kitayzi
Level 1 (0 points)

Q: Bootcamp missing after update to El Capitan

Threre was a 100GB bootcamp partition and a 400GB OSX partition before updating from Mountain Lion to El Capitan.

 

here's the output of diskutil list after the update:

diskutil.png

 

I may have made the mistake of rebuilding the directory of Macintosh HD with DiskWarrior in an attempt to fix this issue.

 

testdisk Quick search yields:

Screen Shot 2015-12-02 at 4.24.19 PM.png

Selecting any one of the 6174 MS Data [Boot] entries yields:

Screen Shot 2015-12-02 at 4.25.14 PM.png

Couldn't find any other entries containing SVI. Is there hope?

iMac, OS X El Capitan (10.11.1), iMac (24-inch, Mid 2007)

Posted on Dec 2, 2015 1:41 PM

Close
kitayzi

Q: Bootcamp missing after update to El Capitan

  • All replies
  • Helpful answers

Page 1 of 3 last Next

  • by Pmintz25,

    Pmintz25 Pmintz25 Dec 2, 2015 1:46 PM in response to kitayzi
    Level 4 (1,634 points)
    Dec 2, 2015 1:46 PM in response to kitayzi

    Does Disk Utility show another partition? Did this partition have Windows installed, and if so, does it no longer boot?

     

    Looks like it shows that your hard drive is partitioned because it shows 500GB partition scheme and then only 400GB for Mac HD. Also shows 40GB of Microsoft data.

  • by kitayzi,

    kitayzi kitayzi Dec 2, 2015 1:49 PM in response to Pmintz25
    Level 1 (0 points)
    Dec 2, 2015 1:49 PM in response to Pmintz25

    Screen Shot 2015-12-02 at 4.48.49 PM.png

  • by Pmintz25,

    Pmintz25 Pmintz25 Dec 2, 2015 2:03 PM in response to kitayzi
    Level 4 (1,634 points)
    Dec 2, 2015 2:03 PM in response to kitayzi

    Guessing that 40 GB is what is left of the Bootcamp partition...

     

    Did you ever actually have Windows installed? Because if you run through the Bootcamp setup, it will help you partition your hard drive and it will be untitled until you actually install Windows. So Bootcamp will create the partition even if you don't install anything. There could have been an error during the partition, which is most likely why you are seeing 40 GB on the partition "Untitled."

     

    IF you had Windows installed, and know that it ran properly before installing El Capitan, try turning the computer on while holding Option and see if you can boot to the Untitled partition.

     

    If everything has failed on the Bootcamp partition, you will most likely need to make the partition whole again before attempting to install Windows. There are two ways to do this:

    Assuming you had Windows installed, you can open Bootcamp and it will have an option to "Remove Windows 7 or later..."

    If Bootcamp made an error and Windows never installed you will need to delete the partition in Disk Utility. To do this, open Disk Utility from the Recovery drive, select the entire drive (ST3500418....), then click partition. Delete "Untitled" so that your hard drive is 100% Macintosh HD.

     

    The attached support page may clear some things up.

     

    Set up a Windows partition on your Mac - Apple Support

  • by kitayzi,

    kitayzi kitayzi Dec 2, 2015 2:20 PM in response to Pmintz25
    Level 1 (0 points)
    Dec 2, 2015 2:20 PM in response to Pmintz25

    Yes, Windows was installed on a smaller partition (it may have been 40GB, I don't remember exactly), and then the partition was enlarged to 100GB using a free Windows partitioning tool (MiniTool I think, it's been a while). Should've mentioned that initially I suppose.

  • by Loner T,

    Loner T Loner T Dec 2, 2015 2:21 PM in response to kitayzi
    Level 7 (23,898 points)
    Safari
    Dec 2, 2015 2:21 PM in response to kitayzi

    This is not supported by Mac, because the MiniTool does not keep MBR and GPT in sync. Please post the output of

     

    sudo fdisk /dev/disk0

     

    The assumption is that you have not tried to synchronize the GPT and MBR. If you have, then your data may be lost.

     

    Please post your GPT.

  • by Pmintz25,

    Pmintz25 Pmintz25 Dec 2, 2015 2:25 PM in response to kitayzi
    Level 4 (1,634 points)
    Dec 2, 2015 2:25 PM in response to kitayzi

    From the article I posted:


    Change the size of the partition

    It's not possible to change the size of the partition after installing Windows, but you can remove the partition and create a new partition of the correct size. Don't try to resize your partition with Windows or a third-party app.


