Win 7 won't boot after creating new partition for fileswaping.

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Shieeet Author

Level 1

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Win 7 won't boot after creating new partition for fileswaping.

Hello there!

As the header says, Windows 7 won't boot. Made a partition to swap files between OS X and Win 7.

I saw in a thread that it could be fixed using fdisk. I'm really new to OS X, so I really dont

know what to do. Just writing the outcome from the commands I found in the thread.

I now know there is a warning about making partitions AFTER installing Windows.

Would really appreciate if anybody took some time telling me what to do!

diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.1 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage MacBook Hoveddisk 382.5 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data FILDELING 16.6 GB disk0s4

5: Microsoft Basic Data Windows HD 100.0 GB disk0s5

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +382.2 GB disk1

Logical Volume on disk0s2

AD4E7A3F-9F8E-4734-8B4B-B65587CDD2A1

Unlocked Encrypted

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: AC 1023 254 63 - 1023 254 63 [ 409640 - 747116216] <Unknown ID>

3: AB 1023 254 63 - 1023 254 63 [ 747525856 - 1269536] Darwin Boot

4: 0B 1023 254 63 - 1023 254 63 [ 748795392 - 32403968] Win95 FAT-32

gpt -v -r show /dev/disk0

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

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

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 747116216 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

747525856 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

748795392 32403968 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

781199360 262144

781461504 195311616 5 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

976773120 15

976773135 32 Sec GPT table

976773167 1 Sec GPT header

MacBook Pro, OS X El Capitan (10.11.2), null

Posted on Dec 15, 2015 12:03 PM

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Answer 1

Loner T

Level 9

59,536 points

Dec 15, 2015 12:27 PM in response to Shieeet

Please post the output of

sudo dd if=/dev/rdisk0s5 count=1 2>/dev/null | hexdump -C

Can you see Windows files in the Bootcamp volume using Finder?

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Answer 2

Shieeet Author

Level 1

0 points

Dec 15, 2015 12:39 PM in response to Loner T

I can see everything in the Bootcamp-partition in Finder.

00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|

00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 28 94 2e |........?....(..|

00000020 00 00 00 00 80 00 80 00 ff 37 a4 0b 00 00 00 00 |.........7......|

00000030 00 00 0c 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|

00000040 f6 00 00 00 01 00 00 00 20 b9 ec 44 d7 ec 44 18 |........ ..D..D.|

00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.....3.....|.h..|

00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|

00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|

00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|

00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|

000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|

000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|

000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|

000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|

000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|

000000f0 68 07 bb 16 68 70 0e 16 68 09 00 66 53 66 53 66 |h...hp..h..fSfSf|

00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|

00000110 28 10 b9 d8 0f fc f3 aa e9 5f 01 90 90 66 60 1e |(........_...f`.|

00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|

00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|

00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|

00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|

00000160 0e 16 00 75 bc 07 1f 66 61 c3 a0 f8 01 e8 09 00 |...u...fa.......|

00000170 a0 fb 01 e8 03 00 f4 eb fd b4 01 8b f0 ac 3c 00 |..............<.|

00000180 74 09 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 |t.............A |

00000190 64 69 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 |disk read error |

000001a0 6f 63 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d |occurred...BOOTM|

000001b0 47 52 20 69 73 20 6d 69 73 73 69 6e 67 00 0d 0a |GR is missing...|

000001c0 42 4f 4f 54 4d 47 52 20 69 73 20 63 6f 6d 70 72 |BOOTMGR is compr|

000001d0 65 73 73 65 64 00 0d 0a 50 72 65 73 73 20 43 74 |essed...Press Ct|

000001e0 72 6c 2b 41 6c 74 2b 44 65 6c 20 74 6f 20 72 65 |rl+Alt+Del to re|

000001f0 73 74 61 72 74 0d 0a 00 8c a9 be d6 00 00 55 aa |start.........U.|

00000200

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Answer 3

Loner T

Level 9

59,536 points

Dec 15, 2015 3:23 PM in response to Shieeet

El Capitan requires disabling SIP to manipulate partitions. This will not work if you boot into Internet Recovery (Command+Opt+R), but only works in Local Recovery (Command+R).

