Can't boot into windows after resizing partitions

regardless, thanks for helping.

exit code 8 is back ..... unfortunately.

so I will reinstall OS 10, however i'd like some advice on how i should go about it without impacting my windows installation or my dual boot status ?

use recovery ? if someone can give me some details on what to expect or what to look out for that would be great. i've never done a reinstall of OS 10 before.

I suggest you back up

1. OSX

2. Windows

3. your GPT using Gdisk before you re-install OS X.

During the restore, do not change any partition sizes.

Please also see Use Time Machine to back up or restore your Mac - Apple Support .

ok, just got done with the reinstall and all my files/apps and settings were intact after the reinstall.

i didn't see where i could choose to do a clean install, maybe i missed it. but maybe this reinstall that was done might have fixed any corrupted kext or other OS files .... i will periodically check diskutil to see if exit code 8 comes back.

i checked the GPT and everything appears to be exactly the way it was before, no errors or mismatches.

so everything seems fine in OS 10, i will reboot several times into windows to check that also.

Excellent. Please ensure you have a regular back up cycle for both your OSes, and create a Windows System Restore point before any Windows Update.

Hi,

Hopefully someone can help with with an issue I am having.

I found an old Apple discussion on how to resize a bootcamp partition, by reducing the size of the OS X partition and then using a Windows based tool to then expand the Bootcamp partition. Big mistake! I ended up with the same problem as this thread's creator, with my Windows partition no longer being bootable.

I followed the steps outlined by Loner T, which worked perfectly! Thanks so much!

I then went into Windows and used the Mini Partition Tool to extend the Windows partition into the unallocated partition which worked fine in Windows.

However when I boot back into OS X and open disk utility I can now see 3 separate partitions.. 1) Mac HD; 2) Untitled (the one I created) 3) Windows HD (Bootcamp). So OS X is not recognising that I have extended the Windows HD partition into the Untitled one.

Is there a way to fix this without ruining the now expanded Windows partition? Windows doesn't seem to see two separate partitions, only in OS X.

Thanks in advance!

Do not use any tool to manipulate partitions further, other you will lose information and files. Please post the output of the following OS X Terminal commands.

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.

i'm not familiar with how Time Machine actually works and what it backs-up. is it similar to Windows restore ?

I like using clonezilla because it's incredibly easy and painless to save and restore entire disk images. only downside for me to using clonezilla is that i have to attach my optical drive to run it from CD while i have connected a USB hdd to save the image onto. it's just cumbersome to do that, so I don't do it often. I need to figure out how to run clonezilla from a flash drive.

but it has saved my machines in the past and saved me from the headache of reinstalls and setups that sometimes took hours ...

bad news .... AGAIN.

file exit code 8 reappeared. this just happened after i boot into Windows 10, checked my email and used my browser, then rebooted back into OS 10.

what might be causing this ? I also have paragon HFS+ driver for Windows, which I use to read/write to the HFS+ partition. The reason why I have this is because I use firefox and thunderbird, and I have my profiles stored on the Macintosh HD partition. I have my windows firefox and thunderbird set to read directly from the profiles on the Macintosh HD partition ....

I suppose that I can put my profiles on my NAS drive .... in my experience i had lagging and slow performance in mozilla apps when i loaded them from the NAS. but i was able to use the same profile from windows or mac os.

Loner T do you think this might be causing this issue ?

Yes, trust me I've learnt my lessons on messing with partitions!! here are outputs.. included disk0 and disk1

diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Macintosh HD 121.0 GB disk0s2

3: Apple_Boot Boot OS X 134.2 MB disk0s3

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage Macintosh HD 637.5 GB disk1s2

3: Apple_Boot Recovery HD 650.1 MB disk1s3

4: Apple_HFS 173.7 GB disk1s4

5: Microsoft Basic Data Windows HD 188.0 GB disk1s5

/dev/disk2 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +750.0 GB disk2

Logical Volume on disk0s2, disk1s2

D3F5913D-0A32-4BE8-BD44-A65885746DA0

Unencrypted Fusion Drive

/dev/disk3 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.5 TB disk3

1: EFI EFI 209.7 MB disk3s1

2: Apple_HFS My Book Studio A 1.5 TB disk3s2

/dev/disk4 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.5 TB disk4

1: EFI EFI 209.7 MB disk4s1

2: Apple_HFS My Book Studio B 1.5 TB disk4s2

diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 23846179-0CBE-42F5-A375-0D969F4C789E

