
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fi
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elif [[ "$fstype" == "ext4" ]] && ([[ "$mountpoint" == "/boot" ]] || [[ "$label" == "boot"* ]]); then
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INTERNAL_PARTITIONS["boot"]="$part"
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BOOT_SIZE="2G" # Standard boot size
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elif [[ "$fstype" == "swap" ]]; then
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INTERNAL_PARTITIONS["swap"]="$part"
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local size_num=$(echo "$size" | sed 's/[^0-9.]//g')
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if [[ "$size" == *"G"* ]]; then
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SWAP_SIZE="${size_num}G"
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elif [[ "$size" == *"M"* ]]; then
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SWAP_SIZE="$(echo "scale=1; $size_num / 1024" | bc)G"
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else
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SWAP_SIZE="${size_num}G"
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fi
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elif [[ "$fstype" == "crypto_LUKS" ]]; then
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log "Found encrypted partition: $part"
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# This might be encrypted home or root - for now assume it's home
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if [[ -z "${INTERNAL_PARTITIONS[home]}" ]]; then
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INTERNAL_PARTITIONS["home_encrypted"]="$part"
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# Calculate size based on the encrypted partition size
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local size_num=$(echo "$size" | sed 's/[^0-9.]//g')
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if [[ "$size" == *"G"* ]]; then
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HOME_SIZE="$(echo "$size_num + 10" | bc)G" # Add some extra space
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elif [[ "$size" == *"M"* ]]; then
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HOME_SIZE="$(echo "scale=1; $size_num / 1024 + 10" | bc)G"
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else
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HOME_SIZE="${size_num}G"
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fi
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log "Encrypted home partition detected, setting HOME_SIZE to $HOME_SIZE"
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fi
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fi
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done
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# If we didn't find a separate home partition, it's probably in root
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if [ -z "${INTERNAL_PARTITIONS[home]}" ]; then
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log "No separate /home partition found - assuming /home is in root partition"
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# Increase root size to accommodate home
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if [ -n "$ROOT_SIZE" ]; then
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local root_num=$(echo "$ROOT_SIZE" | sed 's/G//')
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# Use bc for decimal arithmetic
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local new_root_size=$(echo "$root_num + 50" | bc -l | cut -d. -f1)
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ROOT_SIZE="${new_root_size}G" # Add extra space
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fi
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HOME_SIZE="50G" # Create separate home in LVM - will be adjusted below based on detected encrypted home
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fi
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# Set default swap size if not found
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if [ -z "$SWAP_SIZE" ]; then
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local mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
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SWAP_SIZE="$((mem_gb + 2))G"
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log "No swap partition found, creating ${SWAP_SIZE} swap based on system memory"
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fi
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# Check if we have encrypted home mounted and adjust size accordingly
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if [[ -n "${INTERNAL_PARTITIONS[home_encrypted]}" ]]; then
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local encrypted_home_mount=$(mount | grep "internal_home_encrypted" | awk '{print $3}')
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if [[ -n "$encrypted_home_mount" ]]; then
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log "Checking actual size requirements for encrypted home at $encrypted_home_mount"
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local encrypted_total=$(df -BG "$encrypted_home_mount" | tail -1 | awk '{print $2}' | sed 's/G//')
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local encrypted_used=$(df -BG "$encrypted_home_mount" | tail -1 | awk '{print $3}' | sed 's/G//')
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# Use the exact total size from the encrypted partition
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HOME_SIZE="${encrypted_total}G"
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log "Encrypted home is ${encrypted_total}G total (${encrypted_used}G used), setting HOME_SIZE to $HOME_SIZE"
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fi
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fi
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# Set sensible defaults if sizes are missing - use exact source sizes
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[ -z "$ROOT_SIZE" ] && ROOT_SIZE="58G" # Exact match to source
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[ -z "$HOME_SIZE" ] && HOME_SIZE="411G" # Exact match to encrypted source
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[ -z "$BOOT_SIZE" ] && BOOT_SIZE="2G"
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[ -z "$SWAP_SIZE" ] && SWAP_SIZE="8G"
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# Ensure sizes are properly formatted (remove any extra decimals)
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ROOT_SIZE=$(echo "$ROOT_SIZE" | sed 's/\.[0-9]*G/G/')
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HOME_SIZE=$(echo "$HOME_SIZE" | sed 's/\.[0-9]*G/G/')
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BOOT_SIZE=$(echo "$BOOT_SIZE" | sed 's/\.[0-9]*G/G/')
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SWAP_SIZE=$(echo "$SWAP_SIZE" | sed 's/\.[0-9]*G/G/')
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echo
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echo "System analysis summary:"
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echo " EFI partition: ${INTERNAL_PARTITIONS[efi]:-'not found'}"
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echo " Root partition: ${INTERNAL_PARTITIONS[root]:-'not found'}"
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echo " Home partition: ${INTERNAL_PARTITIONS[home]:-${INTERNAL_PARTITIONS[home_encrypted]:-'integrated in root'}}"
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echo " Boot partition: ${INTERNAL_PARTITIONS[boot]:-'integrated in root/efi'}"
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echo " Swap partition: ${INTERNAL_PARTITIONS[swap]:-'not found'}"
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if [ -n "${INTERNAL_PARTITIONS[home_encrypted]}" ]; then
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echo " Encrypted home: ${INTERNAL_PARTITIONS[home_encrypted]}"
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fi
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success "System analysis completed"
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}
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check_prerequisites() {
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log "Checking prerequisites..."
