I installed windows 10 via bootcamp, without any external drives, on my 256GB ssd. I then used disk utitlity to create a shared partition by shrinking the OSX partition. After that, when I boot into windows it shows me the recovery screen. Please, help me with each step. I don't want to mess anything up.
Thanks.
MacBook Pro with Retina display, OS X El Capitan (10.11.3)
okay, i've looked into the article and found much information on the internet, but I still can't find a way to boot into the installer, on my usb. Is there another way? Whenever I boot into windows it just starts "Preparing automatic repair" and doesn't give me advanced startup options.
fyi windows says its error code 0xc000000e
You need to rebuild your BCD. It is corrupt. Use Bootrec.exe /rebuildbcd . Please see https://support.microsoft.com/en-us/kb/927392 .
How do I boot into the windows instalation usb? It doen't show up in the boot options.
If you power down and power up your mac with the USB connected and hold alt/option key, do you see the USB as a boot selection? How was this USB created?
I used diskutil to create it, and it didn't work. Now I got a friend's windows computer to create a usb boot disk using UltraISO. It booted up, and started repair.
I used command prompt to do as the intructions say:
>bootrec /rebuildbcd
Scanning all disks for Windows installations.
Please wait, since this may take a while...
Sucessfully scanned Windows installations.
Total identified Windows installations: 1
[1] C:\Windows
Add installations to boot list? Yes(Y)/No(N)/All(A): y
The requested system device cannot be found.
What's the problem?
Plus, I can't type backslash in the repair command prompt. It seems like the keyboard layout is different.
The S: (System partition) is shared with the Apple EFI partition, which must be assigned a drive letter using Windows diskpart. This is where the BCD is located.
Please see Re: Bootcamp Blue Screen winload.efi and THIS for reference.
Thanks so much, it boots normally. I hope others will use this as a good reference.
Please back up OS X, Windows and create a Windows System Restore point. You may also want to make a backup of the Microsoft tree on the EFI partition.
Hi, I'm having this same issue with Windows 10 not booting after adding a FAT32 partition to be used as a shared drive between Windows and OSX. I disabled SIP and created the hybrid MBR described above, after which tests 1-3 did not work, but test 4 does. I created a Windows installation USB drive with a friend's computer and am able to access the repair tools at startup. The results of bootrec/rebuildbcd were the same as above, however I'm stuck at assigning a letter to the EFI partition as it does not show up when using Windows diskpart.
Below are my results for diskutil list, diskutil cs list, sudo gpt -vv -r show /dev/disk0, and sudo fdisk /dev/disk0.
Any direction you provide would be greatly appreciated.
Thanks in advance!
$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage Macintosh HD 275.4 GB disk0s2
3: Apple_Boot Recovery HD 650.1 MB disk0s3
4: Microsoft Basic Data SHARED 48.9 GB disk0s4
5: Microsoft Basic Data BOOTCAMP 175.1 GB disk0s5
/dev/disk1 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +275.0 GB disk1
Logical Volume on disk0s2
51A357D4-5496-4E2C-B59A-771968A2AE74
Unlocked Encrypted
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *30.8 GB disk2
1: Windows_FAT_32 ESD-USB 30.8 GB disk2s1
$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group C9F3F01E-443A-4D4C-998D-A653B1AAD324
=========================================================
Name: Macintosh HD
Status: Online
Size: 275363176448 B (275.4 GB)
Free Space: 10919936 B (10.9 MB)
|
+-< Physical Volume 6ACD58BB-73C0-49F5-9B2E-83C695CBB1EE
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 275363176448 B (275.4 GB)
|
+-> Logical Volume Family C01AFF4E-BE06-405B-984F-43DAEBE7B701
----------------------------------------------------------
Encryption Type: AES-XTS
Encryption Status: Unlocked
Conversion Status: Complete
High Level Queries: Fully Secure
| Passphrase Required
| Accepts New Users
| Has Visible Users
| Has Volume Key
|
+-> Logical Volume 51A357D4-5496-4E2C-B59A-771968A2AE74
---------------------------------------------------
Disk: disk1
Status: Online
Size (Total): 274999934976 B (275.0 GB)
Revertible: Yes (unlock and decryption required)
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060
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 977105059
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 537818704 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
538228344 1269760 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
539498104 95441288 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
634939392 262144
635201536 341903360 5 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
977104896 131
977105027 32 Sec GPT table
977105059 1 Sec GPT header
$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 60821/255/63 [977105060 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 2 - 1023 254 63 [ 1 - 538228343] <Unknown ID>
2: AB 1023 254 63 - 1023 254 63 [ 538228344 - 1269760] Darwin Boot
3: 07 1023 254 63 - 1023 254 63 [ 539498104 - 95441288] HPFS/QNX/AUX
*4: 07 1023 254 63 - 1023 254 63 [ 635201536 - 341903360] HPFS/QNX/AUX
Was Windows installed using EFI Boot? Can you see Windows files in OS X Finder?
