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Bootcamp not working after partition resizing

Hi,

Following Loner T's advice, I'm starting a new thread.

My problem:

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

What Loner T has asked me to try:

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.

Dump:

Marco-Correas-iMac-3:~ marcoac14$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

Password:

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 08 79 14 |........?.....y.|

00000020 00 00 00 00 80 00 80 00 ff 27 56 09 00 00 00 00 |.........'V.....|

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 71 d1 53 7a e2 53 7a 42 |........q.Sz.SzB|

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

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

fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory

Unfortunately the file is missing but I hope this is still fixable.

Cheers

iMac, OS X Mavericks (10.9.2)

Posted on Sep 7, 2014 5:49 PM

Best reply

Loner T

Level 9

59,471 points

Posted on Sep 7, 2014 6:05 PM

Good to see the NTFS header intact.

Please ignore that error messages which is related to older i386 stuff and continue.

Resizing, using Disk Utility or any other tool, of a Bootcamp partition is not recommended. - Boot Camp 5.1: Frequently asked questions

You may lose this space. 314593416 28882808

View in context

39 replies

marcoac14 Author

Level 1

0 points

Sep 9, 2014 5:35 AM in response to Loner T

I guess that was the first thing I tried.

However...

Windows failed to start. A recent hardware os software change might be the cause.

...

Status: 0xc0000225

Info: The boot selection failed because a required device is inaccessible.

And it won't let me start the boot from the DVD.

Loner T

Level 9

59,471 points

Sep 9, 2014 9:58 AM in response to marcoac14

If you hold the Shift key (or Fn+Shift) when switching to Windows, does it bring up a Recovery console.

Using Bootrec.exe is the most likely method to succeed.

marcoac14 Author

Level 1

0 points

Sep 9, 2014 6:26 PM in response to Loner T

Sorry, but I don't know when to hold the shift key.

This is what I get when I try to boot Windows: http://s28.postimg.org/sj8c261bx/foto.jpg

I pressed enter but it doesn't work. Nothing happens.

…failed because a required device is inaccessible.

I seems like my dvd drive is not working when it's supposed to. I works on OS X though. 😢

Loner T

Level 9

59,471 points

Sep 9, 2014 6:48 PM in response to marcoac14

1. You may need to try both Shift and Fn+Shift.

2. It should be tried after the screen goes black with the "hanging" cursor and before the screen that you posted.

3. There is also Shift+F8, F8, Fn+F8, that you can try.

Your DVD may be working.

Please see this link - http://windows.microsoft.com/en-us/windows/advanced-startup-options-including-sa fe-mode#1TC=windows-7

marcoac14 Author

Level 1

0 points

Sep 9, 2014 7:34 PM in response to Loner T

I figured out how to get into Windows Boot Manager. I had to press any key to turn on the keyboard after selecting Windows. For some reason it turns off my keyboard.

After getting into boot manager, Windows is an option and I tried to hit F8 but it goes back to the screen I showed you.

I don't know what's going on but for some reason it won't recognize my dvd drive and boot from it.

Man, I'm getting sick of this. Not because of you of course, who is very kind by the way, but because OS X shouldn't have allowed me to do this. 😢

Loner T

Level 9

59,471 points

Sep 9, 2014 9:00 PM in response to marcoac14

Is the Optical drive built-in on the iMac or an external Optical Drive?

http://support.microsoft.com/kb/927392 is what is needed to fix your issue. Is there a possibility that someone can build a Windows Recovery disk/USB for you on a PC?

Please see the section "Create boot disk for Windows 7" -> "If you do not have the installation disk..." (Please be aware that this is a commercial product and I have never used it).

marcoac14 Author

Level 1

0 points

Sep 10, 2014 7:48 PM in response to Loner T

I tried what you said and built and loaded the installer on a usb drive via windows tool. Unfortunately it doesn't work either.

I just can't boot from cd/dvd/usb. It doesn't work for some reason.

AFAIK the only way to run bootrec is from the installation disk.

Is there a way to change the windows boot order on bootcamp?

