Mac os x disk0s2 i o error

Several functions may not work. Please re-enable javascript to access full functionality. Posted 11 December - AM. Posted 11 December - PM. Welcome to Bleeping Computer! Community Forum Software by IP. Javascript Disabled Detected You currently have javascript disabled. Register a free account to unlock additional features at BleepingComputer. Welcome to BleepingComputer , a free community where people like yourself come together to discuss and learn how to use their computers.

Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site. Click here to Register a free account now! Started by Start , Dec 11 AM. Please log in to reply. His Macbook model is: MacBook inch, Early His Macbook cannot boot. When the power button was pressed, the grey apple logo and the spinning thing appears.

In addition, there is a progress bar underneath. I tries to reboot all the devices but no success. Thanks, it seems this solved my problem File system check exit code is 8, now zero. Also to add, the problems began when downloading a large software program, Adobe creative cloud. My suspicion is it was too much for my memory and then the crash began.


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Same screen it gets stuck on. I ran it three times. The first two said the file system was modified, and then the last run, everything came back okay. I typed reboot and enter. Was prompted for login password. This was the same issue I had been having which brought me through all the repair steps upto the last attempt in single user. Not sure what the problem is here.

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And, yes, I was yelling. In gratitude. Glad to find simple solutions to complicated problems. There is clear a serious issue with HD so my last ditch effort was the fsck -fyd command on single mode. Waiting 10sec. Please help…Thanks. Re-run with -l to freeze volume. But performing this we should first take backup of the our Mac. I seem to be having the same problem as betina b.

I/O Error Log on a Mac | It Still Works

I have the same problem. Please help me. I need my Mac back. Please plea e please. Over the last few months I began to notice my iPhoto documents were getting corrupted. Laptop was unable to back up documents as of January Last night my computer tweaked out, the screen splitting down the middle and shifting half way across the computer. My mouse could not roam in the middle of the screen between the 6 and 7 keys, and when scrolling left or right it would continue to the other side of the screen, as if in a game of snake.

Force restarted and it worked for about an hour until dying again. Current situation starts computer with chime, grey screen, Apple logo and spinning wheel. Last couple times grey lines appeared across the screen. Every reboot goes well until just before the login screen where it freezes up on the grey screen. Computer sounds normal, fan is running, no overheating.

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All reboots freeze on the grey screen before the login page, and my caps lock has only successfully lit up twice. Battery responds but other than that the only other function that seems to work is the power button. My last hope short of returning to the Genius Bar!! Did you happen to find a solution to this problem? Your external drive may be failing, it happens and can cause problems. Then you would have to locate the identifier looks like disk3s2 or something like that for the Time Machine drive, mount that, and run fsck on that volume.

Good luck!

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OS drive and Data drive. Disk Utility is not able to repair it. So how can I run this fsck command on this disk?


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  4. Need help pls (Startup Problem, disk0s2: I/O error);
  5. You want the one that corresponds to the name of the drive the user partition. The battery was not working properly and since february im using it without battery. My problem is that since 2 days the brightness came up to full and im not being able to switch the mac on for long. Thank you very much in advance. I had previously cloned two partitions MacOS I did the change took me a few hours only to learn that neither partition would startup ….

    I tried to re-install MacOSX To get things going I tried What finally saved me was totally simple: I once more cloned the Good luck to you, Menseken. Thank you for the clear, concise advice for a novice. After much research for different solutions this was the easiest and fixed my issue. Much appreciation! Much appreciated!! Is this normal and should I wait it out? Thank you so much!

    I just ran this and it completely fixed the problems that Disk Utility kept reporting. Was there any resolution for you? I too, am having the same problem. I have searched online for hours upon hours and I cannot find a solution that works! You have to run fsck from Single User Mode, recovery mode, or a separate boot partition, otherwise the drive is mounted in write mode and fsck can not work or run properly. Any suggestions? I have a late imac updated the software and I cannot get it to boot at all, I got the same code 8 in disk utilities Anymore suggestions please.

    OS X Install fails without a descriptive error

    Command line always requires precise syntax! After wasting hours trying to get Disk Utility to fix my computer, and talking to Apple Help people in the USA to no avail your instructions worked perfectly. I am having the similar problem, replaced the hard drive in iMac, but now I would like to copy the files from old Mac HDD , I was able to see the folders after connecting USB, but I am not able to copy the files.

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    You think this means my hardrive is just on its last legs then? I am also unable to start the computer in recovery mode or safe mode, it just gets to the grey mac loading page and stops with the bar half full but never finishes. Hi thanks for all the info here! I get to the root but then I cannot enter any text. Am I just not giving it enough time to process? I let it run for fifteen minutes. When I ran the Fsck -fy this is the message I got:. However what I notice is that after ejecting my external HDD the permission problems reappear and I have to reinstall everything using safe boot and the last backup in time machine.

    Does anyone have any idea if the external HDD or the new ssd or ram creates the problem? Is something failing? Can you help me out with my MacBook Pro? I try to boot fsck on my mac according to your suggestion when it failed to show the HDD. When I put fsck in, it said command not found. What should I do? Thank you. This was a splendid advice. I used it for a Yosemite system disk. Thank you very much!

    That was easy. The Mac is telling you that once in S. The trick is how you find the partitions names you might have and fsck them. You sound very impatient, not good for running disk repair. Be patient, it can take a long time if the drive is large, slow, or failing. If you reboot in the middle of fsck running you can damage the disk and cause data loss. I hope you have a good backup handy. Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited. Jack Johnsman says:.

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