Scotch_Brawth

Q: Repairing Boot Camp after creating new partition

I'm running OS X 10.8 and Windows 7 x64 Pro.

 

After properly setting up Boot Camp to dual-boot Windows on my Mac mini, I decided to test whether or not it was true that creating another partition (a data partition for OS X) would interfere with Boot Camp.  Wikipedia claims it does interfere but without citing a source, whilst the Boot Camp documentation itself only specifies that the disk must be a single partition _prior_ to setup - there's no mention of whether the disk must be _kept_ that way afterwards.

 

I opened Disk Utility, reduced the size of my OS X parition from 420GB to 80GB, and created a new partition in the unallocated space.  Here's how it looks now:

/___sbsstatic___/migration-images/190/19047693-1.png

When I attempted to proceed with the process, I did receive a warning that doing this (and I quote), "may" cause problems with Boot Camp.  Seeing as it was inconclusive, I thought I'd give it a shot - nothing ventured…

 

Of course, it borked Boot Camp, otherwise I wouldn't be posting here.  Whilst OS X boots just fine, the Boot Camp partition now no longer shows up in the Startup Manager, though it does in the Startup Disk prefPane.  If I do attempt to boot into Boot Camp, I receive the following message on a black screen:

No bootable device --- insert boot disk and press any key

The advice given to someone who had this same problem was, "fix your damaged Boot Camp volume."  But I'm at a loss as to how to do that.

 

So, anyone know how to proceed now so that I can keep my partitions as is, whilst fully restoring normal Boot Camp functionality?

Mac mini (Mid 2011), Mac OS X (10.7.4)

Posted on Jul 26, 2012 11:28 PM

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Q: Repairing Boot Camp after creating new partition

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  • by Loner T,

    Loner T Loner T Nov 28, 2013 2:55 PM in response to saarhotboy
    Level 7 (24,601 points)
    Safari
    Nov 28, 2013 2:55 PM in response to saarhotboy

    Does the command bootrec /scanos in Repair console show any Windows installations?

  • by saarhotboy,

    saarhotboy saarhotboy Nov 28, 2013 3:26 PM in response to Loner T
    Level 1 (0 points)
    Nov 28, 2013 3:26 PM in response to Loner T

    No, this command shows nothing. But in the first steps of repairing win7 which there is a list of installed wins, I can see my win with (recoverd) in parantheses.

    Another thing, as I said before, I can see my windows partition and its contents in the Finder but in the utility disk when I choose my windows partition and click on verify disk, a red error message apears and can't verify it!

  • by Loner T,

    Loner T Loner T Nov 28, 2013 3:45 PM in response to saarhotboy
    Level 7 (24,601 points)
    Safari
    Nov 28, 2013 3:45 PM in response to saarhotboy

    Do you have any third-party NTFS software installed?

  • by saarhotboy,

    saarhotboy saarhotboy Nov 28, 2013 4:46 PM in response to Loner T
    Level 1 (0 points)
    Nov 28, 2013 4:46 PM in response to Loner T

    I'm not sure about ur question. I had Acronis in my win7 and I used it to resize my partition and make a new partition.

  • by Loner T,

    Loner T Loner T Nov 28, 2013 6:42 PM in response to saarhotboy
    Level 7 (24,601 points)
    Safari
    Nov 28, 2013 6:42 PM in response to saarhotboy

    I am referring to a third-party NTFS driver like Tuxera or Paragon, which allows read-write access to BOOTCAMP volume.

     

    Can you post the error message that you get from disk utility and/or a screen shot of your disk utility window?

  • by saarhotboy,

    saarhotboy saarhotboy Nov 29, 2013 3:49 AM in response to Loner T
    Level 1 (0 points)
    Nov 29, 2013 3:49 AM in response to Loner T

    Aha, no there isn't any third party ntfs driver. the mac os x and finder itself recognize the windows partition and has read only access to it.

     

    The error that disk utility give is : "Verify Volume failed: Invalid Request." in red

  • by Svift,

    Svift Svift Nov 29, 2013 4:19 AM in response to Scotch_Brawth
    Level 1 (0 points)
    Nov 29, 2013 4:19 AM in response to Scotch_Brawth

    Hi all of my attempts are ending command not found. Iam writing to terminal in  Utility OS X as this is only thing that boots.

     

    Afte Mavericks upgrade, Bootcam and OSX wont boot. Timemachine - no enough space to continue (I have 450GB free) Shows up 0...

     

    Please help.

