You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Can't boot from bootcamp after adding partition using disk utility

My question is similar with Repairing Boot Camp after creating new partition,


i recently install the el capitan + windows 7 (using bootcamp), all working fine after i adding the third partition. (i plan the third partition will be use for dropbox, so mac and windows can sync-ing one dropbox folder for both of them).


after i make the third partition, and restart the system, i hold OPTION and not found the windows.


my mbp spec:


MD101 2012 13",

SAMSUNG SSD PRO 850 256GB,

RAM 16GB,

osx elcapitan + windows 7 ultimate.


thanks

MacBook Pro, OS X El Capitan (10.11.3), RAM upgraded to 16GB

Posted on Mar 15, 2016 11:19 PM

Reply
21 replies

Mar 18, 2016 10:11 AM in response to Loner T

Last login: Sat Mar 19 00:06:44 on console

Antoniuss-MacBook-Pro:~ Antonius_Felix$ sudo fdisk /dev/disk0

Password:

fDisk: /dev/disk0 geometry: 31130/255/63 [500118192 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

------------------------------------------------------------------------

1: EE 0 0 2 - 1023 254 63 [ 1 - 246283855] <Unknown ID>

2: AB 1023 254 63 - 1023 254 63 [ 246283856 - 1269536] Darwin Boot

3: 07 1023 254 63 - 1023 254 63 [ 247553392 - 56990352] HPFS/QNX/AUX

*4: 07 1023 254 63 - 1023 254 63 [ 304805888 - 195311616] HPFS/QNX/AUX

Antoniuss-MacBook-Pro:~ Antonius_Felix$

Mar 18, 2016 1:47 PM in response to antoniusfelix

You created an extra partition, and to make Windows work, we 'combined' the OSX and EFI partitions into a single 'part' for Windows to 'see' (using 3 4 5). Under normal circumstances it is 2 3 4, which allows a 1:1 mapping, and you can see OSX partition, if it is JHFS+. In your current configuration, it is not possible for Bootcamp drivers to see this 'combined' partition.

Can't boot from bootcamp after adding partition using disk utility

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.