Initial commit: combine nas_tool, nas_webdav, sync-utils

fix_stuck_snapshot.sh

@@ -0,0 +1,107 @@
+#!/bin/bash
+
+# Fix Stuck Time Machine Snapshot
+# When snapshots can't be deleted due to "Stale NFS file handle" error
+
+set -e
+
+echo "=== Fix Stuck Time Machine Snapshot ==="
+echo ""
+echo "This script fixes the 'Stale NFS file handle' error that prevents"
+echo "snapshot deletion. This happens when Time Machine has a stale"
+echo "connection to the backup destination."
+echo ""
+
+# Check current situation
+echo "📊 Current Status:"
+FREE_SPACE=$(df / | tail -1 | awk '{print $4}')
+FREE_SPACE_GB=$(echo "scale=2; $FREE_SPACE / 1024 / 1024" | bc)
+echo "   Free space: ${FREE_SPACE_GB}GB"
+echo ""
+
+SNAPSHOTS=$(tmutil listlocalsnapshots / 2>/dev/null | grep -v "Snapshots for disk" | grep -v "^$")
+if [ -n "$SNAPSHOTS" ]; then
+    echo "   Stuck snapshots found:"
+    echo "$SNAPSHOTS" | sed 's/^/     - /'
+else
+    echo "   ✓ No snapshots found"
+    exit 0
+fi
+
+echo ""
+echo "🔧 Solution: Temporarily remove Time Machine destination, delete snapshot, then re-add"
+echo ""
+echo "⚠️  IMPORTANT: This will temporarily disconnect Time Machine from your NAS."
+echo "   You'll need to re-add it after the snapshot is deleted."
+echo ""
+
+read -p "Do you want to proceed? (y/n) " -n 1 -r
+echo ""
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+    echo "Cancelled."
+    exit 0
+fi
+
+echo ""
+echo "Step 1: Removing Time Machine destination..."
+echo ""
+echo "   Please do this manually:"
+echo "   1. Open System Settings → General → Time Machine"
+echo "   2. Click the 'Remove' or '-' button next to your backup disk"
+echo "   3. Confirm removal"
+echo ""
+read -p "   Have you removed the Time Machine destination? (y/n) " -n 1 -r
+echo ""
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+    echo "   Please remove it first, then run this script again."
+    exit 1
+fi
+
+echo ""
+echo "Step 2: Waiting for Time Machine to disconnect..."
+sleep 5
+
+echo ""
+echo "Step 3: Attempting to delete stuck snapshot..."
+echo "$SNAPSHOTS" | while read snapshot; do
+    if [ -n "$snapshot" ]; then
+        # Extract date part
+        SNAP_DATE=$(echo "$snapshot" | sed 's/.*\.\([0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{6\}\)\.backup/\1/')
+        if [ -n "$SNAP_DATE" ]; then
+            echo "   Deleting: $snapshot"
+            if sudo tmutil deletelocalsnapshots "$SNAP_DATE" 2>/dev/null; then
+                echo "   ✅ Successfully deleted!"
+            else
+                echo "   ⚠️  Still stuck. Try restarting your Mac."
+                echo "      After restart, run: sudo tmutil deletelocalsnapshots $SNAP_DATE"
+            fi
+        fi
+    fi
+done
+
+echo ""
+echo "Step 4: Checking disk space..."
+sleep 3
+NEW_FREE_SPACE=$(df / | tail -1 | awk '{print $4}')
+NEW_FREE_SPACE_GB=$(echo "scale=2; $NEW_FREE_SPACE / 1024 / 1024" | bc)
+FREED_GB=$(echo "scale=2; $NEW_FREE_SPACE_GB - $FREE_SPACE_GB" | bc)
+
+echo "   New free space: ${NEW_FREE_SPACE_GB}GB"
+if (( $(echo "$FREED_GB > 0" | bc -l) )); then
+    echo "   ✅ Freed: ${FREED_GB}GB"
+else
+    echo "   ⚠️  Space not freed yet - may need restart"
+fi
+
+echo ""
+echo "Step 5: Re-adding Time Machine destination..."
+echo ""
+echo "   Now re-add your Time Machine backup:"
+echo "   1. System Settings → General → Time Machine"
+echo "   2. Click 'Add Backup Disk...'"
+echo "   3. Select 'Time Machine Folder' on 'DS224plus.local'"
+echo "   4. Enter your credentials"
+echo ""
+echo "   Or use the troubleshooting guide:"
+echo "   See: time_machine_troubleshooting.md"
+echo ""