Cannot Boot into Macintosh HD after attempting bootcamp resize

Posted on 2013-09-06
Medium Priority
Last Modified: 2013-09-14
I have tried to increase the partition size of the boot camp partition (Windows 7) on my Mac using Ease US Partition Manager.  It rebooted the Mac and then said couldn't update partition at the end.  It then booted back into the Boot camp partition and all looked well except the partition for boot camp was still not resized to be larger.  So I attempted it again and this time I got the error "not enough unallocated space before and after the selected partition for resize move feature".  Now the Macintosh HD and recovery HD are no longer listed to boot from and I cannot boot back into the Apple Operating System (10.8.2).  I've tried starting the MAC using Option+R to load the Disk Utility and there both partitions show up as disk0s2 and disk0s3 and if I try to run a verify or repair disk on each it says "Unrecognized file system" in red for both.  If I boot back into Windows using boot camp I see the Macintosh HD partition and all data is there.  Is there any way to repair the boot manager so Macintosh HD and Windows show up again or do I have to reformat the entire machine?
Question by:Lounger-Master
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LVL 13

Assisted Solution

by:Daniel Helgenberger
Daniel Helgenberger earned 1500 total points
ID: 39472579
Seems to me you trashed your EFI partition.
You are lucky the data is still there!

Do the following:
1. Back up all your data now.
2. Create a bookable mountain lion usb stick / usb HDD
3. Boot from this and re-install MacOS.

This should fix your boot problem and keep your data.

The second step is tricky though:
1. You need another MAC
2. Download MacOSX installer from your app store account
3. Open it with Right Click - show package contents
4. In a sub-directory there is a large DMG, called install-esd.dmg, double click that
5. Open disk disk utility and insert a big USB stick (min 5GB) or usb HDD
6. In partioning tab, patrtion your USB disk with one empty hfs+ partirion and make sure to select GUID parition table in 'advanced'
7. navigate to restore tab
8. In the source filed, drag the install ESD dmg you found earlier - should be on the left list as well
9. Press restore

The USB disk should now be a bookable MacOS installer. You could have done this with the recovery-partion as well with 'reinstall macos x'

Tip: Never ever use third party applications to reside mac partitions! In MacOS its all build in into disk utility. If you cannot do it there, leave it be since you will end up where you are now.

Author Comment

ID: 39473787
Yes, I am a 25 year PC tech and don't work on Mac's that much so lesson learned.  I've completed step 2 already but when I go to install the OSX, it only allows me to select the bootcamp partition and the other part of the drive is not visible.  Further thoughts?
LVL 13

Assisted Solution

by:Daniel Helgenberger
Daniel Helgenberger earned 1500 total points
ID: 39474268

I hope you are still able to mount the damaged partition in MacOS?

If so, I suggest:
Create a new MacOS partition
Copy over data,
Remove the damaged partition
Make a new partition and clone the working one.

In detail:
- Use your installer to install MacOS on an empty drive, for instance a USB disk
- Start the new install
- Try to copy over the old data using Migration assistant 'from another volume' option. You will be prompted to do so when booting the new install. If it works, you will end up with the same Mac, but will have to configure some basic stuff like network connections.
- If for some reason Migration assistant way does not work, do this manually. Boot with the installer, run a terminal from the installer and copy over:
with rsync:
rsync -au /Volumes/foo/ /Volumes/bar

Open in new window

This should do the same. But Migration assistant is by far the better option, since you may end up with some old unwanted stuff. I highly recommend to do a reinstall of MacOS X on the new partition of you use rsync.

If it works, the last step is to remove the damaged partition in the installer, create a new partition and use Disk Utility restore to clone the working partition over again.
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Accepted Solution

Lounger-Master earned 0 total points
ID: 39478617
Thank You so much for all your info.  I would accept this as a solution.  I've done it a little different, for starters, backed up the data for the Apple OS using Windows 7 as it would still load properly and see the data for the MAC OS partition. Then I booted from a Gparted disk and resized the Windows partition to the new desired size. Then I booted the Mac using command+R to start the Internet recovery. Here I ran disk utility and wiped out the OS X partition. Then reinstalled OS X. Now the issue was that the Boot Camp partition would not show up.  Then I installed REFIT and once it was the boot manager, the Boot Camp partition was accessible again. But now Windows wouldn't load. Now booted from a Windows 7 install disk and ran startup repair. Finally all is back to normal and both sides work as they should without having to reinstall the Boot Camp partition. Thank you for your help and suggestions.
LVL 13

Expert Comment

by:Daniel Helgenberger
ID: 39478907
Glad your Mac is working again!
 I anticipated the problems with boot camp partition - since MacOS uses no Efi partition but a folder in /System for that. Chances are my way would have circumvented this ;)


Author Closing Comment

ID: 39492439
Its a multi solution answer and all input on this thread is valuable I believe

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