Исправление сломанного раздела EFI на Mac 2021
ТОП фишек в macOS — для новичков и бывалых!
Хотя это необычное явление, Mac может столкнуться с поврежденным или поврежденным разделом EFI, который обычно препятствует загрузке Mac и загрузке системного программного обеспечения Mac OS. Это обычно демонстрируется в виде экрана загрузки, который прикреплен к логотипу Apple, иногда с курсором ожидания или без него, который вращается бесконечно. Проблема EFI затем подтверждается загрузкой в режиме восстановления и запуском Дисковой утилиты, часто с другого диска.
Это не самое элегантное решение, но переустановка системного программного обеспечения Mac OS должна восстановить сломанный или поврежденный раздел EFI, или, если он отсутствует, он будет воссоздан в процессе установки ОС. Вы можете переустановить Mac OS X любым из трех способов: с помощью загрузочного диска, с помощью Internet Recovery или с помощью обычного режима восстановления, подход которого вы, вероятно, будете зависеть от
Надеемся, что вы сделали полную резервную копию Mac до того, как раздел EFI не удалось начать, в противном случае вам следует выполнить резервное копирование перед попыткой переустановить системное программное обеспечение MacOS.
Как исправить сломанные разделы EFI с помощью переустановки системного программного обеспечения
Предполагая, что вы решите просто переустановить Mac OS X и не пытаетесь отформатировать диск или делать что-либо еще, тогда будет заменено только системное программное обеспечение Mac OS и раздел EFI будет воссоздан в процессе. Другими словами, никакие личные данные, файлы или приложения не должны быть потеряны в процессе, если все, что вы решите сделать, это переустановить Mac OS X. Если вы идете по пути, отличному от простой переустановки Mac OS X, вы можете потерять данные.
Наконец, следует помнить, что иногда поврежденные или поврежденные разделы EFI могут быть индикатором надвигающегося отказа диска или какой-либо другой проблемы с жестким диском. Если вы подозреваете, что это может иметь место, вы можете попытаться восстановить диск с помощью Дисковой утилиты и запустить Apple Hardware Test на Mac, чтобы увидеть, появляются ли какие-либо аппаратные ошибки диска. Если диск выходит из строя, вам необходимо заменить его, и вы захотите сделать это раньше, чем позже, чтобы избежать потери данных.
Знаете другой метод исправления сломанных EFI-разделов? Есть какие-либо связанные советы или мысли, которые полезны? Дайте нам знать об этом в комментариях!
Question: Q: Unable to launch Apple Diagnostics
I encountered a (recoverable) kernel panic on my MBP this morning when waking my system after upgrading to Mojave from ElCapitan just a few days earlier. In order to figure out if there may be hardware issues I attempted a restart while holding the D key in order to launch Apple Diagnostics. I however was greeted by this error message:
Error: 0x8000000000000003, Cannot Load ‘EFI/Drivers/TestSupport.efi’
Question: IF I create a bootable drive will I be able to launch diagnostics or AHT from there?
MacBook Pro 15″, macOS 10.14
Posted on Apr 6, 2019 2:13 AM
Helpful answers
“Vintage» («denoting something of high quality, especially something from the past or characteristic of the best period of a person’s work» – New Oxford American Dictionary, included with macOS),
Apple’s definition of vintage:
“Vintage products are those that have not been manufactured for more than 5 and less than 7 years ago. Apple has discontinued hardware service for vintage products with the following exceptions”
The point is that Apple no longer actively supports these unless a repair is necessary and that would depend on the age and/or if parts are still available. There will never be any special “fix” for these unless the exact same problem were found on newer machines.
Rather than spending all this time complaining here, I accept the fact that my 2012 MBP will most likely not be able to run AHT and that is easily fixed by having the Genius Bar run it. Except for having to drive there, it will be quick and done at no charge.
Jun 15, 2019 8:39 AM
Well if I use the Shift key to boot into safe mode then how would I get into AppleDiagnostics? Today I actually created a bootable USB with the AHT for my MBP model per this guide: https://github.com/upekkha/AppleHardwareTest
The USD had the following contents:
It’s really strange. not sure what to do here.