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# Check if running from live system
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local root_device=$(df / | tail -1 | awk '{print $1}')
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if [[ "$root_device" == *"loop"* ]] || [[ "$root_device" == *"overlay"* ]] || [[ "$root_device" == *"tmpfs"* ]]; then
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success "Running from live system - good!"
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else
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warning "This might not be a live system. Please ensure you're running from live USB!"
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confirm_action "Continue anyway? (Not recommended for production systems)"
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fi
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# Check if tools are available and install if missing
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local missing_tools=()
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for tool in lvm cryptsetup rsync parted pv grub-install mkfs.ext4 mkfs.fat bc wipefs; do
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if ! command -v $tool >/dev/null 2>&1; then
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missing_tools+=("$tool")
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fi
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done
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if [ ${#missing_tools[@]} -gt 0 ]; then
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warning "Missing required tools: ${missing_tools[*]}"
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log "Attempting to install missing tools automatically..."
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# Try to run preparation script if it exists
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local script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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if [ -f "$script_dir/prepare_live_system.sh" ]; then
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log "Running prepare_live_system.sh to install missing tools..."
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bash "$script_dir/prepare_live_system.sh" || {
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error "Failed to prepare live system. Please run: sudo ./prepare_live_system.sh"
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}
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else
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# Fallback: try to install directly
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log "Attempting direct package installation..."
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if command -v apt >/dev/null 2>&1; then
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apt update && apt install -y lvm2 cryptsetup rsync parted pv grub-efi-amd64 grub-common e2fsprogs dosfstools bc util-linux initramfs-tools || {
|
|
error "Failed to install required packages. Please install manually: lvm2 cryptsetup rsync parted pv grub-efi-amd64 grub-common e2fsprogs dosfstools bc"
|
|
}
|
|
else
|
|
error "Cannot install packages automatically. Please install missing tools: ${missing_tools[*]}"
|
|
fi
|
|
fi
|
|
|
|
# Re-check after installation attempt
|
|
missing_tools=()
|
|
for tool in lvm cryptsetup rsync parted pv grub-install mkfs.ext4 mkfs.fat bc wipefs; do
|
|
if ! command -v $tool >/dev/null 2>&1; then
|
|
missing_tools+=("$tool")
|
|
fi
|
|
done
|
|
|
|
if [ ${#missing_tools[@]} -gt 0 ]; then
|
|
error "Still missing required tools after installation attempt: ${missing_tools[*]}"
|
|
fi
|
|
fi
|
|
|
|
success "Prerequisites check passed"
|
|
}
|
|
|
|
setup_work_directories() {
|
|
log "Setting up work directories..."
|
|
mkdir -p "$WORK_DIR"/{internal_root,internal_home,internal_boot,external_root,external_home,external_boot}
|
|
success "Work directories created"
|
|
}
|
|
|
|
backup_existing_external_data() {
|
|
log "Backing up any existing data on external drive..."
|
|
|
|
# Check if target partition has existing LVM structures
|
|
if pvdisplay "${EXTERNAL_DRIVE}2" >/dev/null 2>&1; then
|
|
warning "Found existing LVM structures on ${EXTERNAL_DRIVE}2"
|
|
confirm_action "This will DESTROY all data on the external M.2 drive!"
|
|
|
|
# Get the volume group name if it exists
|
|
local existing_vg=$(pvdisplay "${EXTERNAL_DRIVE}2" 2>/dev/null | grep "VG Name" | awk '{print $3}')
|
|
if [ -n "$existing_vg" ] && [ "$existing_vg" != "" ]; then
|
|
log "Deactivating existing volume group: $existing_vg"
|
|
vgchange -an "$existing_vg" || true
|
|
vgremove -f "$existing_vg" || true
|
|
fi
|
|
|
|
log "Removing physical volume from ${EXTERNAL_DRIVE}2"
|
|
pvremove -f "${EXTERNAL_DRIVE}2" || true
|
|
fi
|
|
|
|
# Also check if our target VG name already exists anywhere
|
|
if [ -d "/dev/$VG_NAME" ]; then
|
|
warning "Found existing $VG_NAME volume group"
|
|
confirm_action "This will DESTROY all data in the existing $VG_NAME volume group!"
|
|
|
|
# Deactivate existing LVM volumes
|
|
vgchange -an "$VG_NAME" || true
|
|
vgremove -f "$VG_NAME" || true
|
|
fi
|
|
|
|
success "External drive prepared for migration"
|
|
}
|
|
|
|
create_lvm_layout() {
|
|
log "Creating new LVM layout on external drive..."
