Initial commit: combine nas_tool, nas_webdav, sync-utils

aggressive_free_system_data.sh

@@ -0,0 +1,148 @@
+#!/bin/bash
+
+# Aggressive Free System Data (351GB)
+# When normal methods don't work
+
+set -e
+
+echo "=== Aggressive Free System Data (351GB) ==="
+echo ""
+echo "Since normal methods didn't work, we need to be more aggressive."
+echo ""
+
+FREE_SPACE_BEFORE=$(df / | tail -1 | awk '{print $4}')
+FREE_SPACE_GB_BEFORE=$(echo "scale=2; $FREE_SPACE_BEFORE / 1024 / 1024" | bc)
+echo "Current free space: ${FREE_SPACE_GB_BEFORE}GB"
+echo ""
+
+echo "🔍 Checking Time Machine configuration..."
+TM_DEST=$(defaults read /Library/Preferences/com.apple.TimeMachine LastDestinationID 2>/dev/null || echo "NONE")
+if [ "$TM_DEST" != "NONE" ]; then
+    echo "   ⚠️  Time Machine destination still configured: $TM_DEST"
+    echo "   This means snapshots may still be created!"
+    echo ""
+    echo "   You MUST remove it in System Settings:"
+    echo "   System Settings → Time Machine → Remove backup disk"
+    echo ""
+    read -p "   Have you removed it? (y/n) " -n 1 -r
+    echo ""
+    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        echo "   ⚠️  Please remove it first!"
+        exit 1
+    fi
+else
+    echo "   ✅ Time Machine destination removed"
+fi
+echo ""
+
+echo "🔧 Method 1: Force delete all local snapshots..."
+SNAPSHOTS=$(tmutil listlocalsnapshots / 2>/dev/null | grep -v "Snapshots for disk" | grep -v "^$")
+if [ -n "$SNAPSHOTS" ]; then
+    echo "$SNAPSHOTS" | while read snapshot; do
+        if [ -n "$snapshot" ]; then
+            SNAP_DATE=$(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: $snapshot"
+                sudo tmutil deletelocalsnapshots "$SNAP_DATE" 2>&1 || echo "     ⚠️  Failed (ghost entry)"
+            fi
+        fi
+    done
+else
+    echo "   No snapshots found"
+fi
+echo ""
+
+echo "🔧 Method 2: Aggressive thinning (keep only 1GB, 1 day)..."
+sudo tmutil thinlocalsnapshots / 1000000000 1 2>&1
+echo "   ✓ Completed"
+echo ""
+
+echo "🔧 Method 3: Disable Time Machine completely..."
+sudo tmutil disable 2>/dev/null || echo "   ⚠️  Could not disable (may already be disabled)"
+echo ""
+
+echo "🔧 Method 4: Clear Time Machine database..."
+echo "   ⚠️  This will clear Time Machine's local database"
+read -p "   Proceed? (y/n) " -n 1 -r
+echo ""
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    # Backup first
+    sudo cp -r /Library/Preferences/com.apple.TimeMachine.plist /Library/Preferences/com.apple.TimeMachine.plist.backup 2>/dev/null || true
+    echo "   Backed up preferences"
+    
+    # Clear local snapshots database
+    sudo rm -rf /System/Volumes/Data/.timemachine/* 2>/dev/null || true
+    echo "   ✓ Cleared Time Machine local data"
+fi
+echo ""
+
+echo "🔧 Method 5: Force filesystem sync and purge..."
+sync
+if command -v purge &> /dev/null; then
+    sudo purge
+    echo "   ✓ Purged"
+fi
+echo ""
+
+echo "🔧 Method 6: Use macOS storage optimization..."
+echo ""
+echo "   ⚠️  CRITICAL: You need to use macOS's built-in tool:"
+echo ""
+echo "   1. Apple Menu → About This Mac → Storage"
+echo "   2. Click 'Manage...'"
+echo "   3. Look for 'Optimize Storage' or similar option"
+echo "   4. This will release purgeable space"
+echo ""
+echo "   OR use Terminal:"
+echo "   sudo tmutil thinlocalsnapshots / 1000000000 1"
+echo "   sudo purge"
+echo ""
+
+echo "⏳ Waiting for system to update..."
+sleep 15
+
+# Check results
+FREE_SPACE_AFTER=$(df / | tail -1 | awk '{print $4}')
+FREE_SPACE_GB_AFTER=$(echo "scale=2; $FREE_SPACE_AFTER / 1024 / 1024" | bc)
+FREED_GB=$(echo "scale=2; $FREE_SPACE_GB_AFTER - $FREE_SPACE_GB_BEFORE" | bc)
+
+echo ""
+echo "=== Results ==="
+echo "   Before: ${FREE_SPACE_GB_BEFORE}GB free"
+echo "   After:  ${FREE_SPACE_GB_AFTER}GB free"
+if (( $(echo "$FREED_GB > 100" | bc -l) )); then
+    echo "   ✅ Successfully freed: ${FREED_GB}GB!"
+elif (( $(echo "$FREED_GB > 0" | bc -l) )); then
+    echo "   ✅ Freed: ${FREED_GB}GB"
+else
+    echo "   ⚠️  No space freed yet"
+fi
+echo ""
+
+echo "=== If Still No Change ==="
+echo ""
+echo "The 351GB in System Data is likely:"
+echo "  1. Purgeable space that macOS won't release until needed"
+echo "  2. APFS snapshot overhead (the OS update snapshot)"
+echo "  3. Reserved space for system operations"
+echo ""
+echo "Try these:"
+echo ""
+echo "1. **Create a large file to force purge**:"
+echo "   This forces macOS to release purgeable space:"
+echo "   dd if=/dev/zero of=~/test_large_file bs=1g count=50"
+echo "   (This creates a 50GB file, forcing purge)"
+echo "   Then delete it: rm ~/test_large_file"
+echo ""
+echo "2. **Use Activity Monitor**:"
+echo "   Open Activity Monitor → Disk tab"
+echo "   Look for 'Purgeable' space"
+echo ""
+echo "3. **Check Storage Management again**:"
+echo "   The System Data may show as 'Purgeable'"
+echo "   macOS will release it when space is actually needed"
+echo ""
+echo "4. **The space may already be available**:"
+echo "   Even though System Data shows 351GB, the space"
+echo "   may be purgeable and available when needed"
+echo ""