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Mismatched GPT and MBR Partition /dev/sdd

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2015-08-23
2015-09-23
  • Scott Milford

    Scott Milford - 2015-08-23

    I've seen a lot of discussion about this subject but I never see anything that includes "/dev/sdd"

    Now, I'm a complete newb with a lot of this technical lingo and often don't understand the difference between what I'm supposed to type and what appears on the screen in many examples I've seen. I only know that nothing has ever worked out as shown in any examples I've seen so far. So I'll explain my situation and hopefully, I can get past it with a little help. :-)

    I have an 80GB SSD drive that I want to clone to a larger standard drive so I can free up my SSD to migrate my OS (Windows 7) to the SSD. When I try to clone the drive using the Clonezilla Live CD I made, I get an error message.

    "This disk contains mismatched GPT and MBR partition: /dev/sdd
    It will confuse Clonezilla and might make the saved image useless or fail to clone the disk."

    Then it goes on to explain that I can use gdisk or sgdisk to fix the issue.

    "You can use gdisk or sgdisk to fix this issue. E.g. if you aresure only MBR partition table is the one you want, you can run this command to destroy the GPT partition table while keep the MBR partition table:
    sudo sgdisk -z /dev/sdx"

    I don't know what "sudo sgdisk -z /dev/sdx" is, but I tried typing that in the command line and I got an error every time I tried. Error 2 and I think once I got another error number.

    Anyway, I don't understand any of this from a step-by-step, beginner's mind perspective. So how can I resolve this issue and clone my SSD without wiping out everything that's on my drive?

    Sorry if I'm being a pain. It's hard being a complete newb when you're not understanding what's probably simple to most of you. So any help will be appreciated. Thanks.

     
  • Steven Shiau

    Steven Shiau - 2015-09-23

    Sorry for the late reponse. I wish more people can reply you on this forum.
    Anyway, I suggest you find some experienced people to help you. sgdisk command could clean the GPT table for you. However, if you issue the wrong one, it will destroy all the data on the disk. Therefore backup important data first, then find some expert to help you about this.

    Steven.

     

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