Mac Verbose Mode I/o Error
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Please enter a title. You can not post a blank message. Please type your message and try again. TS2570: Mac OS X: Gray screen appears during startup Learn about Mac OS X: Gray screen appears during startup dean14 Level 1 (1 points) Q: disk0s2: i/o disk0s2 i/o error macbook pro error iMac would not boot up past Grey Apple screen on repeated attempts. tried to reboot disk0s2 i/o error fix in safe mode with tracking on and after several lines of boot up code it stopped and I get a reparated disk0s2: I/O error.
What Is Disk0s2
message.What does this mean? Posted on Jan 12, 2013 3:28 PM I have this question too Close Q: disk0s2: i/o error All replies Helpful answers by vea1083, vea1083 Jan 12, 2013 7:24 PM in response to dean14 Level 3
Mac Disk1 I/o Error
(696 points) Jan 12, 2013 7:24 PM in response to dean14 dean14 wrote:iMac would not boot up past Grey Apple screen on repeated attempts. tried to reboot in safe mode with tracking on and after several lines of boot up code it stopped and I get a reparated disk0s2: I/O error. message.What does this mean?I would suggest you to see the following Apple Support Article:http://support.apple.com/kb/TS1417Best! Helpful (1) Reply options Link to this post by dean14, dean14 Jan 12, disk0s2 i/o error invalid node structure 2013 8:12 PM in response to vea1083 Level 1 (1 points) Jan 12, 2013 8:12 PM in response to vea1083 Thanks for the suggestion. I ran the fsck check and if did not finish. It stopped in the ** Rebuilding catalog B-tree section. Kept repeating disk0s2: I/O error. Helpful (0) Reply options Link to this post by Samurai2k, Samurai2k May 10, 2013 6:55 AM in response to dean14 Level 1 (0 points) May 10, 2013 6:55 AM in response to dean14 kernel[0]: disk0s2: I/O error.My iMac starts up slow and often stops working during the day after these errors. I run the Disk Utility frequently and it never finds any errors, but it is only a bandaid. How do I fix the issue ?My iMac 24-inch, Early 2008Processor 3.06 GHz Intel Core 2 DuoMemory 4 GB 800 MHz DDR2 SDRAMI can not add anymore physical ramGraphics NVIDIA GeForce 8800 GS 512 MBSoftware OS X 10.8.3 (12D78)kernel[0]: disk0s2: I/O error. Helpful (0) Reply options Link to this post by WZZZ, WZZZ May 10, 2013 7:00 AM in response to Samurai2k Level 6 (13,112 points) Mac OS X May 10, 2013 7:00 AM in response to Samurai2k The I/O error and the other symptoms strongly suggests the drive is failing. First thing is to make a backup immediately.After that test with the free demo of SMART Utility.http://www.volitans-software.com/smart_utility.php Helpful (0) Reply options Link to this post Th
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Disk0s2 I/o Error The Volume Macintosh Hd Could Not Be Verified Completely
and policies of this site About Us Learn more about Stack Overflow disk0s2 i/o error the volume could not be verified completely the company Business Learn more about hiring developers or posting ads with us Ask Different Questions Tags Users diskos2 io error mac Badges Unanswered Ask 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 https://discussions.apple.com/thread/4700518?tstart=0 how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Yosemite freeze at boot - no safe boot + I/O error up vote 0 down vote favorite 1 Yesterday everything was fine but today my macbook freeze/stuck during the boot. I've done this: check + repair permission (nothing changed) http://apple.stackexchange.com/questions/161534/yosemite-freeze-at-boot-no-safe-boot-i-o-error check + repair disk (nothing changed) tried safemode (doesn't boot) resetting pram with cmd+opt+p+r (nothing changed) boot in verbose mode, shift+cmd+v and after "waiting for DSMOS" appear disk0s2: I/O error. (now 6 times, but it will continue I think ) tried to use fsck in single user mode and it says that the disk is ok tried to reinstall the OS (nothing changed ) Any idea how to solve it? yosemite boot disk-utility hang startup share|improve this question edited Dec 12 '14 at 15:01 klanomath 25k42865 asked Dec 12 '14 at 14:07 dborghez 614 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote I/O problems are a good indicator that your drive is past its best. Replace the drive or do the following... Back up everything of value via Target Disk Mode (if possible) then boot your MacBook from a USB or DVD installer. Run Disk Utility, selecting the secure erase/zero fill option and wipe your drive. This will issue an ATA secure erase command that will fill every allocation block with a zero, automatically
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 http://www.mac-forums.com/showthread.php?t=315714 forum that you want to visit from the selection below. Welcome to Mac-Forums! Join us to comment and to customize your site experience! Members have access to different forum appearance options, and many more functions. Results 1 to 9 http://balloflightning.com/2010/12/io-error-os-x-hard-drive-failing/ 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 i/o error hard drive? I/O error, stuck on grey screen Mid 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. disk0s2 i/o error First of all, Disk Utility cannot repair Macintosh HD, and trying to make 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
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 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 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.) 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 the prompt.