im_baalu
Level 1 (12 points)
Windows Software

Q: Re-Partitoned Macbook Pro After Repairing BootCamp Windows Stuck At Black Screen.

i have same problem as all of you guys have, wen i re-partitioned my mac then boot camp was disappeared and i followed your commands As i'm on El Capitan enabled csrutil in recovery used osx install media to boot into recovery as my recovery didn't boot and after that i followed the commands and get the message of successful repair of MBR and now i can select windows as startup disk and i can see windows(windows 10) disk in recovery but when i try to boot windows 10(clicked windows disk to enter) it stuck at black screen with blinking horizontal cursor please help i've been observing ur posts and replies to the users they were so helpful to them.

 

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

 

below are my mac responses for above commands:--

Screen Shot 2016-04-08 at 8.29.10 AM.png

 

Screen Shot 2016-04-08 at 8.30.51 AM.png

 

Screen Shot 2016-04-08 at 8.31.49 AM.png

MacBook Pro, OS X El Capitan (10.11.4)

Posted on Apr 7, 2016 8:04 PM

Close
im_baalu

Q: Re-Partitoned Macbook Pro After Repairing BootCamp Windows Stuck At Black Screen.

  • All replies
  • Helpful answers

  • by Loner T,

    Loner T Loner T Apr 7, 2016 8:26 PM in response to im_baalu
    Level 7 (24,738 points)
    Safari
    Apr 7, 2016 8:26 PM in response to im_baalu

    1. What is the year/model of your Mac?

    2. Please post the output of

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

  • by im_baalu,

    im_baalu im_baalu Apr 7, 2016 8:29 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Apr 7, 2016 8:29 PM in response to Loner T

    Macbook Pro 13In mid-2012

     

    and the output for given command

     

    Screen Shot 2016-04-08 at 8.59.12 AM.png

  • by Loner T,

    Loner T Loner T Apr 7, 2016 8:37 PM in response to im_baalu
    Level 7 (24,738 points)
    Safari
    Apr 7, 2016 8:37 PM in response to im_baalu

    Was this W10 installation an upgrade from W7/W8+?

     

    Can you follow the Re: [Help] Can't boot to windows (8.1) after resizing partition, because your current MBR points to GPT 4 as bootable disk, not GPT 5? This may not work because you may not have a BIOS/MBR installation of W10 to begin with, but this is worth a test. It only modifies your MBR, but does not change any data.

  • by im_baalu,

    im_baalu im_baalu Apr 7, 2016 8:39 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Apr 7, 2016 8:39 PM in response to Loner T

    yes it is something like upgrade i just installed windows10 over 8.1 genuine version ok will try this and will post the result back

  • by im_baalu,

    im_baalu im_baalu Apr 7, 2016 8:41 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Apr 7, 2016 8:41 PM in response to Loner T

    sorry this one i had tried y'day after this only the boot camp partition appearing in recovery menu but i was unable to boot into it as i mentioned i stuck at black screen with horizontal blinking cursor

  • by im_baalu,

    im_baalu im_baalu Apr 7, 2016 8:57 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Apr 7, 2016 8:57 PM in response to Loner T

    shall i reinstall windows over it or using installation media disk shall i reset the pc??

  • by Loner T,

    Loner T Loner T Apr 7, 2016 9:05 PM in response to im_baalu
    Level 7 (24,738 points)
    Safari
    Apr 7, 2016 9:05 PM in response to im_baalu

    The current MBR that you have will give you a black screen because there is no OS on GPT 4.

     

    Look at the last line of your Fdisk output, and compare the start/size column values to the entry which is GPT 5 in your GPT output? Do they match?

     

    When you rebuilt the MBR, you used '2 3 4' as your partition list to be hybridized, but you need to use '3 4 5' as your hybrid partition list. Windows will not boot unless you correct this.

  • by im_baalu,

    im_baalu im_baalu Apr 7, 2016 9:47 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Apr 7, 2016 9:47 PM in response to Loner T

    thanku alot brothe mistake was mine as yu said i tried by hybridizing 2 3 4 but yes brother i corrected it and hybridized 3 4 5 and now i can boot into windows but i wasn't able to boot mac recovey after 96% of progress bar with apple logo the stuck at this point also the mac partition not visible in windows explorer any solution to these two??

  • by Loner T,

    Loner T Loner T Apr 8, 2016 6:27 AM in response to im_baalu
    Level 7 (24,738 points)
    Safari
    Apr 8, 2016 6:27 AM in response to im_baalu

    Good to see it working. The MBR has a limit of four entries. Under normal circumstances, there is a 1-to-1 mapping between GPT and MBR entries, but you have 5 GPT and 4 MBR entries.

     

    This requires one of the GPT entries to be combined with another contiguous one. In your case, the OS X and Recovery HD are combined to make it look like on MBR entry. You will not be able to see OS X as a separate volume anymore. You have only two usable MBR entries after each of your Windows and Capitan 10 entries are put in separate MBR entries.

  • by im_baalu,

    im_baalu im_baalu Apr 9, 2016 9:25 AM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Apr 9, 2016 9:25 AM in response to Loner T

    thanks a ton brother yu have so much patience to help others thanku very much. and i re installed recovery partition using script version 3.7 on net so i was able to boot recovery too and windows also working fine except the mac partition doesn't shows in windows no problem

  • by Loner T,

    Loner T Loner T Apr 9, 2016 10:19 AM in response to im_baalu
    Level 7 (24,738 points)
    Safari
    Apr 9, 2016 10:19 AM in response to im_baalu

    Please back up OS X, Windows and create a Windows System Restore point. You should also separately back up the new partition.