    So if you can no longer boot to the Windows partition, you will likely need to remove the partition (can be found under the "Modify the Windows Partition" section) and start over. You can alway call AppleCare since they usually provide support for people who install a new OS, regardless of eligibility. Might be worth a shot in this case.


    If my memory serves me correctly, you may be able to view and recovery files on the Windows partition. With Finder open, select "Go" form the menu, then click "Computer." With luck, Untitled will show up here.


    I had to delete my partition and start over as well. I only gave Windows a small partition and then realized I needed more space for games and patches and what not so I feel your pain. But my partition was untouched when I upgraded to El Capitan. I have Windows 7 and it works fine.


    Best of luck

  • by kitayzi,

    kitayzi kitayzi Dec 2, 2015 2:23 PM in response to Loner T
    Level 1 (0 points)
    Dec 2, 2015 2:23 PM in response to Loner T

    sudo fdisk /dev/disk0


    Screen Shot 2015-12-02 at 5.22.25 PM.png


    Not sure what you mean by syncing GPT and MBR. I did rebuild the Mac HD directory using DiskWarrior using a recovery USB.

  • by kitayzi,

    kitayzi kitayzi Dec 2, 2015 2:26 PM in response to Pmintz25
    Level 1 (0 points)
    Dec 2, 2015 2:26 PM in response to Pmintz25

    No, the enlarging of the partition with MiniTool worked fine. It's the OSX update that screwed everything up. I do understand that MiniTool is not supported by bootcamp.

  • by Pmintz25,

    Pmintz25 Pmintz25 Dec 2, 2015 2:29 PM in response to kitayzi
    Level 4 (1,634 points)
    Dec 2, 2015 2:29 PM in response to kitayzi

    The partition schematic on the Mac is completely different than on a Windows machine. Have you ever tried to install OSX on a Windows hard drive? It's a no go. MiniTool is probably designed for a Windows computer with a Windows partition scheme

  • by kitayzi,

    kitayzi kitayzi Dec 2, 2015 2:31 PM in response to Pmintz25
    Level 1 (0 points)
    Dec 2, 2015 2:31 PM in response to Pmintz25

    You're right, I'm sure it messed things up, but I didn't notice any issues for about a year until that OSX update.

  • by Pmintz25,

    Pmintz25 Pmintz25 Dec 2, 2015 2:34 PM in response to kitayzi
    Level 4 (1,634 points)
    Dec 2, 2015 2:34 PM in response to kitayzi

    Yeah it's impossible to know what was changed in the update. There was probably a firmware update that messed with the hard drive. Sorry I don't have a better solution for you.

  • by kitayzi,

    kitayzi kitayzi Dec 2, 2015 2:38 PM in response to Pmintz25
    Level 1 (0 points)
    Dec 2, 2015 2:38 PM in response to Pmintz25

    I appreciate your responses. Let's see if Loner T has any ideas.

  • by Loner T,

    Loner T Loner T Dec 2, 2015 2:40 PM in response to kitayzi
    Level 7 (23,898 points)
    Safari
    Dec 2, 2015 2:40 PM in response to kitayzi

    The OSX Upgrade scans the disk for 'live' NTFS headers. The Mini Tool (a very bad piece of software for Macs) is used and it causes problems by not keeping two structures in sync. The upgrade has no way of knowing which 'live' header is correct, and it will usually pick the smaller one. This shows up as a gap between GPT3 and GPT4.

     

    Apple clearly warns in the link that Pmintz25 posted.

     

    Please post the output of sudo gpt -vv -r show /dev/disk0.

  • by Loner T,

    Loner T Loner T Dec 2, 2015 2:43 PM in response to kitayzi
    Level 7 (23,898 points)
    Safari
    Dec 2, 2015 2:43 PM in response to kitayzi

    kitayzi wrote:

     

    No, the enlarging of the partition with MiniTool worked fine. It's the OSX update that screwed everything up. I do understand that MiniTool is not supported by bootcamp.

    No, it does not. The first reboot when kernel reads the GPT kills Windows. This is not OSX. This is not EFI Upgrade.

Page 1 of 3 last Next