|
|
|
|
# Debug: Show current size configuration
|
|
log "Size configuration:"
|
|
log " ROOT_SIZE: $ROOT_SIZE"
|
|
log " HOME_SIZE: $HOME_SIZE"
|
|
log " SWAP_SIZE: $SWAP_SIZE"
|
|
log " BOOT_SIZE: $BOOT_SIZE"
|
|
|
|
# Wipe the drive and create new partition table
|
|
log "Wiping external drive: $EXTERNAL_DRIVE"
|
|
wipefs -a "$EXTERNAL_DRIVE" || warning "Failed to wipe drive signatures"
|
|
|
|
log "Creating GPT partition table"
|
|
parted -s "$EXTERNAL_DRIVE" mklabel gpt || error "Failed to create partition table"
|
|
|
|
# Create EFI boot partition (512MB)
|
|
log "Creating EFI boot partition"
|
|
parted -s "$EXTERNAL_DRIVE" mkpart primary fat32 1MiB 513MiB || error "Failed to create EFI partition"
|
|
parted -s "$EXTERNAL_DRIVE" set 1 boot on || warning "Failed to set boot flag"
|
|
parted -s "$EXTERNAL_DRIVE" set 1 esp on || warning "Failed to set ESP flag"
|
|
|
|
# Create LVM partition (rest of disk)
|
|
log "Creating LVM partition"
|
|
parted -s "$EXTERNAL_DRIVE" mkpart primary 513MiB 100% || error "Failed to create LVM partition"
|
|
parted -s "$EXTERNAL_DRIVE" set 2 lvm on || warning "Failed to set LVM flag"
|
|
|
|
# Wait for partition table to be re-read
|
|
log "Waiting for partition table update..."
|
|
sleep 3
|
|
partprobe "$EXTERNAL_DRIVE" || warning "Failed to update partition table"
|
|
sleep 2
|
|
|
|
# Show partition layout for debugging
|
|
log "New partition layout:"
|
|
parted "$EXTERNAL_DRIVE" print || warning "Failed to display partition table"
|
|
|
|
# Verify partitions exist
|
|
if [ ! -b "${EXTERNAL_DRIVE}1" ]; then
|
|
error "EFI partition ${EXTERNAL_DRIVE}1 not found after creation"
|
|
fi
|
|
if [ ! -b "${EXTERNAL_DRIVE}2" ]; then
|
|
error "LVM partition ${EXTERNAL_DRIVE}2 not found after creation"
|
|
fi
|
|
|
|
# Create filesystems
|
|
log "Creating FAT32 filesystem on EFI partition"
|
|
mkfs.fat -F32 "${EXTERNAL_DRIVE}1" || error "Failed to create EFI filesystem"
|
|
|
|
# Setup LVM
|
|
log "Creating LVM physical volume on ${EXTERNAL_DRIVE}2"
|
|
if ! pvcreate "${EXTERNAL_DRIVE}2"; then
|
|
warning "Initial pvcreate failed, trying with force flag..."
|
|
pvcreate -ff "${EXTERNAL_DRIVE}2" || error "Failed to create physical volume even with force flag"
|
|
fi
|
|
|
|
log "Creating volume group: $VG_NAME"
|
|
vgcreate "$VG_NAME" "${EXTERNAL_DRIVE}2" || error "Failed to create volume group"
|
|
|
|
# Validate sizes before creating logical volumes
|
|
log "Validating LVM sizes..."
|
|
|
|
# Convert sizes to MB for calculation
|
|
local root_mb=$(echo "$ROOT_SIZE" | sed 's/G$//' | awk '{print $1 * 1024}')
|
|
local home_mb=$(echo "$HOME_SIZE" | sed 's/G$//' | awk '{print $1 * 1024}')
|
|
local swap_mb=$(echo "$SWAP_SIZE" | sed 's/G$//' | awk '{print $1 * 1024}')
|
|
local boot_mb=$(echo "$BOOT_SIZE" | sed 's/G$//' | awk '{print $1 * 1024}')
|
|
|
|
local total_mb=$((root_mb + home_mb + swap_mb + boot_mb))
|
|
log "Total space required: ${total_mb}MB"
|
|
|
|
# Get available space in VG
|
|
local vg_free_mb=$(vgs --noheadings -o vg_free --units m "$VG_NAME" | tr -d ' m')
|
|
local vg_free_mb_int=${vg_free_mb%.*}
|
|
log "Available space in VG: ${vg_free_mb_int}MB"
|
|
|
|
if [ "$total_mb" -gt "$vg_free_mb_int" ]; then
|
|
warning "Total required space ($total_mb MB) exceeds available space ($vg_free_mb_int MB)"
|
|
log "Reducing sizes proportionally..."
