User profile for user: Frank-APP
Frank-APP Author
User level: Level 1
4 points

bootcamp partition no longer mountable

I was trying to get OSX to be able to read the 2 Windows partitions( named System and Data repectively). Maybe due to installations of Paragon and Tuxera, now the System partition no longer mountable in OS X, the Data partition is still accessible.


I have read LonerT's instructions to other similar problems, and here are the results of those routine checks:


localhost:~ Leibniz$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Macintosh HD 199.4 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data Untitled 150.6 GB disk0s4

5: Microsoft Basic Data Data 149.4 GB disk0s5

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +199.0 GB disk1

Logical Volume on disk0s2

65526698-B9FC-4FC5-A4D6-379C934E289C

Unlocked Encrypted



localhost:~ Leibniz$ sudo gdisk -l /dev/disk0

Password:

GPT fdisk (gdisk) version 1.0.1


Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

Partition table scan:

MBR: protective

BSD: not present

APM: not present

GPT: present


Found valid GPT with protective MBR; using GPT.

Disk /dev/disk0: 977105060 sectors, 465.9 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): E58684AF-9C11-4E9B-BCAF-2B812CDC8F7B

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 977105026

Partitions will be aligned on 8-sector boundaries

Total free space is 2185 sectors (1.1 MiB)


Number Start (sector) End (sector) Size Code Name

1 40 409639 200.0 MiB EF00 EFI System Partition

2 409640 389775583 185.7 GiB AF05 Customer

3 389775584 391045119 619.9 MiB AB00 Recovery HD

4 391045120 685228031 140.3 GiB 0700 BOOTCAMP

5 685228032 977102847 139.2 GiB 0700 Basic data partition

localhost:~ Leibniz$ sudo gpt -r -vv show disk0

Password:

gpt show: disk0: mediasize=500277790720; sectorsize=512; blocks=977105060

gpt show: disk0: PMBR at sector 0

gpt show: disk0: Pri GPT at sector 1

gpt show: disk0: Sec GPT at sector 977105059

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 389365944 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

389775584 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

391045120 294182912 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

685228032 291874816 5 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

977102848 2179

977105027 32 Sec GPT table

977105059 1 Sec GPT header



localhost:~ Leibniz$ sudo fdisk /dev/disk0

Password:

Disk: /dev/disk0 geometry: 60821/255/63 [977105060 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 977105059] <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

localhost:~ Leibniz$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Macintosh HD 199.4 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data System 150.6 GB disk0s4

5: Microsoft Basic Data Data 149.4 GB disk0s5

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +199.0 GB disk1

Logical Volume on disk0s2

65526698-B9FC-4FC5-A4D6-379C934E289C

Unlocked Encrypted




TestDisk 7.0, Data Recovery Utility, April 2015

Christophe GRENIER <grenier@cgsecurity.org>

http://www.cgsecurity.org


Disk /dev/disk0 - 500 GB / 465 GiB - 977105060 sectors (RO)

Current partition structure:

Partition Start End Size in sectors


1 P EFI System 40 409639 409600 [EFI System Partition]

2 P Unknown 409640 389775583 389365944 [Customer]

3 P Mac Boot 389775584 391045119 1269536 [Recovery HD]

Warning: number of heads/cylinder mismatches 255 (NTFS) != 1 (HD)

Warning: number of sectors per track mismatches 63 (NTFS) != 1 (HD)

4 P MS Data 391045120 685228031 294182912 [BOOTCAMP]

Warning: number of heads/cylinder mismatches 255 (NTFS) != 1 (HD)

Warning: number of sectors per track mismatches 63 (NTFS) != 1 (HD)

5 P MS Data 685228032 977102847 291874816 [Basic data partition]

]]


is it normal that fdisk has only 1 line? should have at least 4 here? Testdisk can't print out filenames, reporting something is damaged...

Please HELP!! Many Many Thanks!!

Posted on Sep 4, 2016 7:24 AM

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40 replies
User profile for user: Frank-APP
Frank-APP Author
User level: Level 1
4 points

Sep 4, 2016 3:56 PM in response to Loner T

Thanks LonerT! Here are the reports of the two commands:


localhost:~ Leibniz$ 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 e0 4e 17 |........?.....N.|

00000020 00 00 00 00 80 00 80 00 ff df 88 11 00 00 00 00 |................|

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 6c e9 97 c8 07 98 c8 10 |........l.......|

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 52 11 16 68 09 00 66 53 66 53 66 |h...hR..h..fSfSf|

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

00000110 0a 13 b9 f6 0c fc f3 aa e9 fe 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 a1 f6 01 e8 09 00 |...u...fa.......|

00000170 a1 fa 01 e8 03 00 f4 eb fd 8b f0 ac 3c 00 74 09 |............<.t.|

00000180 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 64 69 |............A di|

00000190 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 6f 63 |sk read error oc|

000001a0 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d 47 52 |curred...BOOTMGR|

000001b0 20 69 73 20 63 6f 6d 70 72 65 73 73 65 64 00 0d | is compressed..|

000001c0 0a 50 72 65 73 73 20 43 74 72 6c 2b 41 6c 74 2b |.Press Ctrl+Alt+|

000001d0 44 65 6c 20 74 6f 20 72 65 73 74 61 72 74 0d 0a |Del to restart..|

000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|

000001f0 00 00 00 00 00 00 8a 01 a7 01 bf 01 00 00 55 aa |..............U.|

00000200

localhost:~ Leibniz$ sudo dd if=/dev/rdisk0s5 count=1 2>/dev/null | hexdump -C

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 c0 d7 28 |........?......(|

