56c07dbe49
- 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
75 lines
2.5 KiB
Bash
Executable File
75 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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# LVM Migration Preview Script
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# Shows current status and what the migration will do
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set -euo pipefail
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# Colors
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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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RED='\033[0;31m'
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NC='\033[0m'
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echo -e "${BLUE}=== LVM Migration Preview ===${NC}"
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echo
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echo -e "${GREEN}Current Boot Status:${NC}"
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echo "Root mounted from: $(findmnt -n -o SOURCE /)"
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echo "Boot mounted from: $(findmnt -n -o SOURCE /boot)"
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echo "Home mounted from: $(findmnt -n -o SOURCE /home)"
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echo
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echo -e "${GREEN}Current LVM Structure (External M.2):${NC}"
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sudo vgs migration-vg 2>/dev/null || echo "No VG found"
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echo
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sudo lvs migration-vg 2>/dev/null || echo "No LVs found"
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echo
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echo -e "${GREEN}Current Drive Layout:${NC}"
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echo "External M.2 (sda):"
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lsblk /dev/sda
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echo
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echo "Internal NVMe (nvme0n1):"
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lsblk /dev/nvme0n1
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echo
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echo -e "${GREEN}Available Space Analysis:${NC}"
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echo "External VG size: $(sudo vgs --noheadings --units g -o vg_size migration-vg | tr -d ' ')B"
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echo "External VG free: $(sudo vgs --noheadings --units g -o vg_free migration-vg | tr -d ' ')B"
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echo "Internal drive size: $(lsblk -b -n -o SIZE /dev/nvme0n1 | awk '{printf "%.1fGB", $1/1024/1024/1024}')"
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echo
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echo -e "${YELLOW}Migration Plan:${NC}"
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echo "1. ✅ Wipe internal NVMe drive completely"
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echo "2. ✅ Create new GPT partition table"
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echo "3. ✅ Create EFI boot partition (512MB)"
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echo "4. ✅ Create LVM partition (remaining space)"
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echo "5. ✅ Set up LVM with volume group 'internal-vg'"
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echo "6. ✅ Create logical volumes matching current structure"
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echo "7. ✅ Copy all data from external to internal"
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echo "8. ✅ Configure GRUB for LVM boot"
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echo "9. ✅ Set up LVM snapshot capabilities"
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echo "10. ✅ Reserve 20% space for snapshots"
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echo
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echo -e "${RED}⚠️ WARNINGS:${NC}"
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echo "• This will COMPLETELY WIPE the internal NVMe drive"
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echo "• All current data on internal drive will be lost"
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echo "• Make sure you're booted from external M.2 (verified above)"
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echo "• Ensure external M.2 LED is active/blinking"
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echo
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echo -e "${GREEN}Snapshot Features After Migration:${NC}"
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echo "• lvm-snapshot-manager create - Create system snapshots"
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echo "• lvm-snapshot-manager list - List existing snapshots"
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echo "• lvm-snapshot-manager remove - Remove snapshots"
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echo "• lvm-snapshot-manager merge - Restore from snapshot"
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echo "• snapshot-backup - Backup using snapshots"
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echo
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echo -e "${BLUE}Ready to proceed?${NC}"
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echo "Run: sudo ./migrate_lvm_to_internal.sh"
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echo
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echo -e "${YELLOW}Estimated time: 2-4 hours depending on data size${NC}" |