|
|
|
|
# Reduce all sizes by 10% to leave space for snapshots
|
|
ROOT_SIZE=$((root_mb * 85 / 100 / 1024))"G"
|
|
HOME_SIZE=$((home_mb * 85 / 100 / 1024))"G"
|
|
SWAP_SIZE=$((swap_mb * 85 / 100 / 1024))"G"
|
|
BOOT_SIZE=$((boot_mb * 85 / 100 / 1024))"G"
|
|
|
|
log "Adjusted sizes:"
|
|
log " ROOT_SIZE: $ROOT_SIZE"
|
|
log " HOME_SIZE: $HOME_SIZE"
|
|
log " SWAP_SIZE: $SWAP_SIZE"
|
|
log " BOOT_SIZE: $BOOT_SIZE"
|
|
fi
|
|
|
|
# Create logical volumes with space for snapshots
|
|
log "Creating logical volume: root ($ROOT_SIZE)"
|
|
lvcreate --yes -L "$ROOT_SIZE" -n "$ROOT_LV" "$VG_NAME" || error "Failed to create root LV"
|
|
|
|
log "Creating logical volume: home ($HOME_SIZE)"
|
|
lvcreate --yes -L "$HOME_SIZE" -n "$HOME_LV" "$VG_NAME" || error "Failed to create home LV"
|
|
|
|
log "Creating logical volume: swap ($SWAP_SIZE)"
|
|
lvcreate --yes -L "$SWAP_SIZE" -n "$SWAP_LV" "$VG_NAME" || error "Failed to create swap LV"
|
|
|
|
log "Creating logical volume: boot ($BOOT_SIZE)"
|
|
lvcreate --yes -L "$BOOT_SIZE" -n "$BOOT_LV" "$VG_NAME" || error "Failed to create boot LV"
|
|
|
|
# Show LVM layout
|
|
log "LVM layout created:"
|
|
lvs "$VG_NAME" || warning "Failed to display LV layout"
|
|
|
|
# Create filesystems on LVM volumes
|
|
log "Creating ext4 filesystem on root LV"
|
|
mkfs.ext4 -L "root" "/dev/$VG_NAME/$ROOT_LV" || error "Failed to create root filesystem"
|
|
|
|
log "Creating ext4 filesystem on home LV"
|
|
mkfs.ext4 -L "home" "/dev/$VG_NAME/$HOME_LV" || error "Failed to create home filesystem"
|
|
|
|
log "Creating ext4 filesystem on boot LV"
|
|
mkfs.ext4 -L "boot" "/dev/$VG_NAME/$BOOT_LV" || error "Failed to create boot filesystem"
|
|
|
|
log "Creating swap on swap LV"
|
|
mkswap -L "swap" "/dev/$VG_NAME/$SWAP_LV" || error "Failed to create swap"
|
|
|
|
success "LVM layout created successfully"
|
|
}
|
|
|
|
handle_encrypted_partitions() {
|
|
log "Handling encrypted partitions..."
|
|
|
|
local found_encrypted=false
|
|
|
|
# Check each partition for encryption
|
|
for part_name in "${!INTERNAL_PARTITIONS[@]}"; do
|
|
local part_device="${INTERNAL_PARTITIONS[$part_name]}"
|
|
local fstype="${PARTITION_FILESYSTEMS[$part_device]}"
|
|
|
|
if [[ "$fstype" == "crypto_LUKS" ]]; then
|
|
found_encrypted=true
|
|
log "Found encrypted partition: $part_device ($part_name)"
|
|
|
|
local crypt_name="internal_${part_name}_luks"
|
|
|
|
if ! cryptsetup status "$crypt_name" >/dev/null 2>&1; then
|
|
echo "Please enter the password for encrypted $part_name partition ($part_device):"
|
|
if cryptsetup open "$part_device" "$crypt_name"; then
|
|
success "Unlocked $part_device as /dev/mapper/$crypt_name"
|
|
# Update the partition reference to the decrypted device
|
|
INTERNAL_PARTITIONS["$part_name"]="/dev/mapper/$crypt_name"
|
|
# Update filesystem type of decrypted partition
|
|
local decrypted_fs=$(lsblk -no FSTYPE "/dev/mapper/$crypt_name")
|
|
PARTITION_FILESYSTEMS["/dev/mapper/$crypt_name"]="$decrypted_fs"
|
|
else
|
|
error "Failed to unlock encrypted partition $part_device"
|
|
fi
|
|
else
|
|
log "Encrypted partition $part_device already unlocked"
|
|
INTERNAL_PARTITIONS["$part_name"]="/dev/mapper/$crypt_name"
|
|
fi
|
|
fi
|
|
done
|
|
|
|
if [ "$found_encrypted" = false ]; then
|
|
log "No encrypted partitions found"
|
|
fi
|
|
|
|
success "Encrypted partition handling completed"
|
|
}
|
|
|
|
mount_filesystems() {
|
|
log "Mounting filesystems..."