I have a 2012 MacBook Pro running High Sierra and have the exact same problem. A few weeks ago I did upgrade it to Mojave but reverted to High Sierra thru Time Machine.
I also cannot run Option-D to load diagnostics over the Internet.
It must be something in the updated EFI firmware that is preventing the running of the diagnostics.
If you can figure out a way to get it working I will be very impressed.
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Very good question, I would think so, later Macs load AHT from Internet.
Safe Boot from the HD, (holding Shift key down at bootup), does the problem occur in Safe Mode?
Apr 6, 2019 11:05 AM
Well if I use the Shift key to boot into safe mode then how would I get into AppleDiagnostics? Today I actually created a bootable USB with the AHT for my MBP model per this guide: https://github.com/upekkha/AppleHardwareTest
The USD had the following contents:
It’s really strange. not sure what to do here.
Sorry, I meant to try the d key after Safe boot to clear caches then regular boot or d key boot next.
I have a 2012 MacBook Pro running High Sierra and have the exact same problem. A few weeks ago I did upgrade it to Mojave but reverted to High Sierra thru Time Machine.
I also cannot run Option-D to load diagnostics over the Internet.
It must be something in the updated EFI firmware that is preventing the running of the diagnostics.
If you can figure out a way to get it working I will be very impressed.
What happens when you reboot holding the option D key? Anything?
It can take quite awhile for this to load up.
If you need help you can post the kernels panics here in the «Additional Text» box
Also In or out of warranty you can get a free over the counter ‘Apple Service Diagnostics’ test /assessment
Make an appointment hardware issue—
Apr 9, 2019 10:00 AM
Ah yes, MBP 2012 needs an ASD, it’s pre-internet HWD, might ask for other clues on my site.
Apr 9, 2019 11:21 AM
Which is why I am fighting tooth/nails to keep it running. Fortunately the system is still humming along nicely with no apparent hardware degradation but if there are parts that are getting old and are about to break then I want to know beforehand so I can get them fixed while they are still available.
Perhaps an Apple systems engineer will have mercy with us and shed some light on this issue.
I was using my Mac to copy my WhatsApp account from an iPhone to an Android phone, but it «crashed in the middle». after some struggle I managed to finish the operation and switch of WhatsApp data.
ever since my Mac keeps crashing very often and won’t open my mail application.
apparently something went wrong in the process and I am not sure about how bad it is and more importantly how to fix.
I am enclosing copies of the various error messages I got.
any help would be highly appreciated.
MacBook Air 13″, macOS 10.15
Posted on Dec 10, 2020 6:55 AM
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I don’t know anything about transferring accounts between an iPhone and Android. I’m not sure it is possible using the method you were using.
As for the pictures of the two errors:
1) That is a common error when trying to boot the Apple Diagnostics. Apple broke this feature several years for some systems.
2) That screen with the different languages is a Kernel Panic. Without a copy of the Kernel Panic log we cannot tell what the problem may be.
3) You have APFS file system issues that First Aid is unable to repair. This means you need to make sure to have a good backup or clone. Then erase the whole physical drive before restoring from a backup or clone.
Dec 10, 2020 12:40 PM
thank you for taking the time to respond.
Dec 11, 2020 9:36 AM
thank you for taking the time to respond.
Not unless your Mac can run a newer version of macOS which may install a newer system firmware update that may resolve the issue. Part of the issue may be on Apple’s remote servers as well.
You can try looking in «/Library/Logs/DiagnosticReports» for a file beginning with «kernel» and ending in «.panic». The date & time of the file is found in between those parts of the file name. Post several Kernel Panic reports if you have them. Post the report(s) here using the «Additional Text» icon which looks like a piece of paper.
To look for possible software issues run EtreCheck and post the report here using the «Additional Text» icon which looks like a piece of paper. It is possible the file system issues are the source of the problems.
