Complete rewrite: Single working LVM block-level backup script
- Removed 40+ broken/messy scripts, moved to old_scripts/ - Created lvm_block_backup.sh - proper block-level LVM snapshot backup - Uses dd for block-level cloning instead of file-level rsync - Successfully tested: 462GB backup in 33 minutes - Creates exact, bootable clone of internal drive to external drive - Proper LVM snapshot management with cleanup - Clear documentation in README_BACKUP.md - Clean, minimal solution that actually works
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root
297
old_scripts/fix_alpine_boot.sh
Executable file
297
old_scripts/fix_alpine_boot.sh
Executable file
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#!/bin/bash
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# Fix Alpine Boot for Automatic Backup
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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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print_status() {
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echo -e "${BLUE}[INFO]${NC} $1"
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}
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print_success() {
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echo -e "${GREEN}[SUCCESS]${NC} $1"
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}
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print_warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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print_error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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print_status "Fixing Alpine Boot Configuration for Automatic Backup"
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echo "========================================================"
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USB_DRIVE="/dev/sda"
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# Mount USB partitions
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BOOT_MOUNT="/tmp/fix_boot_$$"
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DATA_MOUNT="/tmp/fix_data_$$"
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mkdir -p "$BOOT_MOUNT" "$DATA_MOUNT"
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sudo mount "${USB_DRIVE}1" "$BOOT_MOUNT"
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sudo mount "${USB_DRIVE}2" "$DATA_MOUNT"
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print_status "Creating proper GRUB configuration..."
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# Create a better GRUB configuration
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sudo tee "$BOOT_MOUNT/boot/grub/grub.cfg" > /dev/null << 'EOF'
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set timeout=10
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set default=0
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menuentry "Automatic System Backup" {
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linux /boot/vmlinuz-lts modules=loop,squashfs,sd-mod,usb-storage quiet nomodeset console=tty0 alpine_dev=sda2:ext4 alpine_repo=http://dl-cdn.alpinelinux.org/alpine/v3.18/main/ modloop=/boot/modloop-lts apkovl=/backup-tools/alpine.apkovl.tar.gz autobackup=yes
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initrd /boot/initramfs-lts
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}
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menuentry "Manual Backup Shell" {
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linux /boot/vmlinuz-lts modules=loop,squashfs,sd-mod,usb-storage console=tty0 alpine_dev=sda2:ext4 alpine_repo=http://dl-cdn.alpinelinux.org/alpine/v3.18/main/ modloop=/boot/modloop-lts apkovl=/backup-tools/alpine.apkovl.tar.gz
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initrd /boot/initramfs-lts
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}
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menuentry "Alpine Linux Recovery" {
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linux /boot/vmlinuz-lts modules=loop,squashfs,sd-mod,usb-storage console=tty0
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initrd /boot/initramfs-lts
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}
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EOF
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print_status "Creating improved Alpine overlay..."
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# Create a new overlay with better startup script
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OVERLAY_DIR="/tmp/overlay_$$"
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mkdir -p "$OVERLAY_DIR"/{etc/init.d,etc/runlevels/default,usr/local/bin,root}
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# Create the main backup script
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sudo tee "$OVERLAY_DIR/usr/local/bin/backup-system" > /dev/null << 'EOF'
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#!/bin/sh
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# Main backup system script
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export PATH=/usr/local/bin:/usr/bin:/bin:/sbin:/usr/sbin
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clear
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echo "========================================"
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echo " BOOTABLE BACKUP SYSTEM"
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echo "========================================"
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echo
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# Function to detect drives
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detect_drives() {
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echo "Detecting drives..."
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sleep 3
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# Get all block devices
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echo "Available drives:"
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echo "=================="
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lsblk -d -o NAME,SIZE,TYPE,TRAN | head -20
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echo
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# Auto-detect candidates
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echo "Drive candidates:"
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echo "Internal drives (non-USB):"
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lsblk -d -n -o NAME,SIZE,TRAN | grep -v usb | grep -v sda | nl -v 1
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echo
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echo "External drives (USB, excluding boot drive):"
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lsblk -d -n -o NAME,SIZE,TRAN | grep usb | grep -v sda | nl -v 1
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echo
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}
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# Function to get user choice
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get_drives() {
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# Source drive selection
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echo "SELECT SOURCE DRIVE (internal drive to backup):"
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echo "================================================"
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INTERNAL_LIST=$(lsblk -d -n -o NAME | grep -v sda | grep -v loop)
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echo "$INTERNAL_LIST" | nl -v 1
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echo
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read -p "Enter source drive number or full path (e.g., /dev/nvme0n1): " SOURCE_INPUT
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if echo "$SOURCE_INPUT" | grep -q "^[0-9]"; then
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SOURCE_DRIVE="/dev/$(echo "$INTERNAL_LIST" | sed -n "${SOURCE_INPUT}p")"
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else
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SOURCE_DRIVE="$SOURCE_INPUT"
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fi
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# Target drive selection
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echo
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echo "SELECT TARGET DRIVE (external drive, will be OVERWRITTEN):"
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echo "=========================================================="
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EXTERNAL_LIST=$(lsblk -d -n -o NAME | grep -v sda | grep -v loop)
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echo "$EXTERNAL_LIST" | nl -v 1
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echo
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read -p "Enter target drive number or full path: " TARGET_INPUT
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if echo "$TARGET_INPUT" | grep -q "^[0-9]"; then
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TARGET_DRIVE="/dev/$(echo "$EXTERNAL_LIST" | sed -n "${TARGET_INPUT}p")"
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else
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TARGET_DRIVE="$TARGET_INPUT"
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fi
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}
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# Function to confirm and backup
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run_backup() {
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echo
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echo "BACKUP CONFIGURATION:"
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echo "===================="
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echo "Source: $SOURCE_DRIVE (will be copied FROM)"
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echo "Target: $TARGET_DRIVE (will be OVERWRITTEN)"
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echo
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# Show drive sizes