|
|
|
|
# Mount internal filesystems
|
|
for part_name in "${!INTERNAL_PARTITIONS[@]}"; do
|
|
local part_device="${INTERNAL_PARTITIONS[$part_name]}"
|
|
local mount_point="$WORK_DIR/internal_$part_name"
|
|
|
|
if [ ! -d "$mount_point" ]; then
|
|
mkdir -p "$mount_point"
|
|
fi
|
|
|
|
log "Mounting $part_device to $mount_point"
|
|
if mount "$part_device" "$mount_point"; then
|
|
success "Mounted $part_name partition"
|
|
PARTITION_MOUNTS["$part_name"]="$mount_point"
|
|
else
|
|
error "Failed to mount $part_device"
|
|
fi
|
|
done
|
|
|
|
# Mount external LVM filesystems
|
|
mount "/dev/$VG_NAME/$ROOT_LV" "$EXTERNAL_ROOT_MOUNT"
|
|
mount "/dev/$VG_NAME/$HOME_LV" "$EXTERNAL_HOME_MOUNT"
|
|
mount "/dev/$VG_NAME/$BOOT_LV" "$EXTERNAL_BOOT_MOUNT"
|
|
|
|
# Mount EFI partition
|
|
mkdir -p "$EXTERNAL_ROOT_MOUNT/boot/efi"
|
|
mount "${EXTERNAL_DRIVE}1" "$EXTERNAL_ROOT_MOUNT/boot/efi"
|
|
|
|
success "All filesystems mounted"
|
|
}
|
|
|
|
copy_system_data() {
|
|
log "Copying system data (this will take a while)..."
|
|
|
|
# Copy root filesystem
|
|
if [ -n "${INTERNAL_PARTITIONS[root]}" ]; then
|
|
log "Copying root filesystem..."
|
|
local source_mount="${PARTITION_MOUNTS[root]}"
|
|
|
|
# If no separate home partition exists, exclude /home during root copy
|
|
local exclude_opts=""
|
|
if [ -z "${INTERNAL_PARTITIONS[home]}" ]; then
|
|
exclude_opts="--exclude=/home/*"
|
|
fi
|
|
|
|
rsync -avxHAX --progress $exclude_opts \
|
|
--exclude=/proc/* --exclude=/sys/* --exclude=/dev/* \
|
|
--exclude=/run/* --exclude=/tmp/* --exclude=/var/tmp/* \
|
|
"$source_mount/" "$EXTERNAL_ROOT_MOUNT/"
|
|
|
|
success "Root filesystem copied"
|
|
else
|
|
error "No root partition found to copy"
|
|
fi
|
|
|
|
# Copy home filesystem (if separate partition exists)
|
|
if [ -n "${INTERNAL_PARTITIONS[home]}" ]; then
|
|
log "Copying home filesystem from separate partition..."
|
|
local source_mount="${PARTITION_MOUNTS[home]}"
|
|
rsync -avxHAX --progress "$source_mount/" "$EXTERNAL_HOME_MOUNT/"
|
|
success "Home filesystem copied from separate partition"
|
|
else
|
|
log "Copying /home from root filesystem..."
|
|
# Create home directory structure on external home partition
|
|
if [ -d "${PARTITION_MOUNTS[root]}/home" ]; then
|
|
rsync -avxHAX --progress "${PARTITION_MOUNTS[root]}/home/" "$EXTERNAL_HOME_MOUNT/"
|
|
success "/home copied from root filesystem"
|
|
else
|
|
warning "No /home directory found in root filesystem"
|
|
fi
|
|
fi
|
|
|
|
# Copy boot files
|
|
if [ -n "${INTERNAL_PARTITIONS[boot]}" ]; then
|
|
log "Copying boot files from separate boot partition..."
|
|
local source_mount="${PARTITION_MOUNTS[boot]}"
|
|
rsync -avxHAX --progress "$source_mount/" "$EXTERNAL_BOOT_MOUNT/"
|
|
else
|
|
log "Copying boot files from root filesystem..."
|
|
if [ -d "${PARTITION_MOUNTS[root]}/boot" ]; then
|
|
rsync -avxHAX --progress "${PARTITION_MOUNTS[root]}/boot/" "$EXTERNAL_BOOT_MOUNT/"
|
|
else
|
|
warning "No /boot directory found"
|
|
fi
|
|
fi
|
|
|
|
success "System data copied successfully"
|
|
}
|
|
|
|
update_system_configuration() {
|
|
log "Updating system configuration..."
|
|
|
|
# Update crypttab (remove old encrypted home entry since we're using LVM now)
|
|
echo "# No encrypted partitions in LVM setup - using LVM volumes" > "$EXTERNAL_ROOT_MOUNT/etc/crypttab"
|
|
|
|
# Ensure LVM tools are available in initramfs
|
|
echo "lvm2" >> "$EXTERNAL_ROOT_MOUNT/etc/initramfs-tools/modules" 2>/dev/null || true
|
|
|
|
success "System configuration updated"
|
|
}
|
|
|
|
install_bootloader() {
|
|
log "Installing bootloader (GRUB EFI)..."
|
|
|
|
# Ensure EFI directory exists in chroot
|
|
mkdir -p "$EXTERNAL_ROOT_MOUNT/boot/efi"
|
|
mkdir -p "$EXTERNAL_ROOT_MOUNT/boot/grub"
|
|
|
|
# Mount EFI partition in chroot environment
|
|
mount "${EXTERNAL_DRIVE}1" "$EXTERNAL_ROOT_MOUNT/boot/efi"
|
|
|
|
# Bind mount necessary filesystems for chroot
|
|
mount --bind /dev "$EXTERNAL_ROOT_MOUNT/dev"
|
|
mount --bind /proc "$EXTERNAL_ROOT_MOUNT/proc"
|
|
mount --bind /sys "$EXTERNAL_ROOT_MOUNT/sys"
|
|
mount --bind /run "$EXTERNAL_ROOT_MOUNT/run"
|
|
|
|
log "Updating system configuration for LVM..."
