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Boot Camp disappeared after installing El Capitan

Hi, I have a lot of important files on my windows 8.1 Boot Camp partition and they were not backed up recently. I upgraded from Yosemite to el capitan OS X 10.10 this afternoon and the screen froze on reboot and then booted into windows with an error. After I rebooted it back into OS X it continued with the install however the Boot Camp partition is not visible from the disk utility although you can see it and select it upon pressing on the Option key during startup. If the windows partition is selected a recovery error is shown for windows, even with the usb key inserted.

Macbook Pro mid-2014 1TB SSD Approximately 700G OS X and 300G Windows 8.1

Here are my results from the terminal prompt tests mentioned in earlier threads.

Any help is appreciated, working on figuring out how to run test disk from the command prompt. New to macs.

Thanks!

Posted on Oct 19, 2015 8:55 PM

72 replies

Loner T

Level 9

59,536 points

Oct 22, 2015 6:30 PM in response to OptionJ

OptionJ wrote:

We need to reconstruct this layout using Gdisk.

Loner T

Level 9

59,536 points

Oct 22, 2015 6:36 PM in response to OptionJ

OptionJ wrote:

The sector addresses are correct, but the partition types are incorrect. You will need to use Gdisk 't' command for GPT 3 and convert it to a GPT disk.

OptionJ Author

Level 1

0 points

Oct 22, 2015 7:35 PM in response to Loner T

I'm still trying to find information for the 't' command that shows steps on how to accomplish that. Nothing so far for 't'

Loner T

Level 9

59,536 points

Oct 22, 2015 8:05 PM in response to OptionJ

sudo gdisk /dev/disk0

Password:

GPT fdisk (gdisk) version 1.0.0

Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

NOTE: Write test failed with error number 1. It will be impossible to save

changes to this disk's partition table!

Partition table scan:

MBR: hybrid

BSD: not present

APM: not present

GPT: present

Found valid GPT with hybrid MBR; using GPT.

Command (? for help): l

0700 Microsoft basic data 0c01 Microsoft reserved 2700 Windows RE

3000 ONIE boot 3001 ONIE config 4100 PowerPC PReP boot

4200 Windows LDM data 4201 Windows LDM metadata 4202 Windows Storage Spac

7501 IBM GPFS 7f00 ChromeOS kernel 7f01 ChromeOS root

7f02 ChromeOS reserved 8200 Linux swap 8300 Linux filesystem

8301 Linux reserved 8302 Linux /home 8303 Linux x86 root ✅

8304 Linux x86-64 root (/ 8305 Linux ARM64 root ✅ 8306 Linux /srv

8400 Intel Rapid Start 8e00 Linux LVM a500 FreeBSD disklabel

a501 FreeBSD boot a502 FreeBSD swap a503 FreeBSD UFS

a504 FreeBSD ZFS a505 FreeBSD Vinum/RAID a580 Midnight BSD data

a581 Midnight BSD boot a582 Midnight BSD swap a583 Midnight BSD UFS

a584 Midnight BSD ZFS a585 Midnight BSD Vinum a601 OpenBSD data

a800 Apple UFS a901 NetBSD swap a902 NetBSD FFS

a903 NetBSD LFS a904 NetBSD concatenated a905 NetBSD encrypted

a906 NetBSD RAID ab00 Apple boot af00 Apple HFS/HFS+

af01 Apple RAID af02 Apple RAID offline af03 Apple label

af04 AppleTV recovery af05 Apple Core Storage be00 Solaris boot

bf00 Solaris root bf01 Solaris /usr & Mac Z bf02 Solaris swap

bf03 Solaris backup bf04 Solaris /var bf05 Solaris /home

bf06 Solaris alternate se bf07 Solaris Reserved 1 bf08 Solaris Reserved 2

bf09 Solaris Reserved 3 bf0a Solaris Reserved 4 bf0b Solaris Reserved 5

Press the <Enter> key to see more codes:

c001 HP-UX data c002 HP-UX service ea00 Freedesktop $BOOT

eb00 Haiku BFS ed00 Sony system partitio ed01 Lenovo system partit

ef00 EFI System ef01 MBR partition scheme ef02 BIOS boot partition

f800 Ceph OSD f801 Ceph dm-crypt OSD f802 Ceph journal

f803 Ceph dm-crypt journa f804 Ceph disk in creatio f805 Ceph dm-crypt disk i

fb00 VMWare VMFS fb01 VMWare reserved fc00 VMWare kcore crash p

fd00 Linux RAID

Command (? for help): ?

