Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

No boot - WIndows does not start - blk screen

Ciao to all.

I'm very worries about a situation started few weeks ago.

3 MacMini ( end 2014 ) 8 GB with traditional Hard Drive with installed Win7 PRO 64 Bit.

All of them worked perfectly for few month then 1 started to show black screen. The mac start but is does not recognize the WIN partition.

I opened a case in Apple and after 3 weeks I'm still waiting an answer.

Today a second one: same problem!

Also trying to re-install the WIN OS the machine show the same black screen with a pen containing the installation or a CD with Win7Pro.

Only 2 times he recognized the WIN7 installation but freeze during install

Did someone experienced something like that?

Posted on Sep 29, 2015 9:08 AM

28 replies

Oct 5, 2015 12:22 AM in response to Loner T

Brand is ATLANITIC..... my SuperDrive was broken.

We installed the 3 MacMini with this unit

Oct 5, 2015 12:47 AM in response to Loner T

The one is running has this firmware:

BOOT: MM71.0220.B01

SMC: 2.24f32

The 2 not running have B05

Loner T

Level 9

59,471 points

Oct 5, 2015 4:46 AM in response to Roberto Ballabeni

1. The B05 is not listed at https://support.apple.com/en-us/HT201518 .

2. To downgrade firmware, you will need to talk to Apple Tech Support.

3. If you want to try this, take the hard drive out from the B05 Mini, connect it to the B01 Mini, try to install Windows, and if successful, move the drive over to B05 mini and test.

Oct 5, 2015 5:08 AM in response to Loner T

1) Exactly! This is my main doubt. We are trying to change the logic board in the hope will arrive a refurbished one with a lower firmware

2) I tried with no results

3) this is another option BUT I have the suspect it will interfere with the new firmware when I will put it back.....

Tomorrow I'll let you know

Rob

Oct 7, 2015 10:56 AM in response to Roberto Ballabeni

Ciao Loner

I will update, but first let me know if you see ALL OK in this terminal view

sh-3.2# gpt -vv -r show /dev/disk2

gpt show: /dev/disk2: mediasize=500107862016; sectorsize=512; blocks=976773168

gpt show: /dev/disk2: Suspicious MBR at sector 0

gpt show: /dev/disk2: Pri GPT at sector 1

gpt show: /dev/disk2: Sec GPT at sector 976773167

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 80562688 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

80972328 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

82241864 1720

82243584 894529536 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

976773120 15

976773135 32 Sec GPT table

976773167 1 Sec GPT header

sh-3.2# Password:

sh: Password:: command not found

sh-3.2# fdisk /dev/disk2

Disk: /dev/disk2 geometry: 60801/255/63 [976773168 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>

2: AC 1023 254 63 - 1023 254 63 [ 409640 - 80562688] <Unknown ID>

3: AB 1023 254 63 - 1023 254 63 [ 80972328 - 1269536] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [ 82243584 - 894529536] HPFS/QNX/AUX

Loner T

Level 9

59,471 points

Oct 7, 2015 11:31 AM in response to Roberto Ballabeni

Please post the output of

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

Oct 8, 2015 12:10 AM in response to Loner T

Mac-mini-di-admin:~ admin$ sudo dd if=/dev/rdisk0s4 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 f0 e6 04 |........?.......|

00000020 00 00 00 00 80 00 80 00 ff 6f 51 35 00 00 00 00 |.........oQ5....|

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 60 34 86 a6 71 86 a6 f4 |........`4..q...|

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

Loner T

Level 9

59,471 points

Oct 8, 2015 6:04 AM in response to Roberto Ballabeni

The disk layout, partitioning and the header all look good. Can you check the EFI partition and see if there is a Microsoft directory in the EFI Partition?

Oct 8, 2015 6:51 AM in response to Loner T

Last news.

I attached BOOTCAMP partition to my PARALLELS 7.1 and it fixed the partition.

I hate this situation BECAUSE I do not know what happen.....and because I do not know WHAT happened before

Oct 8, 2015 7:00 AM in response to Loner T

Loner where is the EFI you mean? Inside the BOOTCAMP Volume?

When I attach BOOTCAMP volume to PARALLELS it sees another partition EFI......but from Terminal I cannot find it

Loner T

Level 9

59,471 points

Oct 8, 2015 8:35 AM in response to Roberto Ballabeni

1. Run diskutil list and you should see disk0s1, which is usually the EFI partition?

2. Using Parallels, which includes its own NTFS driver, would run chkdsk as part of its startup, which would fix any issues with the NTFS file system.

Oct 8, 2015 2:21 PM in response to Loner T

In EFI partition I did not see any Microsoft folder

InterestIng what you wrote about parallels......

Loner T

Level 9

59,471 points

Oct 8, 2015 3:31 PM in response to Roberto Ballabeni

Please check Application -> Utilities -> Console logs for any NTFS related messages.

No boot - WIndows does not start - blk screen