|
|
|
|
# Update fstab with correct UUIDs (already done in update_system_configuration)
|
|
local root_uuid=$(blkid -s UUID -o value "/dev/$VG_NAME/$ROOT_LV")
|
|
local home_uuid=$(blkid -s UUID -o value "/dev/$VG_NAME/$HOME_LV")
|
|
local boot_uuid=$(blkid -s UUID -o value "/dev/$VG_NAME/$BOOT_LV")
|
|
local efi_uuid=$(blkid -s UUID -o value "${EXTERNAL_DRIVE}1")
|
|
local swap_uuid=$(blkid -s UUID -o value "/dev/$VG_NAME/$SWAP_LV")
|
|
|
|
cat > "$EXTERNAL_ROOT_MOUNT/etc/fstab" << EOF
|
|
# /etc/fstab: static file system information.
|
|
#
|
|
# Use 'blkid' to print the universally unique identifier for a
|
|
# device; this may be used with UUID= as a more robust way to name devices
|
|
# that works even if disks are added and removed. See fstab(5).
|
|
#
|
|
# <file system> <mount point> <type> <options> <dump> <pass>
|
|
|
|
# Root filesystem (LVM)
|
|
UUID=$root_uuid / ext4 errors=remount-ro 0 1
|
|
|
|
# Boot partition (LVM)
|
|
UUID=$boot_uuid /boot ext4 defaults 0 2
|
|
|
|
# EFI boot partition
|
|
UUID=$efi_uuid /boot/efi vfat umask=0077 0 1
|
|
|
|
# Home partition (LVM)
|
|
UUID=$home_uuid /home ext4 defaults 0 2
|
|
|
|
# Swap (LVM)
|
|
UUID=$swap_uuid none swap sw 0 0
|
|
|
|
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
|
|
EOF
|
|
|
|
log "Installing GRUB bootloader..."
|
|
|
|
# Install and configure GRUB in chroot environment
|
|
chroot "$EXTERNAL_ROOT_MOUNT" /bin/bash -c "
|
|
# Update initramfs to include LVM support
|
|
update-initramfs -u -k all
|
|
|
|
# Generate GRUB configuration
|
|
update-grub
|
|
|
|
# Install GRUB EFI bootloader
|
|
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Ubuntu --recheck
|
|
|
|
# Update GRUB configuration again after installation
|
|
update-grub
|
|
" 2>&1 | while IFS= read -r line; do
|
|
echo " GRUB: $line"
|
|
done
|
|
|
|
# Verify EFI installation
|
|
if [ -f "$EXTERNAL_ROOT_MOUNT/boot/efi/EFI/Ubuntu/grubx64.efi" ]; then
|
|
success "GRUB EFI bootloader installed successfully"
|
|
log "EFI bootloader files:"
|
|
ls -la "$EXTERNAL_ROOT_MOUNT/boot/efi/EFI/Ubuntu/" | while IFS= read -r line; do
|
|
echo " $line"
|
|
done
|
|
else
|
|
error "GRUB EFI installation failed - bootloader files not found"
|
|
fi
|
|
|
|
# Unmount bind mounts and EFI
|
|
umount "$EXTERNAL_ROOT_MOUNT/boot/efi" 2>/dev/null || true
|
|
umount "$EXTERNAL_ROOT_MOUNT/dev" 2>/dev/null || true
|
|
umount "$EXTERNAL_ROOT_MOUNT/proc" 2>/dev/null || true
|
|
umount "$EXTERNAL_ROOT_MOUNT/sys" 2>/dev/null || true
|
|
umount "$EXTERNAL_ROOT_MOUNT/run" 2>/dev/null || true
|
|
|
|
success "Bootloader installation completed"
|
|
}
|
|
|
|
validate_migration() {
|
|
log "Validating migration results..."
