[Bug 945433] Re: Incorrect GPT length should be handled better

[Phillip Susi]

Looks like that Host Protected Area feature again... your drive has been
configured to lie about its size and claim it is slightly smaller than
it really is.  The MBR contains the smaller size, but the GPT contains
the larger size.  It is possible that the HPA was added after you
created the GPT, and some partition tool updated the MBR to the new,
smaller size, but not the GPT.

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https://bugs.launchpad.net/bugs/945433

Title:
  Incorrect GPT length should be handled better

Status in “gdisk” package in Ubuntu:
  New
Status in “parted” package in Ubuntu:
  Triaged

Bug description:
  The GPT LastUsableLba claims the disk is longer than it actually is.
  Parted should handle this error more gracefully and allow for
  repairing it.  gdisk seems to let the error go undetected, possibly
  because it is using the size in the protective MBR rather than
  LastUsableLba.

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