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6
votes
4answers
28k views

Repair disk from single user mode (fsck fails)

Earlier today my 2009 iMac emitted I/O errors trying to copy files. So I ran disk utility, verify disk to see if anything was amiss. It was. But as it's my startup disk I couldn't repair it, so I ...
4
votes
1answer
367 views

OS X: fsck_hfs unable to fix volume directory count

I'm running fsck_hfs on a very large volume. Unfortunately, there's an issue it appears to be unable to fix -- it reports it, loops back to start with Rechecking..., and reports it again, ad ...
2
votes
2answers
3k views

Mountain Lion Installer detects hard drive damage

I downloaded and ran the Mountain Lion Installer today for my mid-2007 iMac. After rebooting and preparing to install, I receive an error message that the hard disk was damaged and the installer could ...
1
vote
2answers
5k views

Fixing up a HFS+ filesystem enough to rescue some files

I have a HFS+ formatted drive that just died on me. I have a back up but it's a about a week old. Unfortunately, I have a few files that I've changed and added since then that I would like to rescue ...
1
vote
1answer
185 views

fsck_hfs keeps crashing when trying to repair my Time Machine volume

I've got my Time Machine volume (direct attached, USB) corrupted by accidentally flicking the switch while it's running. Now neither Disk Utility nor fsck_hfs can repair the drive. Investigating it ...
1
vote
0answers
4k views

Macintosh HD missing after failed catalog btree rebuilding

There is an I/O error in the hard disk in my MacBook Pro running Mountain Lion and as I start it up, a progress bar fills up and then it shuts down on its own. I attempted to recover the files in ...
0
votes
2answers
21k views

What are next steps when fsck reports “could not be repaired after 3 attempts”?

My Mac Book Pro 13.-" doesn´t get past the grey booting screen with the apple and the spinning wheel (The loading bar appears but when it´s done nothing happens) I have 220 GB in one single ...
0
votes
2answers
1k views

Disk Utility says disk is corrupt after running fsck -fy

Disk utility reports that the disk needs to be repaired. I can't find the original boot disk, so I booted to single user mode and ran: fsck -fy This reported that it fixed a problem, and that the ...
0
votes
0answers
104 views

How to recover files by original filename without access to beginning of disk/partition

As a result of a dd user error the first Gigabyte was overwritten on a recent Macbook Air and it seems the beginning of all partitions are lost. Except for carving files using photorec or similar is ...
0
votes
0answers
762 views

How to “scan disk” or “repair disk” by booting up in single user mode and scan disk?

I think when we are using the Mac, we can't choose "Repair Disk" in Disk Utilty to repair the current hard drive, as the drive is being used. If "Verify Disk" is used, it only takes about 3 to 5 ...
0
votes
2answers
650 views

screen on my MacBook Pro goes completelly black after login

I was fixing my Mac partition by rebooting and holding CMD+S and then typing fsck -fy It found some issues and (probably) fixed them. Now when I boot into MacOS after some time the screen goes ...