Q: Bootcamp not bootable after partitioning disk

Question

johnmax345

Level 1 (0 points)

Q: Bootcamp not bootable after partitioning disk

I have partitioned my Macintosh HD into two partitions, but after that, at startup screen, I could not find the bootcamp disk. I deleted my two extras partitions and restarted to see if bootcamp was visible again, to no avail. So, how can I make my bootcamp bootable again?

Forgive me for my bad english, it's not my native language.

MacBook Pro, OS X Mavericks (10.9.4), Bootcamp win 7, MacBookPro final 11

Posted on Jul 29, 2014 6:41 PM

I have this question too

Solved

Loner T

Level 7 (24,800 points)

Safari

A:

The dd command is usually executed against a disk of the form disk0s4 (slice) vs fdisk/gpt against (disk0 or rdisk0). Based on what is provided, your problem is similar to this Repairing Boot Camp after creating new partition.

If you can follow the steps (the sudo fdisk -e /dev/disk0 and remainder commands) in that article, it should fix your issue. If you are uncomfortable in any way, please ask before you take any steps.

Posted on Jul 30, 2014 7:23 AM

Q: Bootcamp not bootable after partitioning disk

All replies

Helpful answers

by Loner T,

Loner T Jul 29, 2014 7:46 PM in response to johnmax345
Level 7 (24,800 points)

Safari

Jul 29, 2014 7:46 PM in response to johnmax345

Please post the output of (none of these will change your system in any way).

1. diskutil list
2. sudo gpt -vv -r show /dev/<DiskNameOfYourBootcamp> (for example disk0s4).
3. sudo fdisk /dev/<DiskNameOfYourBootcamp>
4. sudo dd if=/dev/r<DiskNameOfYourBootcamp> count=1 2>/dev/null | hexdump -C
Reply options

Link to this post

by Loner T,

Loner T Jul 29, 2014 8:03 PM in response to Loner T
Level 7 (24,800 points)

Safari

Jul 29, 2014 8:03 PM in response to Loner T

All these commands are run from OSX Terminal.
Reply options

Link to this post

by johnmax345,

johnmax345 Jul 29, 2014 9:25 PM in response to johnmax345
Level 1 (0 points)

Jul 29, 2014 9:25 PM in response to johnmax345

Thank you, I followed these steps, and thats what I've got:

1)
2)

Unfortunately I keep getting this error message, I tried 5 times and restarted my Mac and tried again,
this was my latest attempt ( the previous ones had the same error)

3)
Same error message

4)
Reply options

Link to this post

by Loner T,

Loner T Jul 30, 2014 3:59 AM in response to johnmax345
Level 7 (24,800 points)

Safari

Jul 30, 2014 3:59 AM in response to johnmax345

Your NTFS filesystem is intact, so it may be fairly easy to fix this.

Can you run this on the whole disk (disk0) not disk0s4? I should have mentioned it clearly.

2. sudo gpt -vv -r show /dev/disk0
3. sudo fdisk /dev/disk0
Reply options

Link to this post

by johnmax345,

johnmax345 Jul 30, 2014 6:59 AM in response to johnmax345
Level 1 (0 points)

Jul 30, 2014 6:59 AM in response to johnmax345

Ok, I reran the terminal using disk0

2)
3)

4)
Reply options

Link to this post

by johnmax345,

johnmax345 Jul 30, 2014 7:54 AM in response to johnmax345
Level 1 (0 points)

Jul 30, 2014 7:54 AM in response to johnmax345

At this very moment, I see my mac running windows again! Thanks! Apple should hire you to fix bootcamp

Just one more question, now I can't use apple keys for volume, brightness or eject disk, I think it's a driver problem, is there a way to reinstall bootcamp drivers on windows or 'turn them on'?
Reply options

Link to this post

by Loner T,

Loner T Jul 30, 2014 8:10 AM in response to johnmax345
Level 7 (24,800 points)

Safari

Jul 30, 2014 8:10 AM in response to johnmax345

Apple may not want a engineer who just fixes Bootcamp.

Yes, you should re-install Bootcamp drivers and verify that all works correctly.

Glad to see it work again.
Reply options

Link to this post

Accepted Answer · Jul 30, 2014 7:23 AM

Loner T

Level 7 (24,800 points)

Safari

Jul 30, 2014 7:23 AM in response to johnmax345

The dd command is usually executed against a disk of the form disk0s4 (slice) vs fdisk/gpt against (disk0 or rdisk0). Based on what is provided, your problem is similar to this Repairing Boot Camp after creating new partition.

If you can follow the steps (the sudo fdisk -e /dev/disk0 and remainder commands) in that article, it should fix your issue. If you are uncomfortable in any way, please ask before you take any steps.

Q: Bootcamp not bootable after partitioning disk

All replies Helpful answers

by Loner T,

by Loner T,

by johnmax345,

by Loner T,

by johnmax345,

by Loner T,Solvedanswer

by johnmax345,

by Loner T,

All replies

Helpful answers