NicolasOtis

Q: BootCamp won't boot normally after a partition resize

Hi!

 

I read a lot about this issue since yesterday, but i haven't found a solution yet, so i'm asking for help! Here's the story.


I have a windows 7 partition on my iMac for gaming purpose. Last week, i resized my partitions without any problem using Disk Utility and a little software on Windows. Yesterday, i did the exact same thing because i needed a bit more space in my windows partition. After resizing in Disk Utility, i tried to switch over to my windows partition but it wouldn't appear on the startup screen.

 

With the help of another topic, i managed to make it bootable again, but now i'm getting «Missing operating system» error.

 

I already tried to use my Windows 7 installation disc to repair windows, but it's not able to finish the process.

 

I could delete the windows partition and reinstall windows on a fresh start, but it mean going over the process of downloading + installing all my games... so i'm hoping someone could help me bring my windows back to life!

 

I suspect you are gonna ask me to provide the input from this:

1. diskutil list

2. sudo gpt -vv -r show /dev/disk0

3. sudo fdisk /dev/disk0

 

... so here they are!

 

Thank you!

 

Last login: Mon Dec 28 16:28:11 on ttys000

 

Nicolass-iMac:~ nicolasotis$ diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *500.1 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                  Apple_HFS Mac HD                  402.3 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data                         50.0 GB    disk0s4

Nicolass-iMac:~ nicolasotis$ sudo gpt -vv -r show /dev/disk0

Password:

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

gpt show: /dev/disk0: Suspicious MBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/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  785828224      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  786237864    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  787507400   91610936        

  879118336   97654784      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  976773120         15        

  976773135         32         Sec GPT table

  976773167          1         Sec GPT header

Nicolass-iMac:~ nicolasotis$ 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 -  785828224] HFS+       

3: AB 1023 254  63 - 1023 254  63 [ 786237864 -    1269536] Darwin Boot

*4: 07 1023 254  63 - 1023 254  63 [ 879118336 -   97654784] HPFS/QNX/AUX

Nicolass-iMac:~ nicolasotis$

iMac, OS X Mavericks (10.9.5)

Posted on Dec 28, 2015 1:39 PM

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