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
49 lines
1.5 KiB
Markdown
49 lines
1.5 KiB
Markdown
# LVM Block-Level Backup Tool
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## What This Does
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This tool performs a **proper** LVM snapshot backup by:
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1. ✅ Creating consistent LVM snapshots of your internal drive
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2. ✅ Cloning entire volumes **block-for-block** to external drive
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3. ✅ Creating an exact, bootable copy of your system
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4. ✅ Using full drive capacity efficiently
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## Why This Is Better
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- **Fast**: Block-level copying is much faster than file copying
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- **Complete**: Exact bit-for-bit copy including all metadata
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- **Bootable**: External drive can boot your system directly
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- **Space Efficient**: Uses full drive capacity, no filesystem overhead
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- **Consistent**: Snapshots ensure data consistency during backup
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## Usage
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```bash
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# Simple one-command backup
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sudo ./lvm_block_backup.sh
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```
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## Requirements
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- Both drives must have LVM setup
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- External drive volume group: `migration-vg`
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- Internal drive volume group: `internal-vg`
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- At least 6GB free space for snapshots
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## What Gets Backed Up
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- **Root volume**: Complete system, applications, configurations
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- **Home volume**: All user data (including encrypted LUKS)
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- **Boot volume**: Kernels, bootloader, boot configuration
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## Result
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After backup, your external drive contains an exact copy that can:
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- Boot independently from BIOS/UEFI menu
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- Be mounted to access files
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- Serve as complete system recovery
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---
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**Note**: The `old_scripts/` directory contains 40+ previous backup attempts that didn't work properly. This single script replaces all of them. |