=========================================================

Name: Macintosh HD

Status: Online

Size: 758507479040 B (758.5 GB)

Free Space: 229376 B (229.4 KB)

|

+-< Physical Volume 571468F3-1F01-43FF-95B5-96F0B1CA90A2

| ----------------------------------------------------

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

|

+-< Physical Volume 6221D4DD-339F-4497-87C4-2522407182AF

| ----------------------------------------------------

| Index: 1

| Disk: disk1s2

| Status: Online

| Size: 637518626816 B (637.5 GB)

|

+-> Logical Volume Family 41CF6816-F84F-4D76-A6FD-97288E448BF7

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

Encryption Type: None

|

+-> Logical Volume D3F5913D-0A32-4BE8-BD44-A65885746DA0

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

Disk: disk2

Status: Online

Size (Total): 749999882240 B (750.0 GB)

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

LVG Type: Fusion, Sparse

sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176

gpt show: /dev/disk0: PMBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/disk0: Sec GPT at sector 236978175

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 236306352 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

236715992 262144 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

236978136 7

236978143 32 Sec GPT table

236978175 1 Sec GPT header

sudo gpt -vv -r show /dev/disk1

gpt show: /dev/disk1: mediasize=1000204886016; sectorsize=512; blocks=1953525168

gpt show: /dev/disk1: Suspicious MBR at sector 0

gpt show: /dev/disk1: Pri GPT at sector 1

gpt show: error: bogus map

gpt show: unable to open device '/dev/disk1': Undefined error: 0

sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 14751/255/63 [236978176 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 236978175] <Unknown ID>

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

sudo fdisk /dev/disk1

Disk: /dev/disk1 geometry: 121601/255/63 [1953525168 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>

2: AF 25 127 15 - 1023 254 63 [ 409640 - 1245153568] HFS+

3: AB 1023 254 63 - 1023 254 63 [1245563208 - 1269760] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [1246834688 - 706689024] HPFS/QNX/AUX

To avoid confusion, can you start a new discussion and post these outputs? It helps in asking for input and providing feedback.

Please download GPT Fdisk - http://sourceforge.net/projects/gptfdisk/. You seem to have GPT CRC corruption.

It possibly can. It may be difficult to identify if it has already happened.

Can I suggest creating a USB Flash drive/SD Card with a FAT32 file system and using it for you Profiles? I have seen minor to major issues with third-party file system drivers which do not close open files, directories or devices and cause havoc with inodes and directories.

im going to try to keep away from using firefox and thunderbird in windows for a few days to see if the issue disappears. if so, that could be a cause ...

perhaps a FAT32 or extFAT partition added to my computer in order to share data without corruption might work ? i dont know if these fs's will work seamlessly with both OS's ? if it is possible i need to figure out how to (1) shrink my windows partition by a few GB and (2) add the partition sucessfully ...

First try with an external device, before you start repartitioning. It is problematic to repartition drives which also have BC/Windows.

i've been looking for ways to try and make my browser and email profiles shared between windows and mac, but even if i tried going back to putting the profiles on the NAS, i've read it's not recommended to let multiple sessions on different computers share the same profile .... even if those computers have the same OS, same version of browser/mail client and even if they are not simultaneously accessing the profiles.

so perhaps the better option for me is to keep the profile for access on one OS only and use it only there. With firefox, there is the sync feature, which comes in handy to sync various sessions on different devices .... but for thunderbird i will leave it on mac OS, because it's more important to have my email rather than risk corrupting the profile ....

i removed the HFS+ driver from windows. so let's see how that goes over the next few days of dual-booting.

given this, i do have my itunes library on my NAS and I do access it from both windows and mac OS. should i be concerned ? the media folder pointer in both OS's is the same location on the NAS.

so i guess i do not need to add a sharing partition to the macbook's hdd because i have the NAS, which both OS's can easily access.

But now back to my desire to redistribute space between os 10 and windows .... i have my doubts about doing it safely with Camptune ....

i read that disk utility can be used to shrink the macintosh HD partition, but I would not be able to increase it with disk utility ? would i be able to shrink my windows partition within windows first - then go into os 10 and try to claim that space with disk utility ?

or just use camptune ?