tefosat
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Q: Can't access windwos 7 partition!

Hello;

 

Today I tried to extend the partition windows 7 in my mac-book air (El Capitan), so i opened disk utility, i reduced the Macintosh HD, and I thought this decrements will be added automatically to windows partition, unfortunately, it created a new partition! I tried to delete it, I couldn't.  I clicked this partition, then I erased it, but the partition tab is greyed! and can't access at all. Any way when I restart the mac, to access the windows, I found no windows drive in the list of choice, and only Macintosh HD and the recovery drive are in the list of choice!

 

It will be highly appreciated if you can help me to delete the extra partition I wrongly made, increase the windows size, and get my windows back

 

Sincerely Yours

MacBook Air (11-inch Mid 2011), OS X El Capitan (10.11.1)

Posted on Nov 5, 2015 4:31 AM

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

You are not supposed to type anything within the parentheses. The text is an explanation of the commands.

Posted on Nov 11, 2015 4:00 AM

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tefosat

Q: Can't access windwos 7 partition!

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  • by Loner T,

    Loner T Loner T Nov 5, 2015 5:25 AM in response to tefosat
    Level 7 (24,738 points)
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    Nov 5, 2015 5:25 AM in response to tefosat

    Can you post the output of

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

    sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C


  • by tefosat,

    tefosat tefosat Nov 5, 2015 5:19 PM in response to Loner T
    Level 1 (0 points)
    Nov 5, 2015 5:19 PM in response to Loner T

    Dear Loner;

     

    Thanks for your quick reply, but to be honest with you, I don't know how to get you what you asking for!

    With a little help I may get them.

    By the way, when I access OX operating system, I still see windows partition, and I can access the drive and open all the files there. Just I cant access the windows any more, and the extra partition I made still there!

     

    Again Thanks a lot for your help, and it will be highly appreciated if you can help me fix this problem.

     

    Sincerely Yours

  • by Loner T,

    Loner T Loner T Nov 5, 2015 5:45 PM in response to tefosat
    Level 7 (24,738 points)
    Safari
    Nov 5, 2015 5:45 PM in response to tefosat

    Go to Applications -> Utilities -> Terminal.

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

    sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C


    Triple-click each line and use Copy (Command+C) and Paste (Command+V) in the Terminal Window. The "sudo" commands will prompt you for your password. Enter it and press return. It will not be echoed back to you.



  • by tefosat,

    tefosat tefosat Nov 5, 2015 6:09 PM in response to Loner T
    Level 1 (0 points)
    Nov 5, 2015 6:09 PM in response to Loner T

    Dear Mr Loner;

     

    Here is the post; and thanks in advance

     

    Last login: Fri Nov  6 10:03:19 on ttys000

    Tawfigs-MacBook-Air:~ tefosat$ diskutil list

    /dev/disk0 (internal, physical):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *251.0 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:                  Apple_HFS Macintosh HD            200.3 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:                  Apple_HFS Dr tefo                 9.6 GB     disk0s4

       5:       Microsoft Basic Data BOOTCAMP                40.1 GB    disk0s5

    Tawfigs-MacBook-Air:~ tefosat$ diskutil cs list

    No CoreStorage logical volume groups found

    Tawfigs-MacBook-Air:~ tefosat$ sudo gpt -vv -r show /dev/disk0

     

    WARNING: Improper use of the sudo command could lead to data loss

    or the deletion of important system files. Please double-check your

    typing when using sudo. Type "man sudo" for more information.

     

    To proceed, enter your password, or type Ctrl-C to abort.

     

    Password:

    Sorry, try again.

    Password:

    Sorry, try again.

    Password:

    gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752

    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 490234751

          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  391138096      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      391547736    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      392817272   18757000      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      411574272     262144        

      411836416   78397440      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      490233856        863        

      490234719         32         Sec GPT table

      490234751          1         Sec GPT header

    Tawfigs-MacBook-Air:~ tefosat$ sudo fdisk /dev/disk0

    Disk: /dev/disk0    geometry: 30515/255/63 [490234752 sectors]

    Signature: 0xAA55

             Starting       Ending

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

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

    1: EE 1023 254  63 - 1023 254  63 [         1 -  490234751] <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     

    Tawfigs-MacBook-Air:~ tefosat$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

    00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    *

    00000200

    Tawfigs-MacBook-Air:~ tefosat$

  • by Loner T,

    Loner T Loner T Nov 5, 2015 6:21 PM in response to tefosat
    Level 7 (24,738 points)
    Safari
    Nov 5, 2015 6:21 PM in response to tefosat

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


    Since you have an extra partition, try the command as shown.

