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
204
old_scripts/emergency_install.sh
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204
old_scripts/emergency_install.sh
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#!/bin/bash
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# Emergency Package Installer for LVM Migration
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# Handles different Debian/Ubuntu distributions and package availability
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set -e
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# Colors
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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'
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log() { echo -e "${BLUE}[$(date '+%H:%M:%S')]${NC} $1"; }
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error() { echo -e "${RED}[ERROR]${NC} $1" >&2; }
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success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
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warning() { echo -e "${YELLOW}[WARNING]${NC} $1"; }
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echo -e "${GREEN}=== Emergency Package Installer ===${NC}"
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echo "Installing all packages required for LVM migration..."
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# Check if running as root
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if [ "$EUID" -ne 0 ]; then
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error "This script must be run as root. Use: sudo $0"
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exit 1
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fi
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# Detect distribution
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if [ -f /etc/os-release ]; then
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. /etc/os-release
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DISTRO="$ID"
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VERSION="$VERSION_ID"
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log "Detected distribution: $PRETTY_NAME"
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else
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DISTRO="unknown"
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warning "Could not detect distribution"
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fi
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# Update package lists
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log "Updating package lists..."
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apt update || warning "Failed to update package lists"
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# Function to try installing a package with alternatives
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try_install_package() {
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local primary="$1"
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shift
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local alternatives=("$@")
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log "Installing $primary..."
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if apt install -y "$primary" >/dev/null 2>&1; then
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success "Installed $primary"
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return 0
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fi
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# Try alternatives
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for alt in "${alternatives[@]}"; do
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log "Trying alternative: $alt"
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if apt install -y "$alt" >/dev/null 2>&1; then
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success "Installed $alt (alternative for $primary)"
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return 0
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fi
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done
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warning "Failed to install $primary or any alternatives"
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return 1
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}
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# Install packages with error handling and alternatives
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log "Installing core utilities..."
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try_install_package "util-linux"
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try_install_package "coreutils"
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try_install_package "bc"
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try_install_package "bsdmainutils" "bsdutils"
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log "Installing LVM and device mapper tools..."
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try_install_package "lvm2"
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try_install_package "dmsetup" "device-mapper"
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log "Installing encryption tools..."
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try_install_package "cryptsetup" "cryptsetup-bin"
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log "Installing filesystem tools..."
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try_install_package "e2fsprogs"
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try_install_package "dosfstools" "mtools"
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try_install_package "parted"
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log "Installing backup and monitoring tools..."
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try_install_package "rsync"
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try_install_package "pv" "pipe-viewer"
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log "Installing GRUB bootloader components..."
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# Different distributions may have different GRUB package names
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case "$DISTRO" in
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debian)
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try_install_package "grub-efi-amd64" "grub-efi" "grub-efi-amd64-bin"
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try_install_package "grub-pc-bin" "grub-pc"
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try_install_package "grub-common"
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;;
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ubuntu)
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try_install_package "grub-efi-amd64" "grub-efi"
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try_install_package "grub-pc-bin" "grub-pc"
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try_install_package "grub-common"
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try_install_package "grub2-common"
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;;
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*)
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# Generic attempt for unknown distributions
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warning "Unknown distribution, trying generic GRUB packages..."
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try_install_package "grub-efi-amd64" "grub-efi" "grub"
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try_install_package "grub-pc-bin" "grub-pc" "grub"
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try_install_package "grub-common" "grub2-common"
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;;
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esac
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log "Installing kernel and initramfs tools..."
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try_install_package "initramfs-tools" "dracut"
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# Don't install kernel on live system as it's not needed and may cause issues
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# try_install_package "linux-image-generic" "linux-image-amd64"
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log "Installing additional required tools..."
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try_install_package "udev" "systemd-udev"
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try_install_package "kmod" "module-init-tools"
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# Load kernel modules
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log "Loading required kernel modules..."
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modprobe dm_mod 2>/dev/null || warning "Failed to load dm_mod"
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modprobe dm_crypt 2>/dev/null || warning "Failed to load dm_crypt"
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modprobe dm_snapshot 2>/dev/null || warning "Failed to load dm_snapshot"
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# Check if LVM service is available and start it
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if systemctl list-unit-files | grep -q lvm2; then
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log "Starting LVM services..."
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systemctl start lvm2-monitor 2>/dev/null || warning "Could not start lvm2-monitor"
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systemctl start lvm2-lvmpolld 2>/dev/null || warning "Could not start lvm2-lvmpolld"
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fi
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# Verify critical tools are available
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log "Verifying tool installation..."
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missing_critical=()
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# Check for tool availability with alternatives
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check_tool() {
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local primary="$1"
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shift
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local alternatives=("$@")
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if command -v "$primary" >/dev/null 2>&1; then
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return 0
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fi
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for alt in "${alternatives[@]}"; do
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if command -v "$alt" >/dev/null 2>&1; then
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return 0
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fi
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done
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missing_critical+=("$primary")
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return 1
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}
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check_tool "lvm" "lvm2"
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check_tool "vgdisplay" "lvm"
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check_tool "pvcreate" "lvm"
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check_tool "lvcreate" "lvm"
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check_tool "cryptsetup"
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check_tool "rsync"
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check_tool "parted"
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check_tool "pv"
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check_tool "mkfs.ext4" "mke2fs"
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check_tool "mkfs.fat" "mkfs.vfat"
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check_tool "grub-install" "grub2-install"
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check_tool "update-grub" "grub-mkconfig"
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check_tool "update-initramfs" "dracut"
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if [ ${#missing_critical[@]} -eq 0 ]; then
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success "All critical tools are now available!"
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echo
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echo "Available tools:"
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for cmd in lvm vgdisplay cryptsetup rsync parted pv mkfs.ext4 grub-install; do
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if command -v "$cmd" >/dev/null 2>&1; then
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echo " ✓ $cmd: $(which $cmd)"
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fi
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done
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echo
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echo "You can now run: ./migrate_to_lvm.sh"
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else
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error "Still missing critical tools: ${missing_critical[*]}"
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echo
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echo "You may need to:"
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echo "1. Check internet connection for package downloads"
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echo "2. Try different package repositories"
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echo "3. Install packages manually with different names"
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echo "4. Use a different live system distribution"
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exit 1
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fi
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echo
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echo -e "${GREEN}Installation completed successfully!${NC}"
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echo "The system is now ready for LVM migration."
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echo
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echo "Next steps:"
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echo "1. Run: ./migrate_to_lvm.sh"
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echo "2. Follow the interactive prompts"
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echo "3. Validate with: ./validate_lvm_migration.sh"
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