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Mike, Mac Medic
Category: Mac
Satisfied Customers: 8204
Experience:  Over 20 years IT experience with Apple computers in publishing, marketing and design.
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I am having difficulty accessing my Time Machine. I get the

Customer Question

I am having difficulty accessing my Time Machine. I get the following error message: The backup disk image "/Volumes/Data/XXXXX XXXXXam's Computer.sparsebundle" could not be accessed (error-1). I recently upgraded to Snow Leopard and bought an external harddrive, so not sure if these are contributing to the problem.
Submitted: 5 years ago.
Category: Mac
Expert:  robgranholm replied 5 years ago.
Hi, I've worked with Time Machine a lot, this happens from time to time. It's usually best to start over and make a clean backup, but this does mean you lose your previous backups. There are a few technical things we can try, such as running disk utility on the sparsebundle, which could fix it, but in my experiences happens less than %50 of the time. Let me know how you'd like to proceed and I'll be glad to continue troubleshooting with you.
Customer: replied 5 years ago.
I have recently cleaned up my computer's harddrive by deleting a lot of old files. So, I would prefer to not lose previous backups if at all possible. Let's start first by running disk utilities and then proceed to making a clean backup (and losing previous backups) as a last resort. Can you give me instructions for the first step of running disk utilities. Thanks.
Expert:  robgranholm replied 5 years ago.
Yep. Mount the sparsebundle by double clicking it. Then open Disk Utility in the utilities folder. A window will open, select the sparsebundle on the left, and then under the first aid menu, click repair.
Customer: replied 5 years ago.
How do I find the sparsebundle in order to double click on it? I don't know what a "sparsebundle" is so I'm driving a little blind here. I presume I go into Finder and should be able to locate it there to double-click on it?
Customer: replied 5 years ago.
OK, I think I found the sparsebundle in Finder. It was visible once I clicked on my Time Capsule in Finder. When I double-clicked on the sparsebundle File, I received a warning message that the sparsebundle file could not be mounted.

When I go into Disk Utility, there is no option to Repair Disk (greyed out), so I clicked on Verify Disk instead and got the following message:

Verifying volume "disk1s2"
Checking Journaled HFS Plus volume.
Detected a case-sensitive volume.
Catalog file entry not found for extent
The volume could not be verified completely
Error: This disk needs to be repaired. Click Repair Disk.

Even though it is telling me to click on Repair Disk, I am still not able to do so (still greyed out).
Customer: replied 5 years ago.
The lack of timely responses to my e-mails is really inconsistent with the marketing slogan of this site: "Ask a Mac Question, Get an Answer ASAP". I'm really disappointed in the service. I will figure this out another way. Please discontinue my request and provide a refund. Thank you.