  • by tefosat,

    tefosat tefosat Nov 5, 2015 6:23 PM in response to Loner T
    Level 1 (0 points)
    Nov 5, 2015 6:23 PM in response to Loner T

    Here is the post

     

    Last login: Fri Nov  6 10:05:36 on ttys000

    Tawfigs-MacBook-Air:~ tefosat$ sudo dd if=/dev/rdisk0s5 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 20 8c 18  |........?.... ..|

    00000020  00 00 00 00 80 00 80 00  ff 3f ac 04 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  45 42 81 00 4e 81 00 4a  |........EB..N..J|

    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

    Tawfigs-MacBook-Air:~ tefosat$

  • by Loner T,

    Loner T Loner T Nov 5, 2015 6:51 PM in response to tefosat
    Level 7 (24,738 points)
    Safari
    Nov 5, 2015 6:51 PM in response to tefosat

    Please download GPT Fdisk (http://sourceforge.net/projects/gptfdisk/) and install it. Post back when it is installed or if you into any issues.

  • by tefosat,

    tefosat tefosat Nov 5, 2015 8:22 PM in response to Loner T
    Level 1 (0 points)
    Nov 5, 2015 8:22 PM in response to Loner T

    Unfortunately, I couldn't =install it, and the file is name gdisk

     

  • by Loner T,

    Loner T Loner T Nov 6, 2015 3:56 AM in response to tefosat
    Level 7 (24,738 points)
    Safari
    Nov 6, 2015 3:56 AM in response to tefosat

    Mac Gatekeeper is disallowing the installation. Temporarily change your Security to allow from Anywhere, instal it, and then change it back to the previous setting.

     

    ELC-Gatekeeper.png

  • by tefosat,

    tefosat tefosat Nov 6, 2015 5:45 AM in response to Loner T
    Level 1 (0 points)
    Nov 6, 2015 5:45 AM in response to Loner T

    Dear Loner;

     

    Thanks for all your help.

    Already Installed. So, what is next

  • by Loner T,

    Loner T Loner T Nov 6, 2015 8:43 AM in response to tefosat
    Level 7 (24,738 points)
    Safari
    Nov 6, 2015 8:43 AM in response to tefosat

    1. Boot into Local Recovery (Command+R) during power up.

    2. Run Utilities -> Terminal.

    3. Type csrutil disable and press return/enter.

    4. Boot normally.

    5. Type csrutil status in OSX Terminal and verify that is it disabled. If still enabled, repeat.


    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 the sample 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.

    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 3 boot flag)
    9. N  (part 4 boot flag)
    10. Y  (part 5 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

     

    Here is sample Q&A for this section. Please notice the Press Enter/Return.

     

    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): 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): 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

     

    Test 1 - Does Bootcamp Volume show up in Finder?

    Test 2 - Can you see files in Bootcamp Volume?

    Test 3 - Can you select Bootcamp in System Preferences -> Startup Disk?

    Test 4 - If Test 3 is successful, select Bootcamp and Click Restart.

  • by tefosat,

    tefosat tefosat Nov 6, 2015 10:34 PM in response to Loner T
    Level 1 (0 points)
    Nov 6, 2015 10:34 PM in response to Loner T

    Dear Loner;

     

    Thanks a lot for all your help, but the last post doesn't work with me, I tried to follow your steps, so Boot into Local Recovery (Command+R) during power up., then form Run Utilities -> Terminal I Typed csrutil disable, then I pressed return/enter. finally I Boot normally. But the system stuck and keep giving me the same message (no boot drive) and asking me to insert the drive.

     

    I do have one question, If I use the recovery will it help me to delete the extra partition I made! and get back my windows! If no, so what should I do to delete the windows partition and the extra partition I made.

     

    Thanks once again

  • by Loner T,

    Loner T Loner T Nov 7, 2015 2:30 PM in response to tefosat
    Level 7 (24,738 points)
    Safari
    Nov 7, 2015 2:30 PM in response to tefosat

    tefosat wrote:

     

    Dear Loner;

     

    Thanks a lot for all your help, but the last post doesn't work with me, I tried to follow your steps, so Boot into Local Recovery (Command+R) during power up., then form Run Utilities -> Terminal I Typed csrutil disable, then I pressed return/enter. finally I Boot normally. But the system stuck and keep giving me the same message (no boot drive) and asking me to insert the drive.

     

    Did you run the Gdisk steps and rebuild the MBR? If you did, please post the output of

     

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

    tefosat wrote:

     

    I do have one question, If I use the recovery will it help me to delete the extra partition I made! and get back my windows! If no, so what should I do to delete the windows partition and the extra partition I made.

    No. Once the partition tables are invalid, you will make things a bit more harder to recover. Please rebuild your MBR first and test.

  • by tefosat,

    tefosat tefosat Nov 7, 2015 9:47 PM in response to Loner T
    Level 1 (0 points)
    Nov 7, 2015 9:47 PM in response to Loner T

    Dear Loner;

     

    OK, I will try again, but i just want to tell you this; the windows partition still in the system

    So the bootcamp, suppose to be the windows partition, and Dr tefo, is the stupid partition I created.

    So When i open the bootcamp, I can access it and open all the folders I have in this parttion (i.e., windows).

     

    in the start up disk, I can see windows partition

     

     

    So Yesterday before I take any step I open the startup disk and I choose bootcamp windows, then I restart the system, and since then

    keep giving me no boot drive, and each time I want to power on the mac, I have to press option, then I choose mac partition.

     

    Finally, with all these details, what should I do?

     

    Thanks in advance for all your help.

     

    Sincerely Yours.

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