Initial remote commit

test/scan1.sh

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+# debugfs can search for directory entries by name
+# even without a valid path
+debugfs -c /dev/nbd0 << 'EOF'
+stat <1585918>
+EOF
+
+# Use the parent inode from stat to walk upward
+# inode 1585918 is 'volumes' - its .. entry points to pterodactyl dir
+# pterodactyl's .. points to lib
+# lib's .. points to var
+
+# Find parent chain by reading .. entries
+python3 -c "
+import subprocess
+
+def get_parent(inode):
+    r = subprocess.run(
+        ['debugfs', '-c', '-R', f'ls -l <{inode}>', '/dev/nbd0'],
+        capture_output=True, text=True
+    )
+    for line in r.stdout.splitlines():
+        if '..' in line:
+            parts = line.split()
+            for p in parts:
+                try:
+                    n = int(p)
+                    if n > 0 and n != inode:
+                        return n
+                except: pass
+    return None
+
+def get_name(inode):
+    r = subprocess.run(
+        ['debugfs', '-c', '-R', f'stat <{inode}>', '/dev/nbd0'],
+        capture_output=True, text=True
+    )
+    return r.stdout[:200]
+
+# Walk up from volumes inode
+inode = 1585918
+chain = [inode]
+print(f'Walking up from inode {inode} (volumes)...')
+for i in range(10):
+    parent = get_parent(inode)
+    if parent is None or parent == inode or parent in chain:
+        break
+    print(f'  inode {inode} -> parent {parent}')
+    chain.append(parent)
+    inode = parent
+
+print(f'Chain: {chain}')
+print()
+
+# Now list each parent to find siblings of pterodactyl/volumes
+for ino in chain[1:]:
+    print(f'Contents of inode {ino}:')
+    r = subprocess.run(
+        ['debugfs', '-c', '-R', f'ls <{ino}>', '/dev/nbd0'],
+        capture_output=True, text=True
+    )
+    print(r.stdout[:500])
+    print()
+"