b back up GPT data to a file

c change a partition's name

d delete a partition

i show detailed information on a partition

l list known partition types

n add a new partition

o create a new empty GUID partition table (GPT)

p print the partition table

q quit without saving changes

r recovery and transformation options (experts only)

s sort partitions

t change a partition's type code

v verify disk

w write table to disk and exit

x extra functionality (experts only)

? print this menu

Command (? for help): t

Partition number (1-4):

OptionJ Author

Level 1

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Oct 23, 2015 6:34 AM in response to Loner T

Disabled SIP using csrutil in the online recovery terminal.

Haven't found the information about which type code to change partition 3 to yet. Tried to find the original type code for that partition as well in my saved screenshots but no luck so far.

Loner T

Level 9

59,536 points

Oct 23, 2015 8:05 AM in response to OptionJ

From my previous post (output of the 'l' command), af05 is Core Storage. 😉

OptionJ Author

Level 1

0 points

Oct 23, 2015 11:09 AM in response to Loner T

Here is where I am now: selected GPT and command 't' partition number 3 which shows as Recovery HD and entered GUID af05

Is this correct?

OptionJ Author

Level 1

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Oct 23, 2015 11:37 AM in response to Loner T

Screenshot of process

Loner T

Level 9

59,536 points

Oct 23, 2015 11:55 AM in response to OptionJ

GPT2 (OSX Core Storage) has a code of AF05, GPT3 (Recovery HD) has a code of AB00. If you notice in the two screen shots I posted, the long string is different only for GPT2, but the rest are the same. AF05 for GPT2 will get translated to 53746F72-6167-11AA-AA11-00306543ECAC which will match the older layout.

Please also see https://en.wikipedia.org/wiki/GUID_Partition_Table as a reference.

OptionJ Author

Level 1

0 points

Oct 23, 2015 12:20 PM in response to Loner T

Ok that makes sense.

Although I turned off SIP I still get the error when loading gdisk.

Here is where I am now:

Proceed?

Loner T

Level 9

59,536 points

Oct 23, 2015 12:27 PM in response to OptionJ

Try it. With SIP Disabled, it should work. If it does not, disable SIP again, and try it. NVRAM Reset can change SIP state.

OptionJ Author

Level 1

0 points

Oct 23, 2015 12:58 PM in response to Loner T

so I used 'csrutil disable; reboot' from the terminal in internet recovery

Here is the output

Is this SIP related or some other issue?

Loner T

Level 9

59,536 points

Oct 23, 2015 1:01 PM in response to OptionJ

OptionJ wrote:

so I used 'csrutil disable; reboot' from the terminal in internet recovery

You cannot use Internet Recovery (Command+Opt+R - Spinning globe recovery). You need to use Local Recovery (Command+R).

OptionJ Author

Level 1

0 points

Oct 23, 2015 1:07 PM in response to Loner T

Well I used command + R and all it will give me is the internet recovery. Any idea how to get local recovery to come up? other than command + R

OptionJ Author

Level 1

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Oct 23, 2015 2:02 PM in response to OptionJ

Tried disabling SIP using 2 other methods:

cd into /usr/bin/csrutil

The only command that will work in this directory is 'status'

also trying this

from terminal either command + r' utilities - terminal after startup or in terminal-Macintosh HD

That didn't work either to disable SIP

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Boot Camp disappeared after installing El Capitan