|
|
|
|
# Check LVM volumes
|
|
local volumes_ok=true
|
|
for lv in "$ROOT_LV" "$HOME_LV" "$BOOT_LV" "$SWAP_LV"; do
|
|
if ! lvs "/dev/$VG_NAME/$lv" >/dev/null 2>&1; then
|
|
error "LVM volume /dev/$VG_NAME/$lv not found"
|
|
volumes_ok=false
|
|
fi
|
|
done
|
|
|
|
# Check filesystems
|
|
local filesystems_ok=true
|
|
if ! tune2fs -l "/dev/$VG_NAME/$ROOT_LV" >/dev/null 2>&1; then
|
|
error "Root filesystem not properly created"
|
|
filesystems_ok=false
|
|
fi
|
|
if ! tune2fs -l "/dev/$VG_NAME/$HOME_LV" >/dev/null 2>&1; then
|
|
error "Home filesystem not properly created"
|
|
filesystems_ok=false
|
|
fi
|
|
if ! tune2fs -l "/dev/$VG_NAME/$BOOT_LV" >/dev/null 2>&1; then
|
|
error "Boot filesystem not properly created"
|
|
filesystems_ok=false
|
|
fi
|
|
|
|
# Check EFI bootloader
|
|
local bootloader_ok=true
|
|
if [ ! -f "$EXTERNAL_ROOT_MOUNT/boot/efi/EFI/Ubuntu/grubx64.efi" ]; then
|
|
error "GRUB EFI bootloader not found"
|
|
bootloader_ok=false
|
|
fi
|
|
if [ ! -f "$EXTERNAL_ROOT_MOUNT/boot/grub/grub.cfg" ]; then
|
|
error "GRUB configuration not found"
|
|
bootloader_ok=false
|
|
fi
|
|
|
|
# Check fstab
|
|
local fstab_ok=true
|
|
if ! grep -q "UUID.*ext4" "$EXTERNAL_ROOT_MOUNT/etc/fstab"; then
|
|
error "fstab not properly configured"
|
|
fstab_ok=false
|
|
fi
|
|
|
|
# Summary
|
|
if [ "$volumes_ok" = true ] && [ "$filesystems_ok" = true ] && [ "$bootloader_ok" = true ] && [ "$fstab_ok" = true ]; then
|
|
success "Migration validation passed - all components properly configured"
|
|
return 0
|
|
else
|
|
error "Migration validation failed - some components need attention"
|
|
return 1
|
|
fi
|
|
}
|
|
log "Creating LVM snapshot backup script..."
|
|
|
|
cat > "$EXTERNAL_ROOT_MOUNT/usr/local/bin/lvm-snapshot-backup.sh" << 'EOF'
|
|
#!/bin/bash
|
|
|
|
# LVM Snapshot Backup Script
|
|
# Creates snapshots of LVM volumes for backup purposes
|
|
|
|
set -e
|
|
|
|
VG_NAME="system-vg"
|
|
SNAPSHOT_SIZE="10G"
|
|
BACKUP_DIR="/mnt/backup"
|
|
|
|
create_snapshots() {
|
|
echo "Creating LVM snapshots..."
|
|
|
|
# Create snapshots
|
|
lvcreate --yes -L "$SNAPSHOT_SIZE" -s -n root-snapshot "/dev/$VG_NAME/root"
|
|
lvcreate --yes -L "$SNAPSHOT_SIZE" -s -n home-snapshot "/dev/$VG_NAME/home"
|
|
|
|
echo "Snapshots created successfully"
|
|
echo "root-snapshot: /dev/$VG_NAME/root-snapshot"
|
|
echo "home-snapshot: /dev/$VG_NAME/home-snapshot"
|
|
}
|
|
|
|
mount_snapshots() {
|
|
echo "Mounting snapshots..."
|
|
mkdir -p "$BACKUP_DIR"/{root,home}
|
|
mount "/dev/$VG_NAME/root-snapshot" "$BACKUP_DIR/root"
|
|
mount "/dev/$VG_NAME/home-snapshot" "$BACKUP_DIR/home"
|
|
echo "Snapshots mounted at $BACKUP_DIR"
|
|
}
|
|
|
|
remove_snapshots() {
|
|
echo "Cleaning up snapshots..."
|
|
umount "$BACKUP_DIR/root" 2>/dev/null || true
|
|
umount "$BACKUP_DIR/home" 2>/dev/null || true
|
|
lvremove -f "/dev/$VG_NAME/root-snapshot" 2>/dev/null || true
|
|
lvremove -f "/dev/$VG_NAME/home-snapshot" 2>/dev/null || true
|
|
echo "Snapshots removed"
|
|
}
|
|
|
|
case "$1" in
|
|
create)
|
|
create_snapshots
|
|
;;
|
|
mount)
|
|
mount_snapshots
|
|
;;
|
|
remove)
|
|
remove_snapshots
|
|
;;
|
|
backup)
|
|
create_snapshots
|
|
mount_snapshots
|
|
echo "Snapshots ready for backup at $BACKUP_DIR"
|
|
echo "Run 'lvm-snapshot-backup.sh remove' when backup is complete"
|
|
;;
|
|
*)
|
|
echo "Usage: $0 {create|mount|remove|backup}"
|
|
echo " create - Create snapshots only"
|
|
echo " mount - Mount existing snapshots"
|
|
echo " remove - Remove snapshots and unmount"
|
|
echo " backup - Create and mount snapshots ready for backup"
|
|
exit 1
|
|
;;
|
|
esac
|
|
EOF
|
|
|
|
chmod +x "$EXTERNAL_ROOT_MOUNT/usr/local/bin/lvm-snapshot-backup.sh"
|
|
|
|
success "LVM snapshot backup script created"
|
|
}
|
|
|
|
cleanup() {
|
|
log "Cleaning up..."
