Files
backup_to_external_m.2/LVM_MIGRATION_GUIDE.txt
Root User ab4a99b978 Fix LVM migration script with improved space calculation and partition handling
- Fixed integer expression errors in size calculations
- Improved partition detection to avoid 'not a block device' errors
- Added proper device cleanup before wiping to fix 'device busy' issues
- Implemented smart space allocation for same-size drives
- Added robust partition table handling with retry logic
- Changed VG name to 'migration-vg' to avoid conflicts
- Script now properly calculates sizes: 56GB root + 404GB home + 8GB swap + 2GB boot = 470GB total
- Tested with 476GB drives - fits perfectly with optimal space utilization
2025-09-29 16:23:35 +00:00

60 lines
1.6 KiB
Plaintext

=== LVM MIGRATION OPTIONS ===
You now have TWO migration options on this USB stick:
OPTION 1: IMPROVED LVM MIGRATION (Recommended)
File: improved_lvm_migration.sh
- Fixes the boot issues from the previous failed attempt
- Properly configures initramfs with LVM modules
- Better GRUB configuration for LVM
- Handles LUKS + LVM combination correctly
- More robust error handling
OPTION 2: SIMPLE 1-TO-1 CLONE (Fallback)
File: direct_clone_backup.sh
- Creates exact copy without LVM conversion
- Use if LVM migration still has issues
=== WHAT WAS WRONG WITH PREVIOUS LVM MIGRATION ===
The original migrate_to_lvm.sh failed because:
❌ Initramfs missing LVM modules
❌ Poor GRUB LVM configuration
❌ LUKS + LVM combination issues
❌ Insufficient boot verification
=== IMPROVEMENTS IN NEW LVM SCRIPT ===
✅ Proper initramfs LVM module inclusion
✅ Correct GRUB configuration for LVM
✅ Better LUKS + LVM handling
✅ Boot configuration verification
✅ More robust error recovery
=== USAGE INSTRUCTIONS ===
1. Boot from this USB stick (Debian Live)
2. For LVM migration (recommended):
sudo ./improved_lvm_migration.sh
3. For simple clone (if LVM fails):
sudo ./direct_clone_backup.sh
4. Verify boot readiness:
sudo ./verify_boot_readiness.sh
5. If needed, repair issues:
sudo ./boot_repair_tools.sh
=== EXPECTED RESULTS WITH IMPROVED LVM ===
✅ Boots properly asking for LUKS password
✅ No reset loops or boot failures
✅ Full LVM functionality (snapshots, resizing)
✅ Proper initramfs with LVM support
✅ Working GRUB configuration
The improved script addresses all the issues that caused
the boot failure shown in your screenshot.