Disk0s2 I/o Error Mac
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I/O error, stuck on grey screen If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want http://www.mac-forums.com/showthread.php?t=315714 to visit from the selection below. Welcome to Mac-Forums! Join us to comment and to customize http://www.bleepingcomputer.com/forums/t/366395/urgent-disk0s2-io-error/ your site experience! Members have access to different forum appearance options, and many more functions. Results 1 to 9 of 9 Thread: Failed hard drive? I/O error, stuck on grey screen Tweet Thread Tools Show Printable Version Subscribe to this Thread… 09-24-2014,05:56 PM #1 johnc27 View Profile View Forum Posts Member Since Sep 24, 2014 Posts 4 Failed hard drive? I/O error, stuck on grey screen Mid o error 2009 Macbook Pro, Mavericks I've got a serious booting issue going on. The first symptom was my computer not being able to boot past the grey apple logo screen with the spinning gear. The fsck command in single user mode apparently came up okay, but verbose mode revealed "disk0s2 I/O error" I was finally able to get it to boot to the recovery partition but multiple things go wrong here. First of all, Disk Utility cannot repair Macintosh HD, and trying to make disk0s2 i/o error a back up to an external results in something like "cannot copy, I/O error." Furthermore, I cannot use the reinstall OS X application, because it says I am not connected to the internet, even though the network utility says I am, and I can actually use Safari successfully in the "Get help online" option. Lately, my computer boots to the recovery partition by default, even though disk utility shows that Macintosh HD is mounted. When I go to "copy image" I can even see all of my files (what a tease!) I also recently noticed something in single user mode; when I ran fsck before, it checked "OS X Base Volume." When I get it to check Macintosh HD using fsck_hbn -fy /dev/disk0s2 it comes back with the same "disk0s2 I/O error." Any ideas about what the hell is going on here? It sounds like my hard drive has failed, but if that were the case, why would it say it is mounted in Disk Utility, and how am I able to look at all of my files? And if my HD did indeed fail (or the SATA cable or logic board for that matter,) how am I able to access the recovery partition? One final clue: the night before this happened, my computer, which was plugged up to a charger, suddenly turned off and my charger hasn't worked since. I got a new one and it works fine. When this happened, there was fan plugged i
List Welcome Guide More BleepingComputer.com → Hardware → Internal Hardware Javascript Disabled Detected You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality. Register a free account to unlock additional features at BleepingComputer.com 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! or read our Welcome Guide to learn how to use this site. URGENT - disk0s2: I/O error. Started by Start , Dec 11 2010 08:51 AM Please log in to reply 2 replies to this topic #1 Start Start Members 20 posts OFFLINE Gender:Male Local time:03:38 PM Posted 11 December 2010 - 08:51 AM Hey guys: I have a friend that has a sick Macbook. His Macbook model is: MacBook (13-inch, Early 2008). 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 waited till the progress bar disappears, but it automatically shuts down after that. I tried to restart normally, but the same thing happened. I tried removing the battery and holding down the power button for 20 to 30 secs, but it did not work. I tried booting into the verbose mode, and "disk0s2: I/O error." appears. Here's a section of the log: Executing fsck_hfs (version diskdev_cmds-491.3~2) ** Checking Journaled HFS Plus volume ** Checking extents overflow file. disk 0s2:I/O error. disk 0s2:I/O error. disk 0s2:I/O error. disk 0s2:I/O error. disk 0s2:I/O error. disk 0s2:I/O error. disk 0s2:I/O error. ** Checking catalog file. ** Checking multi-linked files. ** Checking catalog hierarchy. ** Checking extended attributes file. disk 0s2:I/O error. Invalid node structure (8, 70) ** The volume Macintosh HD could not be verif