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Thread: Unable to boot into Triple Boot system on my laptop.

  1. #21
    Join Date
    Oct 2009
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    176

    Re: Unable to boot into Triple Boot system on my laptop.

    It installed buy says that it has to be run from a terminal. I have to look back and see if you gave me the terminal command for running it. Thanks

  2. #22
    Join Date
    Oct 2009
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    176

    Re: Unable to boot into Triple Boot system on my laptop.

    The fixparts program installed but I don't know how to run it from terminal. It installed with ubunut software package. I get this for a previous command for backing up destination sudo sfdisk -d /dev/sda > parts.txt
    Warning: extended partition does not start at a cylinder boundary.
    DOS and Linux will interpret the contents differently. Don't know how to respond to that. Thanks for your continued patience. I guess I need to do these partition backups first. Thanks for your continued patience.

  3. #23
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    Oct 2009
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    176

    Re: Unable to boot into Triple Boot system on my laptop.

    sometimes I see my replies and sometimes I don't. for sda I get
    ubuntu@ubuntu:~$ sudo sfdisk -d /dev/sda > parts.txt
    Warning: extended partition does not start at a cylinder boundary.
    DOS and Linux will interpret the contents differently.

  4. #24
    Join Date
    Oct 2009
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    176

    Re: Unable to boot into Triple Boot system on my laptop.

    which mbr command number do I select?

    ubuntu@ubuntu:~$ sudo fixparts /dev/sda
    FixParts 0.8.4

    Loading MBR data from /dev/sda

    MBR command (? for help):

    MBR comman? for help): ?
    a toggle the active/boot flag
    c recompute all CHS values
    l set partition as logical
    o omit partition
    p print the MBR partition table
    q quit without saving changes
    r set partition as primary
    s sort MBR partitions
    t change partition type code
    w write the MBR partition table to disk and exit

  5. #25
    Join Date
    Jun 2009
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    Ubuntu 16.04 Xenial Xerus

    Re: Unable to boot into Triple Boot system on my laptop.

    Drives have not used cylinders since they went over 8GB, so you can ignore that error on the start of your extended partition.
    Try p and see what it says. If it looks correct and only if it looks correct you can use w to write the corrected partition table.

    Forum has two servers and sometimes it takes a few minutes before something appears as it has to be sync'd.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  6. #26
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    Oct 2009
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    Re: Unable to boot into Triple Boot system on my laptop.

    FixParts 0.8.4

    Loading MBR data from /dev/sda

    MBR command (? for help): ?
    a toggle the active/boot flag
    c recompute all CHS values
    l set partition as logical
    o omit partition
    p print the MBR partition table
    q quit without saving changes
    r set partition as primary
    s sort MBR partitions
    t change partition type code
    w write the MBR partition table to disk and exit

    MBR command (? for help): p

    ** NOTE: Partition numbers do NOT indicate final primary/logical status,
    ** unlike in most MBR partitioning tools!

    ** Extended partitions are not displayed, but will be generated as required.

    Disk size is 1465149168 sectors (698.6 GiB)
    MBR disk identifier: 0x0990D1D5
    MBR partitions:

    Can Be Can Be
    Number Boot Start Sector End Sector Status Logical Primary Code
    1 * 27650048 27854847 primary Y 0x07
    2 140488424 1348833464 primary Y 0x07
    5 2048 27650047 logical Y Y 0x07
    6 1348835328 1349810175 omitted 0x83
    7 1349812224 1379106815 omitted 0x83
    8 1379108864 1381060607 omitted 0x82
    9 1381062656 1390055423 omitted 0x83
    10 1390059520 1391034367 omitted 0x83
    11 1391036416 1410566143 omitted 0x83
    12 1410568192 1414471679 omitted 0x82
    13 1414473728 1427535871 omitted 0x83
    14 1427537920 1431295999 omitted 0x82
    15 1431298048 1465147391 primary Y 0x83

    This is of no use to me at my level of understanding. Also did not resolve problem regarding backing up partition data to text

  7. #27
    Join Date
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    Ubuntu 16.04 Xenial Xerus

    Re: Unable to boot into Triple Boot system on my laptop.

    This only backs up partition table, so it could be restored if changes make it worse. But it does not backup data.
    sudo sfdisk -d /dev/sda > parts.txt

    If you do not have data backups you should really make an image of the hard drive. Repairs may or may not work.

    I do not know why fixparts shows most of your logical partitions as omitted. I would not write that. If testdisk does not show partition table correctly you may have to manually edit the parts.txt file.