1. Boot into Local Recovery (Command+R).

2. Start Utilities -> Terminal.

3. Type csrutil disable in Terminal and press Enter/Return.

4. Type csrutil status.

5. Boot normally, and type csrutil status to confirm that all individual entries are still disabled.

The following steps are non-standard because there is a third user-visible partition. Typically, there are two such partitions in a normal configuration on a single-disk Mac with OS X and Bootcamp. This is fragile and lack of proper backups can lead to potential data loss. Download GPT Fdisk from http://sourceforge.net/projects/gptfdisk/ and install it on the OS X side. The following steps are executed when booted in OS X.

Rebuild MBR to match the new GPT information thus resetting the Hybrid MBR. Use defaults for other questions (like partition codes). The only values that need modifications are the Boot flags and step 10. Accept all other defaults that Gdisk offers. Please see thesample Q&A as an example. These steps can be repeated if you make a mistake before you get to Step 12, otherwise start from Step 1 for these steps. Step 6 has numbers which are typed with a space between the numbers. Please see the sample Q&A before you execute these steps.

Sudo gdisk /dev/rdisk0
P (Print list of parts)
R (Recover)
O (print current Hybrid MBR)
H (chooses Hybrid)
Partitions numbers to be hybridized: 3 4 5
Y (Good for GRUB question)
N (part 3 boot flag)
N (part 4 boot flag)
Y (part 5 boot flag make NTFS bootable partition)
O (print current Hybrid MBR)
W (Write the new MBR)
Y (Yes! write the new MBR)
Reboot

Here is sample Q&A for this section. Please notice the Press Enter/Return. Accept defaults offered by Gdisk.

Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): Y

Creating entry for GPT partition #3 (MBR partition #2)

Enter an MBR hex code (default AF or AB): Press Enter/Return

Set the bootable flag? (Y/N): N

Creating entry for GPT partition #4 (MBR partition #3)

Enter an MBR hex code (default AB or 0B or 0C): Press Enter/Return

Set the bootable flag? (Y/N): N

Creating entry for GPT partition #5 (MBR partition #4)

Enter an MBR hex code (default 07): Press Enter/Return

Set the bootable flag? (Y/N): Y

Bootcamp disappears after creating third partition

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Answer 4

Shieeet Author

Level 1

0 points

Dec 16, 2015 12:49 PM in response to Loner T

Thanks for the help mate!

I'll try my best. Update coming after I tried enough!

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Answer 5

Shieeet Author

Level 1

0 points

Dec 16, 2015 4:43 PM in response to Loner T

Followed the steps as you wrote them. Works like a charm now, thanks again!

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Answer 6

Loner T

Level 9

59,536 points

Dec 16, 2015 4:46 PM in response to Shieeet

Please create a regular backup schedule for OS X, FILDELING and Windows, and create a Windows System Restore point.

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Answer 7

Shieeet Author

Level 1

0 points

Dec 16, 2015 4:49 PM in response to Loner T

Time Machine for the whole system, and then Windows System Restore point?

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Answer 8

Loner T

Level 9

59,536 points

Dec 16, 2015 4:51 PM in response to Shieeet

1. Time Machine for OS X and FILDELING.

2. Windows Backup for the Windows partition on a separate disk.

3. Windows System Restore point.

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Answer 9

Shieeet Author

Level 1

0 points

Dec 16, 2015 4:57 PM in response to Loner T

I see that you are pointing out that I should use a separate disk for Windows backup.

But can't I just take the Win backup on a separate partition on my "WD My Passport"?

And of course Time Machine backup on one of the partitions as well.

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Answer 10

Loner T

Level 9

59,536 points

Dec 16, 2015 5:32 PM in response to Shieeet

Yes, you can use the WD, as long as you keep the partitions separate. The WD is now a single-point-of-backup-failure.

Is the WD a NAS or a direct-attached disk? Be aware of Backup disks you can use with Time Machine - Apple Support . Non-Time Capsule disks cannot be network-attached for Time Machine backups.

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