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Thread: UEFI help

  1. #11
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    Mar 2013
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    Re: UEFI help

    i don't have secure boot option..

    and i can't load directly

  2. #12
    Join Date
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    Chicago Suburbs
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    Ubuntu 12.04 Precise Pangolin

    Re: UEFI help

    If you are sure you do not have secure boot - It is only on new systems with Windows 8 pre-installed, then from Boot-Repair uncheck the secure boot tick and rerun the rename files. That should change names back to defaults.

    Boot-Repair - Updated Jan 1, 2013 to not rename first time, but rename if first time Windows does not boot. Post 706 and 711
    http://ubuntuforums.org/showthread.p...769482&page=71
    Boot-Repair copied /EFI/ubuntu/grubx64.efi to /EFI/Boot/bootx64.efi (in case the BIOS is hard-coded to boot into /EFI/Boot/bootx64.efi or secure boot
    signed GRUB file shimx64.efi.
    I disabled secure boot, and unchecked it in boot-repair. It now bypasses Grub and goes straight in to Windows.
    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. #13
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    Mar 2013
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    Re: UEFI help

    Done this,

    now the errors are:

    "error: no such device: 38D2-86AD.
    error: file 'EFI/Boot/bkpbootx64.efi' not found."

    http://paste.ubuntu.com/5604853/

    PS: Mint still loads ok

  4. #14
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    Ubuntu 12.04 Precise Pangolin

    Re: UEFI help

    That is the correct partition. gpt partitions look ok, but you have the error on the protective MBR. gpt has a protective MBR which is just the first sector on the drive like standard MBR(msdos) partitioning. It exists only so old disk tools see the drive is fully partitioned with gpt.

    Not sure if gdisk will update protective MBR or not.

    sudo apt-get gdisk

    run it and issue the w command to write partition table. Since it will see gpt part as ok, I am not sure it will update MBR.
    For more info on using gdisk.
    GPT fdisk Tutorial
    http://ubuntuforums.org/showthread.php?t=1439794
    http://www.rodsbooks.com/gdisk/

    repair gpt:
    http://www.rodsbooks.com/gdisk/repairing.html
    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. #15
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    Mar 2013
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    Re: UEFI help

    Am I doing something wrong?

    ubuntu@ubuntu:~$ sudo gdisk /dev/sda1
    GPT fdisk (gdisk) version 0.8.6

    Partition table scan:
    MBR: MBR only
    BSD: not present
    APM: not present
    GPT: not present


    ************************************************** *************
    Found invalid GPT and valid MBR; converting MBR to GPT format.
    THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by typing 'q' if
    you don't want to convert your MBR partitions to GPT format!
    ************************************************** *************

    Exact type match not found for type code 7200; assigning type code for
    'Linux filesystem'
    Entering GPTPart::SetName(const UnicodeString...)
    Exact type match not found for type code 6500; assigning type code for
    'Linux filesystem'
    Entering GPTPart::SetName(const UnicodeString...)
    Exact type match not found for type code 7900; assigning type code for
    'Linux filesystem'
    Entering GPTPart::SetName(const UnicodeString...)
    Exact type match not found for type code 0D00; assigning type code for
    'Linux filesystem'
    Entering GPTPart::SetName(const UnicodeString...)

    Warning! Secondary partition table overlaps the last partition by
    3805500090 blocks!
    You will need to delete this partition or resize it in another utility.

    Command (? for help): w

    Warning! Secondary partition table overlaps the last partition by
    3805500090 blocks!
    You will need to delete this partition or resize it in another utility.

    Problem: partitions 2 and 1 overlap:
    Partition 2: 168689522 to 2104717761
    Partition 1: 778135908 to 1919645538

    Problem: partitions 3 and 1 overlap:
    Partition 3: 1869881465 to 3805909656
    Partition 1: 778135908 to 1919645538

    Problem: partitions 3 and 2 overlap:
    Partition 3: 1869881465 to 3805909656
    Partition 2: 168689522 to 2104717761

    Problem: partitions 4 and 3 overlap:
    Partition 4: 2885681152 to 2885736650
    Partition 3: 1869881465 to 3805909656
    Aborting write operation!
    Aborting write of new partition table.

    Command (? for help): p
    Disk /dev/sda1: 409600 sectors, 200.0 MiB
    Logical sector size: 512 bytes
    Disk identifier (GUID): 93E03241-A2FC-49DF-BFAC-13108AED30E0
    Partition table holds up to 128 entries
    First usable sector is 34, last usable sector is 409566
    Partitions will be aligned on 1-sector boundaries
    Total free space is 409533 sectors (200.0 MiB)

    Number Start (sector) End (sector) Size Code Name
    1 778135908 1919645538 544.3 GiB 8300 Linux filesystem
    2 168689522 2104717761 923.2 GiB 8300 Linux filesystem
    3 1869881465 3805909656 923.2 GiB 8300 Linux filesystem
    4 2885681152 2885736650 27.1 MiB 8300 Linux filesystem

    Command (? for help):

  6. #16
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    Chicago Suburbs
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    Re: UEFI help

    I hope you pressed q. As nothing in new gpt table looks correct. Did you use sda1 not sda. You have to use drive not a partition, and that may be entire error?

    According to BootInfo gpt table looked ok, it was just the MBR table that had issues. And we definitely do not want MBR converted into a new incorrect gpt table.

    What does parted and gparted say?

    sudo parted /dev/sda unit s print
    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.




  7. #17
    Join Date
    Mar 2013
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    20

    Re: UEFI help

    Yeah, I did press Q.
    I used /dev/sda1. (I'll try to use sda now.)

    sudo parted /dev/sda unit s print
    Model: ATA ST1000LM024 HN-M (scsi)
    Disk /dev/sda: 1953525168s
    Sector size (logical/physical): 512B/4096B
    Partition Table: gpt


    Number Start End Size File system Name Flags
    1 2048s 411647s 409600s fat32 EFI system partition boot
    2 411648s 673791s 262144s Microsoft reserved partition msftres
    3 673792s 782084095s 781410304s ntfs Basic data partition
    4 782084096s 1902323711s 1120239616s ntfs Basic data partition
    5 1902325760s 1953524129s 51198370s ntfs Basic data partition

  8. #18
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    Re: UEFI help

    Parted looks ok, what does gdisk now say with sda?
    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.




  9. #19
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    Mar 2013
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    Re: UEFI help

    ubuntu@ubuntu:~$ sudo gdisk /dev/sda
    GPT fdisk (gdisk) version 0.8.6

    Partition table scan:
    MBR: protective
    BSD: not present
    APM: not present
    GPT: present

    Found valid GPT with protective MBR; using GPT.

    Should I W now?

  10. #20
    Join Date
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    Re: UEFI help

    Yes, since it seems to see it correctly. Not sure still if it will update protective MBR.
    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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