The backup disk image “My MacBook Air.sparsebundle” could not be accessed (error 19).

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The backup disk image “My MacBook Air.sparsebundle” could not be accessed (error 19).

This question has been asked before but never actually answered. Backing up to a NAS and everything works fine until, once or twice a year, this happens (error 19). No indication what (error 19) means. The NAS drive is accessible and the existing .sparsebundle looks fine when examined with finder. I can delete the .sparsebundle file and start all over, but why? Isn't there a better way? It takes a good 12 hours to do a completely fresh backup.

MacBook Air

Posted on Jan 3, 2023 6:43 PM

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Answer 1

MVegas21

Community Specialist

Jan 5, 2023 8:51 AM in response to jay.l.fisher

Hi jay.l.fisher,

Try testing the issue in safe mode. This will start up your Mac so that it performs certain checks and prevents some software from automatically loading or opening, which could help narrow down the cause of the issue. This article will walk you through the steps: How to use safe mode on your Mac.

Apple silicon

1. Shut down your Mac.

2. Turn on your Mac and continue to press and hold the power button until you see the startup options window.

3. Select your startup disk, then press and hold the Shift key while clicking “Continue in Safe Mode.”

4. Log in to your Mac. You might be asked to log in again.

Intel processor

1. Turn on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.

2. Release the key when you see the login window, then log in to your Mac.

3. You might be asked to log in again. On either the first or second login window, you should see ”Safe Boot” in the upper-right corner of the window.

If the issue persists, the manufacturer of the NAS device may be able to provide some additional guidance.

Regards.

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The backup disk image “My MacBook Air.sparsebundle” could not be accessed (error 19).

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