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Helpful answers
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Jul 30, 2015 10:10 AM in response to MrShady5721by Loner T,Please post the output of the following Terminal commands from the OSX side?
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.
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Jul 30, 2015 10:55 AM in response to MrShady5721by Loner T,These commands will show the current partition state of your disk.
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Jul 30, 2015 11:40 AM in response to MrShady5721by Loner T,Your GPT output looks reasonable.
Please also run the following command (this shows the Windows NTFS header, if available).
sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C
The commands should individually produce output similar to the following...
diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 741.7 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data rMBPBCMP 258.0 GB disk0s4
diskutil cs list
No CoreStorage logical volume groups found
sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=1000555581440; sectorsize=512; blocks=1954210120
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 1954210119
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 1448624648 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
1449034288 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
1450303824 1712
1450305536 503904256 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1954209792 295
1954210087 32 Sec GPT table
1954210119 1 Sec GPT header
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 121643/255/63 [1954210120 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 54 16 [ 409640 - 1448624648] HFS+
3: AB 1023 54 17 - 1023 60 39 [1449034288 - 1269536] Darwin Boot
*4: 07 1023 87 51 - 1023 238 3 [1450305536 - 503904256] HPFS/QNX/AUX
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Jul 30, 2015 12:07 PM in response to MrShady5721by Loner T,Please post the output of
sudo fdisk /dev/disk0
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Jul 30, 2015 12:18 PM in response to MrShady5721by Loner T,The following steps correct the MBR entry #4 which is used by Apple Bootmanager and System Preferences to allow Windows to come up.
Please ignore the i386 MBR error message, but not any others.
sudo fdisk -e /dev/disk0
p
setpid 4
07
flag 4
p
w
y
Now reboot your Mac and test.
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Jul 30, 2015 12:41 PM in response to MrShady5721by Loner T,1. Did you use sudo fdisk -e /dev/disk0 ?
2. You cannot type fdisk inside fdisk.
3. Type 'p'.
4. Type 'w'
5. Type 'y'.
Post the output of sudo fdisk /dev/disk0.
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Jul 30, 2015 1:19 PM in response to Loner Tby MrShady5721,I tried what you said, it still didn't work.
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Jul 30, 2015 1:20 PM in response to MrShady5721by Loner T,Post the output of sudo fdisk /dev/disk0
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