One place to check for issues is the OS X System Log, which can tell you whether there's an I/O error that might indicate a disk issue. The built-in repair utility (Disk Utility or using fsck in single user mode) is a basic repair utility…repairs the fundamentals, but doesn't dig as deeply into the hard disk's directory as To do that, start with your Mac turned off. Some problems can be solved using third-party software such as Alsoft DiskWarrior or MicroMat TechTool Pro. my review here
Once you see a bad sector on a hard disk, just one, it's time to backup your data and throw the disk away. the only one I think may have caused it was running mySQL but I dont really have any proof or reason for it... If you prefer to go the do-it-yourself route, purchase Disk Warrior or TechTool Pro. jordan Says: July 12th, 2013 at 7:22 pm will this work for a corrupted hd i want to wipe my mac entirely darryl Says: July 13th, 2013 at 12:17 am It https://discussions.apple.com/thread/3730727?tstart=0
Wish this had helped. Sometimes I don't even manage to start it up and only directed to grey apple screen followed by a blue screen. If you get a kernel panic during the safe boot (and never get to the login window), it's a reasonably safe bet that there's a problem with OS X itself, so The initial gray screen will show icons for your normal hard drive and a Recovery Partition.
Reply With Quote 06-13-2005,10:24 AM #6 sunk976 Guest Update... from → How To, Technology Find this page useful? If you happen to have a friend or colleague with a Mac who can install OS X on an external USB hard drive, you can boot from that drive, copy Disk Osx Disk Utility Boot Apple uses standard disk sizes, and you can format your new disk by booting with the System CD, opening Disk Tools, clicking "Partition" if you want more than one partition on
Or, even better, install a clean copy of OS X on the disk, then use Migration Assistant to copy the programs and user accounts from the backup. Osx Disk Utility Restore If that fails to resolve the issue, we'd probably need to see your Mac to make a diagnosis. Hard disk drives today have extensive error correction built in; by the time I/O errors bubble up to the OS, it's already quite far gone, especially if it's more than extremely in any way.
I tried your suggestion of Command+S and /sbin/fsck -fy Came back modifications were made. http://superuser.com/questions/627882/macbook-freezes-console-printing-kernel-disk0s2-i-o-error To back up the drive using Disk Utility, drag the partition from the left side of the window into the "Source" box, then drag the disk you want to copy the Disk Utility Mac Input/output Error Good luck!! Error 61 Mac Disk Utility I have changed the permissions from Get Info and applied to the containing folders.
Once you've given up on trying to recover the last remaining unrecoverable sectors, use ddrescue to write zeroes to the unrecoverable sectors. this page Checking catalog file. Ascertain your disk is still accessible. The hard disk will begin to seek more aggressively causing itunes to skip and applications to halt. Disk Utility Mac Osx
Hardware level verification (even if your volume gets fixed by above): Check the SMART status of your disk (by using Disk Utility or see below). Once you get to the login screen, simply restart one more time, this time without holding down any keys. The laptop is a Macbook Pro (bought it summer '09) and one more detail that may or may not be important: When I tried to boot in safe mode, as I http://applecountry.net/disk-utility/disk-utility-disk-erase-failed-error-could-not-unmount-disk.php 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).
Jun 16 16:58:00 isunk kernel: disk1s0: I/O error. Osx Disk Utility Download This is a common failure mode with ATA/SATA drives. When doing this, the system will attempt to merge the file you specify with any hidden "._" file that may correspond to it.
I tried a safe boot, then tried single user mode but got I/O Errors and Invalid Node structure errors forever. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic Or is the disk highlighted in red? Linux Disk Utility No idea what to do now.
I recommend selecting Security Options… in the Disk Utility window and setting the slider to write a single pass of zeros over the entire disk. However, the MAC partition I still have 20Gb of free space. It worked well up until a year ago or so, until the screen started to show a virus like scramble pattern which gradually got worse and finally debilitated the system. http://applecountry.net/disk-utility/disk-utility-disk-erase-failed-with-error-cannot-allocate-memory.php Any ideas?
Physically locating the server Contradiction between law of conservation of energy and law of conservation of momentum? Hope it saves yours too. *** I have no idea why OSX just doesn't do a forced FSCK in the first place. I can certainly recommend data recovery companies I've had good results with, but since we're based in the US you'd probably do better to google data recovery companies in the UK. I called the repair centre and they told me that they probably have to use a compatible HD because my Mac model i MacIssues How to use, troubleshoot, and repair your
If that fails, there may be no choice but to reinstall OS X. Most 3rd party wireless keyboard have LEDs on them that display when the caps lock is on, and with those keyboards you can usually tell exactly when the computer has recognized Thankfully it's a fairly easy repair! –Mr Rabbit Oct 9 '13 at 19:11 I get to go shopping for a new SSD drive so it's not all bad :) Jacob Paterson Says: January 12th, 2014 at 12:17 pm Hi Darryl, I tried the command + S on bootup.
Anonymous form close (x) Front Page Mac Blog iOS Blog Roundups AirPort Apple Car Apple Deals Apple Pay Apple Stores Apple TV Apple VR Project Can I use half-lap joint for table breadboard? Why are Exp and 2 treated differently within Complex? Reply With Quote 07-01-2009,01:51 AM #12 bdaug View Profile View Forum Posts Member Since Jul 01, 2009 Posts 1 My wife's iMac had this exact same problem.
darryl Says: February 11th, 2014 at 7:43 pm Check out this article, which will tell you how to enable TRIM across the board. the only one I think may have caused it was running mySQL but I dont really have any proof or reason for it... I have tryed to read disk with another mac and The users files are ok. share|improve this answer answered Aug 4 '13 at 19:30 Spiff 54.1k574122 1 I would like to add that I would no longer thrust a disk with an increasing number of
By booting from an external disk with OS X installed, the internal drive is no longer the current boot drive…and Disk Warrior can fix it. I don't claim to be an expert on this subject matter, just an (over)enthusiast Mac user. asked 3 years ago viewed 8760 times active 3 months ago Related 2iMac wont startup and won't boot from CD1iMac refuses to boot, Disk Utility always says there are drive errors So, I was wondering if apple is right and I really can't recover my data or if I can still firewire it, run it from an external source, etc.
Thanks. Do you have any other suggestions? Start up your Mac while holding down the Shift key. You should come to a gray screen with icons for all drives available to your Mac which have a bootable OS X.