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Thread: Windows install error - unrecognized partition style

  1. #21
    Join Date
    Mar 2011
    Location
    Vellore, India
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    27
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Windows install error - unrecognized partition style

    Hello oldfred

    I reinstalled the grub and now I am able to boot into ubuntu. But there is one more problem. The windows still doesn't recognize the partition type. I have attached the screenshot when I open up 'Disk Utility'.

    It shows EFI (FAT-12/16/32) (0xef) as the partition type. When I change it to HPFS/NTFS (0x07), then it shows the following error (screenshot attached).

    Now what to do?

    Thanks
    Attached Images Attached Images

  2. #22
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Windows install error - unrecognized partition style

    The efi is legitimate only for a 100 to 200MB efi boot FAT32 partition. Usually in gpt.

    Backup partition table to text file & save to external device.
    sudo sfdisk -d /dev/sda > PTsda.txt

    copy & paste PTsda.txt to here.

    Is it sda3?

    sudo sfdisk --print-id /dev/sda 3

    Then you can change sda3 to type 83

    sudo sfdisk --change-id /dev/sda 3 83
    Oldfred on vacation. Back Sept 9. Will not have much if any Internet access.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #23
    Join Date
    Mar 2011
    Location
    Vellore, India
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    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Windows install error - unrecognized partition style

    id 83 corresponds to linux. linux is installed in sda1. so I should also change it for sda1?

    btw, I want to install windows to sda3. So, should I change the id to 83 (linux) or 07 (NTFS) ??

  4. #24
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Ubuntu 14.04 Trusty Tahr

    Re: Windows install error - unrecognized partition style

    OOPS, if sda3 is NTFS then you are correct it should be 7.

    sudo sfdisk --change-id /dev/sda 3 7
    Oldfred on vacation. Back Sept 9. Will not have much if any Internet access.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  5. #25
    Join Date
    Mar 2011
    Location
    Vellore, India
    Beans
    27
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Windows install error - unrecognized partition style

    Thank You oldfred! Thanks a lot! You are great! That did it

    I owe you one!

  6. #26
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Windows install error - unrecognized partition style

    Glad you got it working.
    Oldfred on vacation. Back Sept 9. Will not have much if any Internet access.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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