3 Replies Latest reply: Jan 19, 2013 3:32 PM by Linc Davis
irfan199 Level 1 Level 1 (0 points)

I'm using macbook pro early 2011 and using snow leopard and windows 8 on bootcamp. After updating to the latest version of snow leopard, I upgraded to Mountain Lion. On the end of the installation, the installer/bootloader can't boot the mac OS or Win 8 bootcamp. I tried using option key only recovery partition can be boot. Also I've tried reinstall from command-R menu, but the installer can't find the mac partiotion.


I tried using disk utility from recovery menu but it says "invalid BS_jmpBoot in..." Verify or Repair has failed successfully. I think the partition information is mismatch or can't be read by bootloader.


I have put the problematic harddrive to external case, using it as external drive and put an unused harddrive and install snow leopard. When I plugged in the external drive the os won't load/mount the drive/partitions. I've tried it on linux, the mac partition can be mounted but the win 8 bootcamp still can't be access.


How can I recover the partiotion or data on the win 8 bootcamp partition? Thanks for the help.


FYI the result from sudo gpt -r -vv show disk1:


gpt show: disk1: mediasize=1000204886016; sectorsize=512; blocks=1953525168

gpt show: disk1: Suspicious MBR at sector 0

gpt show: disk1: Pri GPT at sector 1

gpt show: disk1: Sec GPT at sector 1953525167

       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   397430960      2  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

   397840600     1269544      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

   399110144  1554413568      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  1953523712        1423        

  1953525135          32         Sec GPT table

  1953525167           1         Sec GPT header

MacBook Pro, OS X Mountain Lion (10.8.2)