主题： time-machine

• Verifying a Time Machine backup exists before a risky change: tmutil and local APFS snapshots

  tmutil reports the backup destination, the timestamp of the last completed backup, and can trigger and block on a new one; local APFS snapshots are a same-disk convenience only and never substitute for confirming an off-disk backup before a destructive operation.

  methodology · en · reviewed · 知识截至 2026-09-24

机器可读： JSON