  • by Loner T,

    Loner T Loner T Nov 29, 2013 7:05 AM in response to Svift
    Level 7 (24,601 points)
    Safari
    Nov 29, 2013 7:05 AM in response to Svift

    On Page 61, saarhotboy has three sudo commands and their output. Can you provide output of the same commands?

  • by Loner T,

    Loner T Loner T Nov 29, 2013 7:17 AM in response to saarhotboy
    Level 7 (24,601 points)
    Safari
    Nov 29, 2013 7:17 AM in response to saarhotboy

    Are you allowed a "Windows Repair", which is successful? Bootmgr missing/corrupted is a possibility.

     

    http://support.microsoft.com/kb/927392

  • by saarhotboy,

    saarhotboy saarhotboy Nov 29, 2013 9:41 AM in response to Scotch_Brawth
    Level 1 (0 points)
    Nov 29, 2013 9:41 AM in response to Scotch_Brawth

    I deleted both of my ntfs partitions, So now I have only one mac partition with 170 GB size and a 300 GB free space. Can you tell me now what should I do now to have a good windows beside my mac os x?

    And I have an iso file of my win 7, Do you know any program which is able to send it to my usb flash and make it botable for installing windows?

  • by Loner T,

    Loner T Loner T Nov 29, 2013 9:55 AM in response to saarhotboy
    Level 7 (24,601 points)
    Safari
    Nov 29, 2013 9:55 AM in response to saarhotboy

    You should have a OSX and Recovery HD (possibly). Copy your W7 ISO to OS X and then use Bootcamp assistant to "Create a Windows 7 or later version install disk" which should let you create a bootable USB with Bootcamp drivers and the W7 ISO on the USB. The USB drive should be 8GB or larger.

     

    It would be good to see your gpt and fdisk output before you start.

  • by taibanl,

    taibanl taibanl Nov 29, 2013 7:12 PM in response to Loner T
    Level 1 (0 points)
    Nov 29, 2013 7:12 PM in response to Loner T

    @ Loner T

    @ Christopher Murphy

     

    Per your suggestions, I have posted a unique thread, with as much detail as I can provide at this stage.

     

    https://discussions.apple.com/message/23962639#23962639

  • by Csound1,

    Csound1 Csound1 Nov 29, 2013 7:27 PM in response to Christopher Murphy
    Level 9 (51,161 points)
    Desktops
    Nov 29, 2013 7:27 PM in response to Christopher Murphy

    Hi Chris, if you have time could you look in on this thread?

     

    https://discussions.apple.com/message/23962619#23962619

     

    Thanks

  • by saarhotboy,

    saarhotboy saarhotboy Nov 30, 2013 3:41 PM in response to Scotch_Brawth
    Level 1 (0 points)
    Nov 30, 2013 3:41 PM in response to Scotch_Brawth

    hi

    I want to delete the hybrid mbr and just have a normal one.what should I do now?

    I deleted my win 7 partition and by boot camp installed a new win 7 but now I see win partition in mac but not the mac partition in win.

     

    sudo fdisk /dev/disk0
    Disk: /dev/disk0    geometry: 60801/255/63 [976773168 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    ------------------------------------------------------------------------
    1: EE 1023 254  63 - 1023 254  63 [         1 -     409639] <Unknown ID>
    2: AF 1023 254  63 - 1023 254  63 [    409640 -  363281248] HFS+       
    3: AB 1023 254  63 - 1023 254  63 [ 363690888 -    1269536] Darwin Boot
    *4: 07 1023 254  63 - 1023 254  63 [ 364961792 -  611811328] HPFS/QNX/AUX

     

     

    sudo gpt -r -vv show disk0

    gpt show: disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

    gpt show: disk0: Suspicious MBR at sector 0

    gpt show: disk0: Pri GPT at sector 1

    gpt show: disk0: Sec GPT at sector 976773167

          start       size  index  contents

              0          1         MBR

              1          1         Pri GPT header

              2         32         Pri GPT table

             34          6        

             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

         409640  363281248      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      363690888    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      364960424       1368        

      364961792  611811328      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      976773120         15        

      976773135         32         Sec GPT table

      976773167          1         Sec GPT header

     

     

     

    sudo diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.1 GB   disk0

       1:                        EFI                         209.7 MB   disk0s1

       2:                  Apple_HFS Macintosh HD            186.0 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data                         313.2 GB   disk0s4

  • by Number88,

    Number88 Number88 Nov 30, 2013 7:30 PM in response to saarhotboy
    Level 3 (750 points)
    Nov 30, 2013 7:30 PM in response to saarhotboy

    Boot Camp creates a hybrid mbr. You can't have a working Boot Camp partition without one (on most Macs).

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