Thanks

Loner T

Level 9

59,471 points

Sep 10, 2014 8:12 PM in response to marcoac14

There is no UI to interact with CSM-BIOS that I am aware of. Parallels and VMware simulate the BIOS layer.

1. Please check the EasyBCD, but it is PC-centric. https://neosmart.net/wiki/easybcd/basics/

2. You can also try Hiren's BootCD, even though I have no experience with it.

3. Is it possible for you to reinstall Windows from scratch? This would depend on how much effort and data loss your are willing to tolerate.

marcoac14 Author

Level 1

0 points

Sep 10, 2014 8:32 PM in response to Loner T

I found this tool yesterday but I don't really think it'll work since it's not a PC.

Maybe I could try that software on Parallels. It'll let me boot from dvd. Any thoughts?

It's possible but not desirable. Lots of effort involved.

Loner T

Level 9

59,471 points

Sep 11, 2014 4:55 AM in response to marcoac14

Since the error is related to a Windows devices, was your disk reduced from the OS X side an new Windows partition added from the Windows side?

The Parallels article does allow changing boot order and booting from CD/USB/HDD based on their article, because it has its own simulated BIOS layer. It is worth a try.

marcoac14 Author

Level 1

0 points

Sep 11, 2014 6:08 PM in response to Loner T

Yes, reduced from the OS X side then I created a new logical drive on the windows side.

Loner T

Level 9

59,471 points

Sep 11, 2014 6:30 PM in response to marcoac14

I have seen an issue on Windows versions where a missing "internal" device causes other drivers (USB, BT, etc.) not to be loaded properly.

There is a tool called Testdisk which can look for (and in some cases rebuild NTFS partitions) - http://www.cgsecurity.org/wiki/TestDisk and http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step.

The "missing" device is logically between the Recovery HD and the NTFS header that you dumped from rdisk0s4 with the dd command. Test disk has helped quite a bit in the past, it still has its challenges. You may also download GPT fdisk from the SourceForge page, which is handy.

Using these two tools, one option would be to make GPT #4 (and MBR#4) start right after the Recovery HD, rather than where it is now. If that works, you may be able to repair the disk via Windows Recovery (or Parallels) if the "missing" device issue can be addressed.

This process can be slow and time consuming. If you want to try this method, let me know.

marcoac14 Author

Level 1

0 points

Sep 11, 2014 8:48 PM in response to Loner T

Yes, I wanna try any method available. It can't get any worse =)

Thanks for helping!

marcoac14 Author

Level 1

0 points

Oct 15, 2014 5:36 PM in response to Loner T

Hello Loner,

I'm back! I decided to give up on my Windows Partition and started my bootcamp setup from scratch.

However I believe my optical drive is dead. It won't recognise any dvd and it thinks all dvds are blank.

I also tried the usb method but I believe my iMac (early 2011) does not support this method.

After a while I realised that my windows file partition won't mount on startup and I can't manually mount is as well. Any idea?

Error message:

Mount failed

The disk windows hd files could not be mounted. Try running First Aid on the disk and the retry mounting.

It's a NTFS partition and because of this, verify disk and repair disk is not supported.

Any idea?

Thanks

Loner T

Level 9

59,471 points

Oct 15, 2014 6:47 PM in response to marcoac14

marcoac14 wrote:

I also tried the usb method but I believe my iMac (early 2011) does not support this method.

Please take a look at Enable Bootcamp to install from usb for OSX 10.9**WORKS**

marcoac14 wrote:

After a while I realised that my windows file partition won't mount on startup and I can't manually mount is as well. Any idea?

Error message:

Mount failed

The disk windows hd files could not be mounted. Try running First Aid on the disk and the retry mounting.

It's a NTFS partition and because of this, verify disk and repair disk is not supported.

Any idea?

Does your Windows partition show up in Finder? I have W7 and I did create a Repair Disk. I will have to check how big it is and if I can upload it to dropbox for you to download it/burn it. If your DVD is on the blink, there may be a possibility of using an external optical drive.

Bootcamp not working after partition resizing