00000020 00 00 00 00 80 00 80 00 ff a7 65 11 00 00 00 00 |..........e.....|

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 c1 de 63 b4 26 64 b4 3e |..........c.&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 52 11 16 68 09 00 66 53 66 53 66 |h...hR..h..fSfSf|

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

00000110 0a 13 b9 f6 0c fc f3 aa e9 fe 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 a1 f6 01 e8 09 00 |...u...fa.......|

00000170 a1 fa 01 e8 03 00 f4 eb fd 8b f0 ac 3c 00 74 09 |............<.t.|

00000180 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 64 69 |............A di|

00000190 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 6f 63 |sk read error oc|

000001a0 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d 47 52 |curred...BOOTMGR|

000001b0 20 69 73 20 63 6f 6d 70 72 65 73 73 65 64 00 0d | is compressed..|

000001c0 0a 50 72 65 73 73 20 43 74 72 6c 2b 41 6c 74 2b |.Press Ctrl+Alt+|

000001d0 44 65 6c 20 74 6f 20 72 65 73 74 61 72 74 0d 0a |Del to restart..|

000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|

000001f0 00 00 00 00 00 00 8a 01 a7 01 bf 01 00 00 55 aa |..............U.|

00000200

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Sep 4, 2016 4:21 PM in response to Frank-APP

Which of the two partition is a bootable W8.1? I assume System is. What is the year/model of your Mac?


You seem to have an EFI Boot installation of W8.1 since you reference winload.efi. Is that correct?


Can you disable Paragon and test?


Please also see https://kb.paragon-software.com/article/204 and this part...

It should be noted that the NTFS for Mac boot selector doesn’t work for Boot Camp configurations using a pure GPT disk layout instead of hybrid GPT. This applies to Macbook Airs from mid-2013 and later, and Macbook Pros and Mac Pros released in late 2013 and beyond. On those systems, you need to use the Option boot selector for booting into Windows, unless it’s installed to a pure MBR disk.

You have a pure GPT disk as the Fdisk output shows.


This link - Re: Can't resize Macintosh HD partition - will let you mount the EFI partition (disk0s1) and check for a Microsoft directory.

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Sep 4, 2016 8:20 PM in response to Frank-APP

Use F8 and boot to Safe Mode with Command Prompt. You will need to run sfc (System File Checker). Please also see

https://support.microsoft.com/en-us/kb/929833


You will need to use syntax similar to


sfc /scannow /offbootdir=d:\ /offwindir=d:\windows

The /offbootdir= option specifies the drive letter, while the /offwindir=option specifies the Windows path, again including the drive letter.


Choose offbootdir and offwindir by checking diskpart and verifying your drive letters.

Reply
User profile for user: Frank-APP
Frank-APP Author
User level: Level 1
4 points

Sep 4, 2016 8:46 PM in response to Frank-APP

paragon NTFS and Texura NTFS have been uninstalled immediately after this problem detected.


following the instructions from the other thread I did the following:



>sudo mkdir -p /Volumes/EFI

>sudo mount -t msdos /dev/disk0s4 /Volumes/EFI

got error message from Terminal :


"mount_msdos: /dev/disk0s4 on /Volumes/EFI: Invalid argument"


and from system.log:


"kernel[0]: msdosfs_mount: invalid total sectors (0)"


the System partition seems to be in bad condition, it is grayed out in the disk utility as posted above.


I didn't know what makes the System and Data partition reappeared in disk utility window... at the beginning none show up, only one MAC drive is listed, also in diskutil list report at the beginning of this post, you can see disk0s4 has "Untitled" rather than "System", as of now, Data partition works just as normal.

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User profile for user: Loner T
Loner T
User level: Level 9
59,536 points

Sep 4, 2016 8:59 PM in response to Frank-APP

Frank-APP wrote:


paragon NTFS and Texura NTFS have been uninstalled immediately after this problem detected.

These can corrupt files due to conflict between OS X and third-party drivers. Uninstalling will not undo the damage already caused.



following the instructions from the other thread I did the following:



>sudo mkdir -p /Volumes/EFI

>sudo mount -t msdos /dev/disk0s4 /Volumes/EFI

got error message from Terminal :


"mount_msdos: /dev/disk0s4 on /Volumes/EFI: Invalid argument"


and from system.log:


"kernel[0]: msdosfs_mount: invalid total sectors (0)"


the System partition seems to be in bad condition, it is grayed out in the disk utility as posted above.

You need to mount disk0s1, not disk0s4. We need to check the EFI partition for a Microsoft directory.



I didn't know what makes the System and Data partition reappeared in disk utility window... at the beginning none show up, only one MAC drive is listed, also in diskutil list report at the beginning of this post, you can see disk0s4 has "Untitled" rather than "System", as of now, Data partition works just as normal.

You will need to run chkdsk on your C: drive. If that does not correct the problem, then SFC is needed. Manual modifications to disk0s4 or disk0s5 can make things worse. Disk0s4 should only be manipulated using SFC and chkdsk and supported commands. Do not use any OS X utilities to manipulate either partition.

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User profile for user: Frank-APP
Frank-APP Author
User level: Level 1
4 points

Sep 5, 2016 10:10 AM in response to Loner T

none of combo works 😟 I think it is due to problems with the partition, and the same problem causes the System partition not shown in Finder.


At the beginning of this problem, the two NTFS partition were not even shown in "disk utility", but somehow they showed up later. Now, the System partition is in gray, with 0KB available, and not mountable.

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bootcamp partition no longer mountable

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