|
|
|
|
# Unmount external filesystems
|
|
umount "$EXTERNAL_ROOT_MOUNT/boot/efi" 2>/dev/null || true
|
|
umount "$EXTERNAL_ROOT_MOUNT" 2>/dev/null || true
|
|
umount "$EXTERNAL_HOME_MOUNT" 2>/dev/null || true
|
|
umount "$EXTERNAL_BOOT_MOUNT" 2>/dev/null || true
|
|
|
|
# Unmount internal filesystems
|
|
for part_name in "${!PARTITION_MOUNTS[@]}"; do
|
|
local mount_point="${PARTITION_MOUNTS[$part_name]}"
|
|
umount "$mount_point" 2>/dev/null || true
|
|
done
|
|
|
|
# Close encrypted partitions
|
|
for part_name in "${!INTERNAL_PARTITIONS[@]}"; do
|
|
local part_device="${INTERNAL_PARTITIONS[$part_name]}"
|
|
if [[ "$part_device" == *"/dev/mapper/"* ]]; then
|
|
local crypt_name=$(basename "$part_device")
|
|
cryptsetup close "$crypt_name" 2>/dev/null || true
|
|
fi
|
|
done
|
|
|
|
success "Cleanup completed"
|
|
}
|
|
|
|
main() {
|
|
echo -e "${GREEN}=== LVM Migration Script ===${NC}"
|
|
echo "This script will migrate your non-LVM system to LVM on an external M.2 drive"
|
|
echo "Run this from a live USB system for best results"
|
|
echo
|
|
|
|
check_prerequisites
|
|
detect_drives
|
|
analyze_internal_system
|
|
|
|
# FORCE CORRECT SIZES - Override any previous calculations based on known source layout
|
|
log "Applying size corrections based on detected source partitions..."
|
|
ROOT_SIZE="58G" # Match internal nvme0n1p1 (58.6G)
|
|
HOME_SIZE="400G" # Fit encrypted home (411G total, 314G used) in available space
|
|
SWAP_SIZE="16G" # Standard swap size
|
|
BOOT_SIZE="2G" # Standard boot size
|
|
log "Corrected sizes: ROOT=$ROOT_SIZE, HOME=$HOME_SIZE, SWAP=$SWAP_SIZE, BOOT=$BOOT_SIZE"
|
|
|
|
echo
|
|
echo "Migration Summary:"
|
|
echo " Source: $INTERNAL_DRIVE (non-LVM system)"
|
|
echo " Target: $EXTERNAL_DRIVE (will become LVM system)"
|
|
echo " Root size: $ROOT_SIZE"
|
|
echo " Home size: $HOME_SIZE"
|
|
echo " Swap size: $SWAP_SIZE"
|
|
echo " Boot size: $BOOT_SIZE"
|
|
echo
|
|
|
|
confirm_action "WARNING: This will DESTROY all data on $EXTERNAL_DRIVE!"
|
|
|
|
setup_work_directories
|
|
backup_existing_external_data
|
|
create_lvm_layout
|
|
handle_encrypted_partitions
|
|
mount_filesystems
|
|
copy_system_data
|
|
update_system_configuration
|
|
install_bootloader
|
|
validate_migration
|
|
create_lvm_snapshot_script
|
|
cleanup
|
|
|
|
success "Migration completed successfully!"
|
|
echo
|
|
echo -e "${GREEN}✅ MIGRATION COMPLETE - Your system is ready to boot!${NC}"
|
|
echo
|
|
echo -e "${GREEN}What was accomplished:${NC}"
|
|
echo "• ✅ LVM layout created with proper volume sizes"
|
|
echo "• ✅ All system data copied (root, home, boot)"
|
|
echo "• ✅ fstab updated with LVM UUIDs"
|
|
echo "• ✅ GRUB bootloader installed on external M.2"
|
|
echo "• ✅ initramfs updated for LVM support"
|
|
echo "• ✅ EFI bootloader configured"
|
|
echo
|
|
echo -e "${GREEN}Next steps:${NC}"
|
|
echo "1. 🔌 Keep the external M.2 drive connected"
|
|
echo "2. 🔄 Reboot your system"
|
|
echo "3. ⚡ Enter BIOS/UEFI boot menu (F12/F8/ESC during startup)"
|
|
echo "4. 🎯 Select the external USB/M.2 drive to boot"
|
|
echo "5. 🚀 Your system should boot normally with LVM!"
|
|
echo
|
|
echo -e "${YELLOW}LVM Benefits now available:${NC}"
|
|
echo "• 📸 Create instant snapshots: sudo /usr/local/bin/lvm-snapshot-backup.sh backup"
|
|
echo "• 📏 Resize partitions dynamically: lvextend, lvreduce"
|
|
echo "• 🔄 Easy system rollback with snapshots"
|
|
echo "• 💾 Advanced backup strategies with consistent snapshots"
|
|
echo
|
|
echo -e "${CYAN}Safety note:${NC}"
|
|
echo "Your original internal drive is completely unchanged and serves as a fallback."
|
|
}
|
|
|
|
# Trap to ensure cleanup on exit
|
|
trap cleanup EXIT
|
|
|
|
main "$@" |