    Do you have any documentation of your partitions before? This would say that sda1 & sda2 are also inside the extended partition. But Windows will not boot from logicals so I assume the issue is really the start of sda3 or the extended partition. Then sda5 becomes a primary - sda3, and the extended is really sda4 and starts after sda2's end. It does not matter that sda3 & sda2 are switched or were they really in a different order?

    I would try testdisk and see what it shows. You may be able to drill deeper and see files.
    http://www.cgsecurity.org/wiki/TestDisk
    repairs including testdisk info & links
    http://members.iinet.net.au/~herman546/p21.html
    https://help.ubuntu.com/community/Da...st%20Partition
    https://help.ubuntu.com/community/DataRecovery

    repairs including testdisk info & link to testdisk, testdisk is in repository and on most repairCDs
    http://members.iinet.net.au/~herman546/p21.html
    http://www.psychocats.net/ubuntucat/...rdeletedfiles/
    download TestDisk http://www.cgsecurity.org/wiki/TestDisk
    As described, it has an option to "Recover NTFS boot sector from its backup"
    If Backup BS isn't available, choose RebuildBS.
    Instructions
    http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step
    http://www.cgsecurity.org/wiki/Menu_Analyse
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  8. #28
    Join Date
    Oct 2009
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    176

    Re: Unable to boot into Triple Boot system on my laptop.

    Quote Originally Posted by oldfred View Post
    This only backs up partition table, so it could be restored if changes make it worse. But it does not backup data.
    sudo sfdisk -d /dev/sda > parts.txt

    If you do not have data backups you should really make an image of the hard drive. Repairs may or may not work.

    I have an image of Windows 7 on a usb hard drive. I had a similar image of Windows 8 on the same drive which I tried at one point to restore using a Windows 8 system restore disk or whatever it's called and I tried to restore it unsuccessfully, so I don't hold up much hope in being able to restore the Windows 7 either. I figure my odds of being able to replace the Windows boot loader are good at this point. After doing that I will have an "unusable" 56gb partition on one side of the Win 7 partition or the other which I won't be able to delete or merge with the main partition, but I'm thinking the Windows should still be usable in that state. Also there is the issue of that I changed the second administrative partition of the Win 7 from primary to logical.

    I do not know why fixparts shows most of your logical partitions as omitted. I would not write that. If testdisk does not show partition table correctly you may have to manually edit the parts.txt file.

    Do you have any documentation of your partitions before?
    The only thing I remember as being messed up was the unallocated 56gb partition next to the Win7 partition which came up as being unusable.
    This would say that sda1 & sda2 are also inside the extended partition. But Windows will not boot from logicals so I assume the issue is really the start of sda3 or the extended partition. Then sda5 becomes a primary - sda3, and the extended is really sda4 and starts after sda2's end. It does not matter that sda3 & sda2 are switched or were they really in a different order?

    I would try testdisk and see what it shows. You may be able to drill deeper and see files.
    http://www.cgsecurity.org/wiki/TestDisk
    repairs including testdisk info & links
    http://members.iinet.net.au/~herman546/p21.html
    https://help.ubuntu.com/community/Da...st%20Partition
    https://help.ubuntu.com/community/DataRecovery

    repairs including testdisk info & link to testdisk, testdisk is in repository and on most repairCDs
    http://members.iinet.net.au/~herman546/p21.html
    http://www.psychocats.net/ubuntucat/...rdeletedfiles/
    download TestDisk http://www.cgsecurity.org/wiki/TestDisk
    As described, it has an option to "Recover NTFS boot sector from its backup"
    If Backup BS isn't available, choose RebuildBS.
    Instructions
    http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step
    http://www.cgsecurity.org/wiki/Menu_Analyse
    Will try Testdisk to see what it shows.

  9. #29
    Join Date
    Oct 2009
    Beans
    176

    Re: Unable to boot into Triple Boot system on my laptop.

    Downloaded testdisk and extracted - don't know how to run or install.

    ubuntu@ubuntu:~$ sudo apt-get install testdisk
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    E: Unable to locate package testdisk
    ubuntu@ubuntu:~$
    Last edited by archp2009; April 12th, 2013 at 04:20 PM.

  10. #30
    Join Date
    Jun 2009
    Location
    SW Forida
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    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Unable to boot into Triple Boot system on my laptop.

    I have always had Universe enabled in my installed systems, so it just works. Maybe live installer does not have Universe enabled.

    enable the "universe" repository to download testdisk
    System>Administration>Software Sources>Ubuntu Software.

    Otherwise download Parted Magic, testdisk is on most repair Linux versions. I often use gparted from parted magic or gparted liveCD anyway.

    http://partedmagic.com/
    http://gparted.sourceforge.net/faq.php
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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