I installed Windows late last year and I do not recall whether or not I used the EFI boot. The bootcamp drive does show up in finder and I can see the files.
Since you have two shared partitions, do both of them show up in OS X Finder?
Can you post the output of
sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C
sudo dd if=/dev/rdisk0s5 count=1 2>/dev/null | hexdump -C
"Bootcamp" and "Shared" both show up in Finder. Bootcamp is formatted NTFS so it is read only from OS X. The shared folder is formatted FAT to be read/write from both operating systems.
$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -c
Password:
0000000 ? X 220 B S D 4 . 4 \0 002 @ \0
0000010 002 \0 \0 \0 \0 ? \0 \0 \0 ? \0 x 026 (
0000020 210 Q ? 005 200 - \0 \0 \0 \0 \0 \0 002 \0 \0 \0
0000030 001 \0 006 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0
0000040 200 \0 ) ? 026 s ? S H A R E D
0000050 F A T 3 2 ? 1 ? 216 ? ?
0000060 \0 | ? 216 ? ? \0 \0 ^ 203 ? 031 ? \a \0 ?
0000070 ? 204 ? t 006 ? 016 ? 020 ? ? 0 ? ? 026 ?
0000080 031 \r \n N o n - s y s t e m d i
0000090 s k \r \n P r e s s a n y k e
00000a0 y t o r e b o o t \r \n \0 \0 \0
00000b0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0
*
00001f0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 U ?
0000200
$ sudo dd if=/dev/rdisk0s5 count=1 2>/dev/null | hexdump -c
0000000 ? R 220 N T F S \0 002 \b \0 \0
0000010 \0 \0 \0 \0 \0 ? \0 \0 ? \0 ? \0 \0 h ? %
0000020 \0 \0 \0 \0 200 \0 200 \0 ? \a a 024 \0 \0 \0 \0
0000030 \0 \0 \f \0 \0 \0 \0 \0 002 \0 \0 \0 \0 \0 \0 \0
0000040 ? \0 \0 \0 001 \0 \0 \0 & ? ? 236 \r ? 236 |
0000050 \0 \0 \0 \0 ? 3 ? 216 ? ? \0 | ? h ? \a
0000060 037 036 h f \0 ? 210 026 016 \0 f 201 > 003 \0 N
0000070 T F S u 025 ? A ? ? U ? 023 r \f 201 ?
0000080 U ? u 006 ? ? 001 \0 u 003 ? ? \0 036 203 ?
0000090 030 h 032 \0 ? H 212 026 016 \0 213 ? 026 037 ? 023
00000a0 237 203 ? 030 236 X 037 r ? ; 006 \v \0 u ? ?
00000b0 017 \0 ? . 017 \0 004 036 Z 3 ? ? \0 + ?
00000c0 f ? 006 021 \0 003 026 017 \0 216 ? ? 006 026 \0 ?
00000d0 K \0 + ? w ? ? \0 ? ? 032 f # ? u -
00000e0 f 201 ? T C P A u $ 201 ? 002 001 r 036 026
00000f0 h \a ? 026 h R 021 026 h \t \0 f S f S f
0000100 U 026 026 026 h ? 001 f a 016 \a ? 032 3 ? ?
0000110 \n 023 ? ? \f ? ? ? ? ? 001 220 220 f ` 036
0000120 006 f ? 021 \0 f 003 006 034 \0 036 f h \0 \0 \0
0000130 \0 f P 006 S h 001 \0 h 020 \0 ? B 212 026 016
0000140 \0 026 037 213 ? ? 023 f Y [ Z f Y f Y 037
0000150 017 202 026 \0 f ? 006 021 \0 003 026 017 \0 216 ? ?
0000160 016 026 \0 u ? \a 037 f a ? ? ? 001 ? \t \0
0000170 ? ? 001 ? 003 \0 ? ? ? 213 ? ? < \0 t \t
0000180 ? 016 ? \a \0 ? 020 ? ? ? \r \n A d i
0000190 s k r e a d e r r o r o c
00001a0 c u r r e d \0 \r \n B O O T M G R
00001b0 i s c o m p r e s s e d \0 \r
00001c0 \n P r e s s C t r l + A l t +
00001d0 D e l t o r e s t a r t \r \n
00001e0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0
00001f0 \0 \0 \0 \0 \0 \0 212 001 ? 001 ? 001 \0 \0 U ?
0000200
The file headers are correct.
On the 2014 Macs, Windows can be installed using either BIOS or EFI. BIOS uses a MBR, but EFI does not. Your specific model supports creating a USB installer. Can You use BC Assistant, choose the first two options and create a USB Installer? This can be used for Windows Startup Repair.
W10 should bring up a Recovery Console if it fails to boot three or more times. Do you see a Recovery Console?
I have a USB installer created through BC Assistant. It doesn't seem to allow me to do Windows Startup Repair. However, I have a USB installer created on a friend's PC using the Media Creation Tool. It does have the Repair menu.
repair bootcamp after creating new partition
