Hi all,
I have a disk that is used only for timemachine connected by USB.
Everything seemed fine and I shut my computer down as normal one evening, but on powering up again I got this error:
I tried to run first aid in Disk Utility as a first fix, and got the following errors:
I tried to follow step 7.9 of the FAQ, but testdisk showed that both file headers were OK.
Are there any other suggestions? I can read the disk fine, but I can't add new backups to it. I know that trying to copy a timemachine backup to another disk will make it take up exponentially more diskspace than the current size-on-disk, because it will make a new copy of each file rather than just a link. I don't have any software to perform a byte-by-byte clone.
At the moment I'm thinking of just reformatting the disk and restarting my TimeMachine backup - I don't think I'll lose anything if I do it now.
Timemachine Disk has become read-only - possible to repair using Testdisk?
Forum rules
When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
-
- Posts: 2735
- Joined: 04 Jan 2019, 09:48
- Location: Hannover, Deutschland (Germany, Allemagne)
Re: Timemachine Disk has become read-only - possible to repair using Testdisk?
Use a live linux like GParted (very small file to download) and use ddrescue as described in the manual file Testdisk.pdfI don't have any software to perform a byte-by-byte clone.
For further information how to interpret the line "invalid key length" please consult with a specialized apple forum.
Re: Timemachine Disk has become read-only - possible to repair using Testdisk?
Thanks for your replies.
From reading around performing a clone of the drive while ignoring the hardlinks that Apple uses to make timemachine possible would also clone the corrupted file system. I decided to simply start afresh on the Timemachine backup. If the problem happens again I'll need to look at replacing the drive.
Cheers!
From reading around performing a clone of the drive while ignoring the hardlinks that Apple uses to make timemachine possible would also clone the corrupted file system. I decided to simply start afresh on the Timemachine backup. If the problem happens again I'll need to look at replacing the drive.
Cheers!