Disk Os2 I/0 Error
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Disk0s2 I/o Error Mac
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Mac Disk1 I/o Error
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 disk0s2 i/o error the volume macintosh hd could not be verified completely Start Start Members 20 posts OFFLINE Gender:Male Local time:03:28 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 verified completely. /dev/rdisk0s2 (hfs) EXITED WITH SIG
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Disk0s2 I/o Error Invalid Node Structure
of this site About Us Learn more about Stack Overflow the company kernel[0]: disk0s2: i/o error. Business Learn more about hiring developers or posting ads with us Ask Different Questions Tags Users Badges Unanswered Ask error 0xe00002ca Question _ Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute: Sign up Here's how it works: http://www.bleepingcomputer.com/forums/t/366395/urgent-disk0s2-io-error/ Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top iMac Startup I/O Error Despite Successful Disk Repair up vote 1 down vote favorite My Early 2008 iMac with OSX 10.8.5 no longer boots beyond grey screen with spinning gear. Verbose mode shows a load of I/O errors. Disk Verify/Repair run via recovery partition http://apple.stackexchange.com/questions/104656/imac-startup-i-o-error-despite-successful-disk-repair completes successfully, as does fsck terminal command in single user startup mode (it modified the files on first run but not second). I reset the NVRAM too. However none of these have helped, same I/O errors afterwards. Thinking it might be due to OS files being corrupted I created a USB drive with installable version of OSX (actually 10.9 Mavericks), but it crashes during install. I wanted to try Apple Hardware Tools diagnostics but the startup shortcuts D or opt+D don't work - I read it's been removed so presumably I'll need to find a way to reinstall it first. I've tried the usual fixes such as safe mode (won't boot), removing all peripherals, even the RAM sticks. I can't hear the drive making any grinding sounds. Is there anything else I can try to fix this? Is it likely the HD has died even though Disk Repair is returning success? hard-drive imac boot startup install share|improve this question asked Oct 8 '13 at 14:46 Ben Wise 335324 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted Disk I/O errors lite
Colin My Macbook (late 2008 Unibody) turned two years old a few days before Christmas. The day after it's birthday (the only reason I know this is because I was checking where it fell in terms of http://balloflightning.com/2010/12/io-error-os-x-hard-drive-failing/ warranty, but AppleCare is only one year, not two from purchase date so this was pretty irrelevant anyways) I started to suffer from a myriad of issues during use. Beachballing. Bouncing programs in the dock. Random freezes in Firefox when browsing. Connection dropouts. The works. I initially thought this was the work of an outdated program failing to play nice with the newest version of Snow Leopard (10.6.5) which I had installed days before. I o error began turning off plugins in Firefox and ditching programs from the startup menu to attempt to cure whatever sickness had taken over my laptop. Every reboot cycle gave me the same problem- the computer would run for about 30 seconds, but then any use and it started beachballing. Finally, it just didn't reboot. The computer hung at the grey screen with the Apple logo and the spinning ball. No peripherals (external hard drive, USB mouse, etc.) disk0s2 i/o error were attached so that was immediately ruled out. To attempt to diagnose the problem, I attempted to boot into safe mode. Not happening. Tried resetting the PRAM and NVRAM. Nada. Finally, the next series of steps allowed me to salvage my hard drive and let my Macbook live to see another day (minus a $700 data recovery charge). Boot into single-user mode (sometimes called verbose mode) (hold down Control-V as soon as the Mac chime sounds after pressing the power button). You should now be in an environment that looks like this: At the command line type: /sbin/fsck -fy and press Return. You will receive messages about the disks use and fragmentation as fsck will now go through five phases of disk utility. If you get: disk0s3: I/O Error then you have a problem with bad sectors on the hard drive. Eventually, fsck will probably tell you: ***** FILE SYSTEM WAS MODIFIED ***** Repeat the fsck process above. Keep repeating the above process until ***** FILE SYSTEM WAS MODIFIED ***** does not appear. Even after this message disappears, repeat one more time. If this message doesn't disappear, and you continue to get disk0s3: I/O Error or similar errors, it might be time to think about punting the hard drive (or visiting a data recovery specialist if you don't have a backup). Type reboot at