Repairing Boot Camp after creating new partition

Hi Chris,

The post thread is too long and I couldn't read it all but I know you saved many people here =)

I hope you or someone else can give me a hand on this.

I run OS X 10.9.2 with an SSD which is partitioned. I have OS X and Win 7 via bootcamp. I also use Parallels to run the bootcamp partition when I don't want to restart my computer.

One day I thought I could easily resize my partitions but once I did that, I got my bootcamp ruined and I no longer can boot windows from bootcamp or Parallels.

However I do access the files from OS X.

Marco-Correas-iMac-3:~ marcoac14$ sudo gpt -r -vv show disk0

Password:

gpt show: disk0: mediasize=256060514304; sectorsize=512; blocks=500118192

gpt show: disk0: Suspicious MBR at sector 0

gpt show: disk0: Pri GPT at sector 1

gpt show: disk0: Sec GPT at sector 500118191

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 312914240 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

313323880 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

314593416 28882808

343476224 156641280 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

500117504 655

500118159 32 Sec GPT table

500118191 1 Sec GPT header

Marco-Correas-iMac-3:~ marcoac14$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 31130/255/63 [500118192 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 - 312914240] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 313323880 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 343476224 - 156641280] Win95 FAT32L

Regards,

Marco

Please start a new thread, but it may be easily fixable.

Your GPT#4 and MBR#4 seem to be in sync.

1. Check if NTFS is intact (this should show you "R.NTFS" in the dump).

sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

2. Using fdisk,

sudo fdisk -e /dev/disk0

setpid 4

07

flag 4

p

w

y

Reboot and test.

There you go:

https://discussions.apple.com/thread/6523111

Thanks

Hi, I had a similar issue as the author originally had, however after making the changes suggested in this thread i am no longer able to boot into windows partition, nor I see it from OS X:

Bootcamp partition is no longer visible and bootable

Hi Chris,

I am having a similar issue but do not have five GPT partitions because I deleted the Linux partitions. I originally had set up a triple boot but then didn't really need the Linux side and wanted to reclaim the space. I no longer have the five GPT partitions but still have the "No bootable device..." error. I have a thread here. Any chance you can give me a quick walk through?

Hi,

I've got a similar problem.

I've posted my info on this thread:

Repairing Boot Camp after upgrading to Mavericks: Jarvis

Would greatly appreciate you guys working your magic.

Thanks!

Alan Jarvis

Hi,

So today I was playing cs:go, running bootcamp, when suddenly my mac crashed and rebooted to mavericks... I've tried several things on this thread but I still can't boot on bootcamp... I really need some files I have there and I can't access them -.-' Is there a way to fix this and get bootcamp to work again? Tell me what you need from terminal so I can upload it here.

Btw, when I created the bootcamp partition I created it with 100gb and later I upgraded it to 400gb without reinstalling bootcamp but it as worked fine for more than a month so I'm assuming that is not the problem...

I really need some help with this...

Thanks,

Gabriel

Please start a new thread and post a reference here and the output of the following commands.

1. diskutil list

2. diskutil cs list

3. sudo gpt -vv -r show /dev/disk0 (if bootcamp is on disk0, or choose the appropriate disk, as shown in diskutil list).

4. sudo fdisk /dev/disk0 (if bootcamp is on disk0, or choose the appropriate disk, as shown in diskutil list).

5. sudo dd if=/dev/rdisk0 count=1 2>/dev/null | hexdump -C (if bootcamp is on disk0, or choose the appropriate disk, as shown in diskutil list).

Thanks for replying so fast 😀 here it is Can't boot from bootcamp after sudden crash

Did this way work for you as I'm interested in your results for future needs as this way seems quicker, I have spent a while trying to restore my windows 7 DMG image and making it boot, the above way didn't work for my using terminal commands, but I finally just made windows boot.

Chris - I you happened to be online I would greatly appreciate you help in fixing this same problem. If the syntax is the same I can go through the process outlined here but I'm guessing you would need to see the output of the sugo reporting to be sure? Thank you in advance. Dave

DIsco dave are you trying to make a windows 7 DMG image boot after you restore image to boot camp portion ?

D3... Please post a new thread and post a reference to that thread here. It keeps problems cleanly separated.

Please post the output of

1. diskutil list

2. diskutil cs list

3. sudo gpt -vv -r show /dev/BootcampDiskWithoutSlice (where BootcampDiskWithoutSlice is of the form disk0 and is visible from the output of 1.)

4. sudo fdisk /dev/BootcampDiskWithoutSlice

5. sudo dd if=/dev/rBootcampDisk count=1 2>/dev/null | hexdump -C (where BootcampDisk is of the form disk0s4 and is visible from the output of 1. Please note the 'r' preceding the disk0s4 format).

link to new thread

https://discussions.apple.com/thread/6574575

Link to thread:

No bootable device — insert boot disk and press any key