gdisk errors reported

2011-12-01
2013-05-28
  • Conrad Yoder
    Conrad Yoder
    2011-12-01

    Well, it seems this forum may be abandoned (nothing new in 2 years?), but I will post here anyways and see what happens.

    I have a MacBook Pro, running OS X 10.6 with, of course, a GPT Disk. The OS X Disk Utility reports no problems with the drive, but when I try to repartition the drive, Disk Utility does not allow me to resize partitions. When I try to use the OS X command-line tool, I get the error, "Error: -9939: The partition cannot be resized."

    So I downloaded GPT fdisk and ran gdisk. Upon starting it, I get the messages:

    GPT fdisk (gdisk) version 0.8.1

    Type device filename, or press <Enter> to exit: /dev/disk0
    Warning! Main and backup partition tables differ! Use the 'c' and 'e' options
    on the recovery & transformation menu to examine the two tables.

    Warning! One or more CRCs don't match. You should repair the disk!

    Partition table scan:
      MBR: hybrid
      BSD: not present
      APM: not present
      GPT: damaged

    Found valid MBR and corrupt GPT. Which do you want to use? (Using the
    GPT MAY permit recovery of GPT data.)
    1 - MBR
    2 - GPT
    3 - Create blank GPT

    Your answer:

    And I'm not sure what the next best step here is. Any suggestions? Let me know if you would like more info.