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if [ -b "$SOURCE_DRIVE" ]; then
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SOURCE_SIZE=$(blockdev --getsize64 "$SOURCE_DRIVE" 2>/dev/null || echo "unknown")
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if [ "$SOURCE_SIZE" != "unknown" ]; then
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SOURCE_GB=$((SOURCE_SIZE / 1024 / 1024 / 1024))
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echo "Source size: ${SOURCE_GB}GB"
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fi
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fi
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if [ -b "$TARGET_DRIVE" ]; then
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TARGET_SIZE=$(blockdev --getsize64 "$TARGET_DRIVE" 2>/dev/null || echo "unknown")
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if [ "$TARGET_SIZE" != "unknown" ]; then
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TARGET_GB=$((TARGET_SIZE / 1024 / 1024 / 1024))
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echo "Target size: ${TARGET_GB}GB"
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fi
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fi
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echo
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echo "⚠️ ALL DATA ON $TARGET_DRIVE WILL BE DESTROYED! ⚠️"
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echo
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read -p "Continue with backup? (yes/no): " CONFIRM
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if [ "$CONFIRM" != "yes" ]; then
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echo "Backup cancelled"
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return 1
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fi
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echo
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echo "Starting backup..."
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echo "=================="
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# Check if pv is available for progress
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if command -v pv >/dev/null 2>&1; then
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echo "Using pv for progress display"
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dd if="$SOURCE_DRIVE" bs=4M 2>/dev/null | pv -s "$SOURCE_SIZE" | dd of="$TARGET_DRIVE" bs=4M conv=fdatasync 2>/dev/null
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else
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echo "Using dd with status=progress"
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dd if="$SOURCE_DRIVE" of="$TARGET_DRIVE" bs=4M status=progress conv=fdatasync
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fi
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RESULT=$?
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echo
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if [ $RESULT -eq 0 ]; then
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echo "========================================"
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echo " BACKUP COMPLETED SUCCESSFULLY!"
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echo "========================================"
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else
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echo "========================================"
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echo " BACKUP FAILED!"
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echo "========================================"
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fi
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echo
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echo "System will shutdown in 30 seconds..."
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echo "(Press Ctrl+C to cancel)"
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# Countdown
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for i in 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1; do
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echo -n "$i "
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sleep 1
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done
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echo
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echo "Shutting down..."
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poweroff
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}
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# Main execution
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detect_drives
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get_drives
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run_backup
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EOF
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chmod +x "$OVERLAY_DIR/usr/local/bin/backup-system"
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# Create init script that runs on boot
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sudo tee "$OVERLAY_DIR/etc/init.d/autobackup" > /dev/null << 'EOF'
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#!/sbin/openrc-run
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name="autobackup"
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description="Automatic backup system"
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depend() {
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need localmount
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after bootmisc
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}
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start() {
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# Check if autobackup parameter was passed
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if grep -q "autobackup=yes" /proc/cmdline; then
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ebegin "Starting automatic backup system"
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# Wait for devices to settle
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sleep 5
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# Run backup system
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/usr/local/bin/backup-system
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eend $?
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fi
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}
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EOF
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chmod +x "$OVERLAY_DIR/etc/init.d/autobackup"
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# Enable the service
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ln -sf /etc/init.d/autobackup "$OVERLAY_DIR/etc/runlevels/default/autobackup"
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# Create profile for manual shell access
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sudo tee "$OVERLAY_DIR/root/.profile" > /dev/null << 'EOF'
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export PATH=/usr/local/bin:/usr/bin:/bin:/sbin:/usr/sbin
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echo "========================================"
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echo " BACKUP SYSTEM SHELL ACCESS"
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echo "========================================"
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echo
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echo "Available commands:"
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echo " backup-system - Start interactive backup"
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echo " lsblk - List block devices"
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echo " fdisk -l - List partitions"
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echo
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echo "Manual backup example:"
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echo " dd if=/dev/nvme0n1 of=/dev/sdb bs=4M status=progress"
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echo
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EOF
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# Create the overlay archive
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cd "$OVERLAY_DIR"
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tar czf "$DATA_MOUNT/alpine.apkovl.tar.gz" *
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cd -
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# Copy backup tools
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SCRIPT_DIR=$(dirname "$(realpath "$0")")
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sudo cp "$SCRIPT_DIR"/*.sh "$DATA_MOUNT/" 2>/dev/null || true
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# Cleanup
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sudo umount "$BOOT_MOUNT" "$DATA_MOUNT"
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rmdir "$BOOT_MOUNT" "$DATA_MOUNT"
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rm -rf "$OVERLAY_DIR"
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print_success "Alpine boot configuration fixed!"
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print_success "USB: $USB_DRIVE"
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echo
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print_success "Fixed Issues:"
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print_success "✅ Proper GRUB kernel parameters"
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print_success "✅ Correct Alpine overlay loading"
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print_success "✅ Automatic backup service startup"
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print_success "✅ Interactive drive selection"
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print_success "✅ Manual shell access option"
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echo
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print_warning "Now test by booting from USB and selecting 'Automatic System Backup'"
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