macbook – Score showing FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF, tried to fix it but error

This is my first article on a website such as StackExchange, as such I apologize if my question is not asked correctly or if it is not presented clearly.

I have a 2015 MacBook Pro with Mojave. Two days ago, after installing Ubuntu as a dual-boot, I lost access to my Macintosh HD partition.

/ dev / disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme * 251.0 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: FFFFFFFF-FFFF-FFFF-FFFFFFFFFFFFF 211.9 GB disk0s2

3: 0FC63DAF-8483-4772-8E79-3D69D8477DE4 29.9 GB disk0s3

4: Linux Swap 8.9 GB disk0s4

/ dev / disk1

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme * 1.3 GB disk1

1: Apple_partition_map 30.7 KB disk1s1

2: Basic system Apple_HFS OS X 1.3 GB disk1s2

/ dev / disk2

#: TYPE NAME SIZE IDENTIFIER

0: untitled * 5.2 MB disk2

/ dev / disk3

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk3

/ dev / disk4

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk4

/ dev / disk5

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk5

/ dev / disk6

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk6

/ dev / disk7

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk7

/ dev / disk8

#: TYPE NAME SIZE IDENTIFIER

0: untitled * 6.3 MB disk8

/ dev / disk9

#: TYPE NAME SIZE IDENTIFIER

0: without title * 2.1 MB disc9

/ dev / disk10

#: TYPE NAME SIZE IDENTIFIER

0: untitled * 1.0 MB disk10

/ dev / disk11

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk11

/ dev / disk12

#: TYPE NAME SIZE IDENTIFIER

0: without title * 524.3 KB disk12

/ dev / disk13

#: TYPE NAME SIZE IDENTIFIER

0: without title * 1.0 MB disk13

/ dev / disk14

#: TYPE NAME SIZE IDENTIFIER

0: without title * 6.3 MB disk14

Then I followed the procedure described in How to fix GPT, GUID, and immutable files without volume type?

After opening a terminal in Internet Recovery mode (cmd + R), I proceeded step by step:

1)

$ diskutil unmountDisk disk0

Exit:

    Disassembly of all volumes on disk0 was successful

2)

$ gpt remove -i 2 disk0

Exit:

gpt remove: disk0: Suspicious MBR in sector 0

removed disk0s2

3)

After redoing

$ diskutil unmountDisk force disk0

, I have run:

$ gpt add -b 409640 -s 413880776 -t 7C3457EF-0000-11AA-AA11-00306543ECAC -i 2 disc0

Exit:

gpt add: disk0: Suspicious MBR in sector 0

gpt add: disk0: error: no available space on the device

The partition / dev / disk0 had become:

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

start the contents of the size index

0 1 MBR

1 1 GPT Pri Header

2 32 table Pri GPT

34 6

409600 1 part GPT - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 413880776 2 MBR part 218

414290416 1552

414291968 17348608 4 pieces GPT - 0657FD6D-A4AB-43C4-84E5-0933C84B4F4F

Part 3 GPT - 0FC63DAF-8483-4772-8E79-3D69D8477DE4

489971712 263007

490234719 GPT table 32 sec

490234751 GPT Header 1 sec

Therefore, I did:
3)

    $ gpt destroy the disk0

Exit:

    gpt destroy: disk0: Suspicious MBR in sector 0

With:

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

start of the contents of the size index

0 1 MBR

1 409639

409640 413880776 2 MBR part 218

414290416 1552

414291968 17348608 4 MBR part 130

431640576 58331136 3 MBR part 131

489971712 263040

4)
I had to add each partition, but just add the first one with

    $ gpt add -i 1 -b 40 -s 409600 -t C12A7328-F81F-11D2-BA4B-00A0C93EC93B disk0

returned

    gpt add: disk0: Suspicious MBR in sector 0

gpt add: disk0: error: no main GPT header; execute create or recover

5)

    $ gpt create / dev / disk0

Exit:

    gpt create: / dev / disk0: Suspicious MBR in sector 0

gpt create: / dev / disk0: error: the device contains an MBR

6)

    $ fdisk -i -a hfs / dev / disk0

Exit:

    fdisk: can not open MBR / usr / standalone / i386 / boot0 file: no such file or directory


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

------ WARNING - UPDATE THE MASTER BOOT RECORD ------

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


Would you like to write a new MBR and a new partition table? [n] Y

And I entered 'Yes'.

