Alex.halarides

Q: When installing Yosemite, received error "File system verify or repair failed"

When insalling Yosemite following download, I received an error stating "File system verify or repair failed". I rebooted, held command/R to enter disk utility in order to repair the disk, however the repair failed. Any suggestions?

MacBook Pro, OS X Yosemite (10.10)

Posted on Oct 16, 2014 7:25 PM

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Q: When installing Yosemite, received error "File system verify or repair failed"

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  • by William Kucharski,

    William Kucharski William Kucharski Oct 16, 2014 10:28 PM in response to Alex.halarides
    Level 6 (15,068 points)
    Mac OS X
    Oct 16, 2014 10:28 PM in response to Alex.halarides

    You'll have to determine whether you have a bad hard drive or if your disk just became corrupted somehow.

     

    If the latter, your best bet is to reformat your drive and restore from your last backup.

     

    If the former, you'll need a new hard drive.

  • by toddnnc,

    toddnnc toddnnc Oct 16, 2014 10:57 PM in response to William Kucharski
    Level 1 (0 points)
    Oct 16, 2014 10:57 PM in response to William Kucharski

    EEverything working fine for me until I was going through install of Yosemite and get that same message

     

    os x could not be installed on your computer

    file system verify or repair failed

    quit the installer to restart your computer and try again

     

     

     

     

     

    i do all this and it restarts, looks like installing and boom this message pops up over and over and over

     

     

    can I get back to mavericks now somehow?   I'm green, first Mac, 27 inch had less than two years

  • by TURANSU,

    TURANSU TURANSU Oct 17, 2014 1:11 AM in response to toddnnc
    Level 1 (0 points)
    Oct 17, 2014 1:11 AM in response to toddnnc

    same here..

    when trying to repair the disk in disk utilities, he cant do that, and say again : try to repair ...

    on mavericks with mac mini late 2012..

  • by TURANSU,

    TURANSU TURANSU Oct 17, 2014 1:38 AM in response to TURANSU
    Level 1 (0 points)
    Oct 17, 2014 1:38 AM in response to TURANSU

    i was able to  reboot on mavericks when quit the Yosemite updater.  ....

    (sorry for my english)

    Now i back up my files...

    after that, i will try to reboot , cmd+R and repair my hard drive with "mavericks disk repair tool" if available...

    now i can see error on my disk when i launch disk utilities... but he was not unable to repair with the "Yosemite disk utilities" so i will try with "mavericks session " to see what will happend...

  • by William Kucharski,Helpful

    William Kucharski William Kucharski Oct 17, 2014 5:04 AM in response to Alex.halarides
    Level 6 (15,068 points)
    Mac OS X
    Oct 17, 2014 5:04 AM in response to Alex.halarides

    The issue is that Apple has added a basic disk check to the Yosemite install process.

     

    If it finds a disk issue that cannot be repaired it will refuse to install Yosemite rather than just blindly install it onto a disk with issues.

     

    If the installer reports issues they were preexisting and must be corrected before you can upgrade.

  • by SpyderVenom,

    SpyderVenom SpyderVenom Oct 17, 2014 5:42 AM in response to William Kucharski
    Level 1 (4 points)
    Mac OS X
    Oct 17, 2014 5:42 AM in response to William Kucharski

    So how do you go back to Mavericks and fix those issues so you can go back in and install Yosemite?

  • by Alex.halarides,

    Alex.halarides Alex.halarides Oct 17, 2014 7:59 AM in response to William Kucharski
    Level 1 (1 points)
    Oct 17, 2014 7:59 AM in response to William Kucharski

    William, do you know of any way to bypass this? Or is my best bet to bring it into the Genius Bar?

     

    Also, do you know of a way to retrieve files on my hard drive that haven't been backed up at this stage? Say, just my iTunes library?

     

    Thanks.

  • by Alex.halarides,

    Alex.halarides Alex.halarides Oct 17, 2014 8:53 AM in response to William Kucharski
    Level 1 (1 points)
    Oct 17, 2014 8:53 AM in response to William Kucharski

    Would I be able to create a partition (Still have 500GB/750GB available), reformat the partition if need be, install Yosemite onto the new partition, and retrieve the files needed from the original 250GB?

  • by Ayman.alkhalil,

    Ayman.alkhalil Ayman.alkhalil Oct 17, 2014 2:23 PM in response to Alex.halarides
    Level 1 (0 points)
    Oct 17, 2014 2:23 PM in response to Alex.halarides

    I Have the same issue here, some posts suggest that there is no enough space on the hard drive. However, I'm trying to get back to my hd disk to boot to my dssktop, unfortunately I couldnt, now I need only to know how to eject the installing drive and reboot using my old drive.

    also I tried to do something useful with terminal that provided in recovery mode, but also I'm not good in this too.

     

    dont know what to do

  • by Tumnoonc,

    Tumnoonc Tumnoonc Oct 17, 2014 11:08 PM in response to Ayman.alkhalil
    Level 1 (0 points)
    Oct 17, 2014 11:08 PM in response to Ayman.alkhalil

    ssame issue here. Glad I.m not the first.

  • by dschmunis,

    dschmunis dschmunis Oct 18, 2014 12:33 AM in response to Alex.halarides
    Level 1 (0 points)
    Oct 18, 2014 12:33 AM in response to Alex.halarides

    Had the same problem on a MBP 17 (early 2009).

     

    Long story short. I used the ORIGINAL installer CD to boot to Disk Utility and REPAIR Permissions an Disk. Had to reboot several times (holding C down) until the HD was recognized and Disk Utility allowed me to "repair" it (REPAIR was disabled previously).

     

    Once I was able to REPAIR the disk I rebooted normally and was able to log in back into Maverick. Now doing one more BACKUP before attempting to install Yosemite again.

     

    Useful link: http://african-heart.blogspot.com/2010/07/fixing-invalid-node-structure-in-mac.h tml?showComment=1365269696276#c4328371437324677074

  • by DKVikram,

    DKVikram DKVikram Oct 18, 2014 1:50 AM in response to Alex.halarides
    Level 1 (0 points)
    Oct 18, 2014 1:50 AM in response to Alex.halarides

    I am facing the same issue. When installing Yosemite Getting the error ""File system verify or repair failed". I have a macbook pro late 2009. What should i do before i attempt to reinstall yosemite?

  • by marc123,

    marc123 marc123 Oct 18, 2014 6:17 AM in response to dschmunis
    Level 1 (0 points)
    Oct 18, 2014 6:17 AM in response to dschmunis

    I'm having the same issue on an early 2011 MBP

    Tried to install Yosemite, failed to verify or repair disk

    reboot in command R mode. Brings up disk utility

    says something about file system error 8 when I check the disk

    the disk contains 2 partitions the os x base and an os x esd install disk

    both individually pass the disk utility verify - but the physical disk containing them does not

    everything worked fine under mavericks

     

    this is is a huge time suck. I use macs because they "just work"

    now im going to spend hours restoring

     

    this is on top of iOS 8.0.1 which hosed my phone a couple weeks ago

    If anyone has a better solution than restoring - please let me know

  • by achint97,

    achint97 achint97 Oct 18, 2014 11:25 AM in response to Alex.halarides
    Level 1 (0 points)
    Oct 18, 2014 11:25 AM in response to Alex.halarides

    I Have the same exact problem. Disk utility is not helping. same thing after every restart.

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