Catalog bitmap error

Discussion in 'Programming' started by Rockman53, Nov 22, 2015.

  1. Rockman53

    Rockman53 New Member

    Jan 19, 2015
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    I was interested in finding out if anyone knew a little about read/write errors? I tried to verify my drive and I received this message "Verify Failed". I bought DiscWarrior to try to cure this message, DiscWarrior did its routine and I still receive the same message. Attched are the two screens that show the Verify Failed block number and the block location. Any help?

    Attached Files:

    Rockman53, Nov 22, 2015
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  2. Rockman53

    Cory Cooper Moderator

    May 19, 2004
    Likes Received:
    Hello and welcome.

    That could be a bad block, or two files have actually attempted to write to the same location on the hard drive. It also could be an error in the disk header/catalog.

    -Which model Mac?
    -Apple or third-party drive?
    -Which version of OS X?
    -Which version of DiskWarrior?
    -How os the drive partitioned and formatted - GUID and Mac OS Extended (Journaled)?
    -Do you have a utility such as Drive Genius or Techtool Pro that can perform a full surface scan of the drive?
    -Do you have a current Time Machine brother back of the data on that drive?

    If it is a catalog error that DiskWarrior cannot repair, normally it requires that you move all the data off the drive, reformat, then move the data back.

    Cory Cooper, Nov 23, 2015
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