7)

    $ gpt create / dev / disk0

Exit:
gpt create: / dev / disk0: error: the device contains an MBR

With / dev / disk0:

        start of the contents of the size index

0 1 MBR

1 62

63 490234689 1 MBR part 175

and if I do it

    gpt create -fp / dev / disk0

j & # 39; get

gpt create: / dev / disk0: error: no place for the backup header

I am completely lost on what I am supposed to do. Anyone could help me, please.

Thank you in advance.

macbook – Automatically change the power settings

This question made me think:

What are all the parameters you can handle with the same command line application and what are their codes?

Although I do not often lack battery, it would be nice if my Mac automatically prepares me for success. I'm using a MacBook Pro 13 "Retina early 2015 (MacBookPro 12.1).

Specifically, I look for the following switches when disconnecting the sector while being able to manually restore everything I need:

  • Change the brightness of the screen to a specific value (for example 20%)
  • Change the backlight of the keyboard to a specific value
  • Disable the screen saver (I have the air screen saver installed)
  • Disable Bluetooth
  • Mute
  • Disable localization services (I would like to be able to do this also by application)
  • Suspend specific applications (DropBox, Google Drive, Citrix, for example)
  • Enable Do not disturb (found in the original question)

And then, of course, I would like to turn them all back on when reconnecting to power.

I am certainly not an encoder, but I can follow the instructions and the application that aaplmath wrote could clearly be extended. I'm currently downloading Xcode (on a very slow connection), but how could I look for this information myself in the future?

Macbook Pro-to-iPad Pro Local Network (number of connections / devices)

We develop a video wall of iPad Pro and use an admin application to control some aspects of the features.

Questions: 1. Has anyone ever done anything like this and can they give an overview? 2. The initial tests suggest that the scope will be pretty good … thoughts? 3. Does the Macbook Pro LAN (or Mac OS) have a connection / device limit? Can we connect 32 with a high level of stability?

Thank you

Is it worth it? MacBook Pro for iMac?

Macbook Pro late 2011 15 "
Processor 2.2 i7
512 SSD
16 RAM
Graphics card: AMD Radeon HD 6750M, 512 MB
Intel HD Graphics 3000 512 MB

FOR!

iMac 2011 27 "
I5 3.1 GHz processor
4 GB of RAM
1 TB HD
Graphics card: AMD Radeon HD 6970M 1024 MB

Leaving an open photo file on MacBook Pro, then logging out, does it damage the photo?

I opened a photo file and then changed the user on MacBook. When I logged in again, the photo was still open.
Does this degrade the quality of the photo?

MacBook Pro using Bootcamp for Windows will not use all VRAM. Help me?

I have a 15-inch MacBook Pro (2015 RAM about 16 GB) with a Windows partition and I'm trying to play Resident Evil 2.

The game has a VRAM meter very convenient in the settings and indicates that I have only 0.11 GB of VRAM, not the full VRAM of my graphics card.

The card is an Intel Iris Pro Graphics 5200 processor.

It's weird because I can run Metal Gear Solid V with high settings without problems. But in the game with Resident Evil 2, it misses a lot of objects (the floor, the walls, etc.) and the objects glitter (trees, backgrounds).

I have checked with dxidiag and, indeed, it is said that I have 2160MB Approx. Total memory, 112 MB display memory (VRAM) and 2048 shared memory.

It seems that Windows can not use all available memory and I do not know why.

I have tried to directly download the graphics card driver from the Intel website, but that has not changed anything.

Anyone have an idea on how I can assign the full VRAM of my card to the Windows partition?

audio – PS4 earphones stop working on MacBook Pro after pressing the mute button

I had my PS4 headphones (the ones that came with the PS4) plugged into my MacBook Pro (model 2017 I believe) and I accidentally pressed the mute (F10) instead of lowering the volume (F11) . From now on, they do not work. I've checked the audio panel and it's not muted, reset coreaudiod, reset Mac and update it. I looked for solutions for the missing audio files, but nothing worked. I have a generic headset that works on my MacBook, but not my PS4 headphones.

MacBook Pro does not update

I recently bought a MacBook Pro and I encountered the error of WiFi connection on my new MacBook. I've updated the system and I think it will be resolved, but after that, my macbook pro will not turn on a black screen. It turns into a completely blue screen. How can I fix this error?

macbook – How to correct the problem of Bluetooth sound quality after updating Mojave?

After updating Mojave, my Bluetooth headset looks terrible and smothered. After testing several Bluetooth devices, I was able to diagnose that it was not the hardware. After research, I found:

but after testing the above, the problem has not been solved and search on the site with queries:

I did not see that asked. Is there a way to repair or fix the sound problem with Bluetooth devices in Mojave?