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ahknight / fix_timemachine_backup.sh

Last active August 9, 2023 20:25

When Time Machine asks you to delete your backups and start over, ignore it. Run this and then start a backup again.

	#!/bin/bash -x

	# Generally based on ideas found at:
	# http://www.garth.org/archives/2011,08,27,169,fix-time-machine-sparsebundle-nas-based-backup-errors.html
	#
	# Reduced the ideas there down to their essentials.
	# 1. Unlock the image.
	# 2. Reset the saved failure in the backup metadata.
	# 3. Verify/fix the filesystem.