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Black Cursor Blinking when starting windows Bootcamp

Im having this problem and I really need help. I believe you can help me Loner T. Thank you!

Since bootcamp was not staring I found the solution you posted:

· sudo fdisk -e /dev/disk0

p

setpid 4

07

flag 4

p

write

y


After this windows is just getting stuck at boot (black screen with blinking cursor)

Posted on Mar 22, 2015 9:47 AM

Reply
14 replies

Mar 22, 2015 4:11 PM in response to Loner T

Okay. Yeah know how my problem arose. I was trying to get my Steam and League of Legends to work on my mac. And for some reason I did not have a Case Insensitive System. I would get the error, "Patcher has detected that the local file system is case sensitive" and would not play. I tried to create a case insensitive partition to play my games. Here are my results from your proposal:


diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *320.1 GB disk0

1: EFI 209.7 MB disk0s1

2: Apple_HFS Mac 105.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Apple_HFS Mac 2 23.1 GB disk0s4

5: Microsoft Basic Data BOOTCAMP 180.2 GB disk0s5


diskutil cs list

No CoreStorage logical volume groups found


sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=320072933376; sectorsize=512; blocks=625142448

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

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

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

gpt show: /dev/disk0: Sec GPT at sector 625142447

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 205648344 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

206057984 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

207327520 45196960 4 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

252524480 20639808

273164288 351977472 5 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

625141760 655

625142415 32 Sec GPT table

625142447 1 Sec GPT header


sudo fdisk /dev/disk0

Disk: /dev/disk0geometry: 38913/255/63 [625142448 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 625142447] <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: 07 0 0 0 - 0 0 0 [ 0 - 0] HPFS/QNX/AUX


Thank you

Mar 22, 2015 5:16 PM in response to luck3y

luck3y wrote:


Im not sure what the gap means between gpt4 and gpt 5.

When you installed OS X on Mac 2, the Windows partition was already there. It did two things, created disk0s4 pushing Windows to disk0s5 and then overwrote the MBR. This is an unsupported disk layout on single-disk Macs.

And I would like to keep Mac 2 unless you know how to change my Mac from case sensitive to case insensitive without having to reinstall the os or anything.

What type of information (files, directories, photos, music,...) do you have on the original Mac partition other than the OS?

Mar 22, 2015 7:48 PM in response to luck3y

1. Run the following command. This checks if the NTFS header on your BC/Windows is valid.

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

2. If it is valid, download GPT Fdisk (http://sourceforge.net/projects/gptfdisk/) and I can give you steps to create a custom MBR which will allow Windows to boot. Once it is fully functional, make a backup to an external disk formatted as NTFS. This keeps Windows safe.

3. Copy all files you need from Mac to an external disk. It can be the same disk as in step 2, but you will need a separate FAT partition to copy your files. This partition can also be OS X Case-insensitive. This keeps your OS X files safe.

4. At this point you have a choice to make.

a. The Easy option

1. Boot into Internet Recovery (Command+Opt+R - the spinning globe must show up. Use an ethernet connection).

2. Erase your internal drive. Install a clean copy of OS X using case-insensitive file system.

3. Restore your Mac files from step 3.

4. Install Windows using BCA with a partition slightly larger than the current size.

5. Restore Windows.

6. If necessary, use GPT Fdisk to create a new Hybrid MBR (this is the standard BC MBR, not the custom one built step 2).

b. The Hard option (this requires work in Terminal).

1. Run Diskutil mergePartitions command and merge disk0s2, disk0s3, disk0s4.

2. Reboot and re-install OSX on this merged partition, which will be the new disk0s2.

3. This can cause problems with Windows, which can be fixed, if necessary. The primary culprit is the Recovery HD, which needs to be disk0s3 and there

is no easy method of creating disk0s3 manually.

4. Restore your files from step 3.

Test and verify OSX and Windows.


There are many variations possible to these steps, so please ask questions.


In step 1, if you do not have a valid NTFS header, you will need Testdisk (http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step) and fix Windows first. This procedure also requires GPT Fdisk from step 2.

Black Cursor Blinking when starting windows Bootcamp

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