amj.62
Level 1 (8 points)
Windows Software

Q: Bootcamp Boot Repair Partition to be fixed

Hi

 

Here are the outputs in this order:

 

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

 

/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_HFS Macintosh HD            250.1 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:                  Apple_HFS Untitled                148.1 GB   disk0s4

   5:       Microsoft Basic Data BOOTCAMP                101.0 GB   disk0s5


No CoreStorage logical volume groups found


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

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

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

gpt show: /dev/disk0: Sec GPT at sector 976773167

      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  488385008      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  488794648    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  490064184  289181384      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  779245568     262144        

  779507712  197265408      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  976773120         15        

  976773135         32         Sec GPT table

  976773167          1         Sec GPT header


Disk: /dev/disk0 geometry: 60801/255/63 [976773168 sectors]

Signature: 0xAA55

         Starting       Ending

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

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

1: EE    0   0   2 - 1023 254  63 [         1 -  488794647] <Unknown ID>

2: AB 1023 254  63 - 1023 254  63 [ 488794648 -    1269536] Darwin Boot

3: AF 1023 254  63 - 1023 254  63 [ 490064184 -  289181384] HFS+       

*4: 07 1023 254  63 - 1023 254  63 [ 779507712 -  197265408] HPFS/QNX/AUX

MacBook, OS X El Capitan (10.11.6), (13-inch, Mid 2010)

Posted on Oct 1, 2016 11:55 PM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (24,738 points)
Safari
A:

Yes, these are the correct steps.

Posted on Oct 2, 2016 8:32 AM

Close
amj.62

Q: Bootcamp Boot Repair Partition to be fixed

  • All replies
  • Helpful answers

  • by Loner T,

    Loner T Loner T Oct 2, 2016 7:39 AM in response to amj.62
    Level 7 (24,738 points)
    Safari
    Oct 2, 2016 7:39 AM in response to amj.62

    The Untitled partition is formatted as HFS, which is read-only from Windows. If you want to read-write, run the following command and post it's output.

     

    diskutil eraseVolume fat32 "SHARED" disk0s4

     

    Now test read-write capability.

  • by amj.62,

    amj.62 amj.62 Oct 2, 2016 7:57 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Oct 2, 2016 7:57 AM in response to Loner T

    Started erase on disk0s4 Untitled

    Unmounting disk

    Erasing

    4096 bytes per physical sector

    /dev/rdisk0s4: 289110720 sectors in 4517355 FAT32 clusters (32768 bytes/cluster)

    bps=512 spc=64 res=32 nft=2 mid=0xf8 spt=32 hds=255 hid=490064184 drv=0x80 bsec=289181384 bspf=35296 rdcl=2 infs=1 bkbs=6

    Mounting disk

    Finished erase on disk0s4 SHARED

  • by Loner T,

    Loner T Loner T Oct 2, 2016 8:00 AM in response to amj.62
    Level 7 (24,738 points)
    Safari
    Oct 2, 2016 8:00 AM in response to amj.62

    Now can you see this partition in both OS X and Windows? If you can, try to write a file from one OS and update from the other and test.

  • by amj.62,

    amj.62 amj.62 Oct 2, 2016 8:01 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Oct 2, 2016 8:01 AM in response to Loner T

    Windows partition won't boot now

  • by Loner T,

    Loner T Loner T Oct 2, 2016 8:11 AM in response to amj.62
    Level 7 (24,738 points)
    Safari
    Oct 2, 2016 8:11 AM in response to amj.62

    Disk Utility seems to have overwritten your MBR when the "SHARED" volume was formatted as FAT32. Please post the output of

     

    sudo fdisk /dev/disk0

     

    If you see an MBR which does not match 3 4 5 layout, can you recreate it and test?

  • by amj.62,

    amj.62 amj.62 Oct 2, 2016 8:06 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Oct 2, 2016 8:06 AM in response to Loner T

    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 -  976773167] <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     

  • by Loner T,

    Loner T Loner T Oct 2, 2016 8:11 AM in response to amj.62
    Level 7 (24,738 points)
    Safari
    Oct 2, 2016 8:11 AM in response to amj.62

    As expected, can you recreate the MBR with 3 4 5 and test?

  • by amj.62,Helpful

    amj.62 amj.62 Oct 2, 2016 8:32 AM in response to amj.62
    Level 1 (8 points)
    Windows Software
    Oct 2, 2016 8:32 AM in response to amj.62

    So I need to redo the steps from the post I first posted in?

     

    1. Sudo gdisk /dev/rdisk0
    2. P  (Print list of parts)
    3. R  (Recover)
    4. O (print current Hybrid MBR)
    5. H (chooses Hybrid)
    6. Partitions numbers to be hybridized: 3 4 5
    7. Y  (Good for GRUB question)
    8. N  (part 2 boot flag)
    9. N  (part 3 boot flag)
    10. Y  (part 4 boot flag make NTFS bootable partition)
    11. O  (print current Hybrid MBR)
    12. W (Write the new MBR)
    13. Y (Yes! write the new MBR)
    14. Reboot

  • by Loner T,Solvedanswer

    Loner T Loner T Oct 2, 2016 8:32 AM in response to amj.62
    Level 7 (24,738 points)
    Safari
    Oct 2, 2016 8:32 AM in response to amj.62

    Yes, these are the correct steps.

  • by amj.62,

    amj.62 amj.62 Oct 2, 2016 8:32 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Oct 2, 2016 8:32 AM in response to Loner T

    You, my friend, are a genius! Thank you for all your help - everything works including the previously unusable partition

  • by Loner T,

    Loner T Loner T Oct 2, 2016 8:39 AM in response to amj.62
    Level 7 (24,738 points)
    Safari
    Oct 2, 2016 8:39 AM in response to amj.62

    Please remember to back up OS X, Windows and your SHARED partition regularly. Create a Windows System Restore point for future recovery.