Gan, Jimmy
71 lines
2.8 KiB
Markdown
71 lines
2.8 KiB
Markdown
# Apple Support Issue Summary
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## Problem Description
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**Main Issue:** Cannot free disk space to install macOS update due to OS update snapshot preserving all deleted/moved files.
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## Symptoms
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1. **System Data is 351GB** (should be ~20-30GB)
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2. **Disk is 99.8% full** (only 800MB free out of 494GB)
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3. **macOS update requires 17.64GB** but cannot free space
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4. **Every file deletion/move makes System Data grow** instead of freeing space
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## Root Cause
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**OS Update Snapshot is blocking space recovery:**
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- Snapshot name: `com.apple.os.update-C6AB179000F92C4C211177BC5C840A511D1AA2A227C324AA9C14FC599E9873`
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- Status: **NOT purgeable**
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- Note: "This snapshot limits the minimum size of APFS Container"
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- The snapshot preserves ALL deleted/moved files, preventing space recovery
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## What I've Tried (All Failed)
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1. ✅ Moved files to NAS (Synology DS224plus) - Files moved but space not freed
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2. ✅ Moved files to external drive - Files moved but space not freed
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3. ✅ Cleaned caches (`~/Library/Caches`, `~/.cache`, npm cache) - No effect
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4. ✅ Deleted local Time Machine snapshots - Ghost entry, can't delete
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5. ✅ Attempted `tmutil deletelocalsnapshots` - Error: "Stale NFS file handle"
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6. ✅ Attempted `tmutil thinlocalsnapshots` - No effect
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7. ✅ Restarted Mac multiple times - No effect
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8. ✅ Tried `softwareupdate --download --all` - Failed: "Not enough free disk space: 17.64 GB required"
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## Current System Status
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- **macOS Version:** macOS Tahoe (need to update to 26.2)
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- **Disk:** 494.4GB APFS container, 99.8% full
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- **Free Space:** 800MB (need 17.64GB for update)
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- **System Data:** 351GB (should be ~20-30GB)
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- **Snapshot:** OS update snapshot, NOT purgeable, cannot be deleted manually
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## The Catch-22
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- **Need:** 17.64GB free space to install macOS update
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- **Problem:** Cannot free space because OS update snapshot preserves all deleted/moved files
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- **Result:** Stuck - cannot update, cannot free space
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## What I Need from Apple Support
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1. **Tool to force-clear the OS update snapshot** (it's blocking space recovery)
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2. **Alternative method to install macOS update** with limited space
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3. **Recovery options** to break out of this catch-22 situation
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4. **System-level intervention** to release the 351GB in System Data
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## Technical Details
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- **Snapshot UUID:** F63E39F3-D495-4586-88A4-A1406A7EF46A
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- **Snapshot XID:** 6557111
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- **Container:** disk3 (494.4GB)
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- **Volume:** Macintosh HD (disk3s3)
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- **Snapshot Disk:** disk3s3s1
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## Files Are Safe
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- Files have been moved to NAS and external drive
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- Data is safe, but space cannot be recovered until snapshot is cleared
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- The issue is purely about freeing space, not data loss
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---
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**Request:** Please provide system-level tools or recovery methods to clear the OS update snapshot so I can free space and install the macOS update.
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