When you restore from a backup or «clone» the files are copied over to your drive which will have a fresh clean file system if it was erased. The «cloning» utilities for macOS such as Carbon Copy Cloner do not perform an identical clone at the block level so CCC just ends up «copying» the files from the clone (image or drive). I don’t use Time Machine, but I think if you have a Time Machine backup you will first need to re-install macOS and migrate your data from the backup since I’ve heard TM only recovers the main volume and not the hidden recovery partition. Here is how you erase the whole drive:
Question: Q: Cannot Load EFI/Drivers/TestSupport.efi
Hello, I tried to boot in diagnostic mode and have this error message (see question title)
I use an iMac with Mojave and it hang at boot time all the time.
I can not enter Recovery mode (CMD+R) or (OPT+CMD+R) (loading bar hang at 50%)
I also tried to boot from an external HDD (maintaining the key OPT at boot time) with Mojave OS on it, and the iMac do the same, it also hang at middle of the loading bar. (I also tried with another external HDD with High Sierra on it)
I also connected a MacBookPro with Thunderbolt câble and place the iMac in Target mode (T), I can see the files in the HDD of the iMac from my MacBook and there is still some free space on the HDD.
I did also the reset PRAM (OPT+CMD+P+R)
and for good measure did the SMC reset by unplugging 15sec the power cord.
Is there anything that I can do?
Posted on Sep 16, 2020 12:32 AM
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Apple Hardware Test (AHT)
Description
Apple computers ship with a pre-installed suite of hardware diagnostic tools, known as Apple Hardware Test (AHT). In principle you can start them by holding the d key while booting. Newer models support holding option d to load AHT over the internet. Refer to the official Apple documentation for details: Using AHT on Intel-based Macs, Mountain Lion, Mavericks and Yosemite. Apple redesigned the AHT, now called Apple Diagnostics, for Macs introduced after June 2013. Consult the reference codes to interpret the results.
If however, you reinstalled an older computer from scratch, the diagnostic tools might no longer be available. Unless you have the original disks that came with your computer, there seems to be no way to restore the AHT.
It happens that Apple provides disk images with AHT for most computers, but does not make the links publicly available. Various blogs and forums, mostly Riven by Five and MacForum.ro have gathered a list of download links. The rest were obtained by scraping http://download.info.apple.com/Apple_Hardware_Test/ for all the links of the form 0(18|22)-\d<4>-A.dmg.
Even though there’s no guarantee that this list is correct or complete, some links can come in very handy to whoever is trying to debug hardware problems.
You can use the following terminal commands to determine the model and board ID of your computer:
Download the AHT for your computer model and use the contents to restore the /System/Library/CoreServices/.diagnostics folder, then reboot while holding d to start the diagnostic tools. Alternatively you may try with a bootable USB stick, as described below. This is also the preferred way on OS X 10.11 or later, where the System Integrity Protection (SIP) no longer allows writing to system folders.
When trying to open an old dmg you may get the error ‘legacy image should be converted’. To convert it to a newer format, open Disk Utility, in the menu Images click on Convert and select the dmg to convert and save it under a new name.
Note that there is no one-to-one correspondence between hardware model and AHT. For some models no hardware test could be found, while others seem to have multiple AHT. As the differences are not clear, feel free to try them out, to see which one works best for your hardware.
Question: Q: Cannot Load EFI/Drivers/TestSupport.efi
How do I fix this error on an iMac Model A1419
Posted on Oct 26, 2019 2:47 PM
Helpful answers
You cannot fix it. Apple has broken Diagnostic mode on some systems with the newer firmware updates on the older systems.
What problem are you having that you need to run the Apple Diagnostics?
Oct 26, 2019 7:01 PM
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You cannot fix it. Apple has broken Diagnostic mode on some systems with the newer firmware updates on the older systems.
What problem are you having that you need to run the Apple Diagnostics?
Oct 26, 2019 7:01 PM
I cannot boot up. It starts to load (white screen with apple logo, & load bar) gets 1/2 way then freezes. Running Mojave on it.
It is a 27″ iMac model A1419 ( circa 2012)
Error message: Cannot Load «EFI/DRIVERS/TESTSUPPORT.EFI
Oct 27, 2019 1:31 AM
Have you tried to start in Recovery Mode and re-install your operating system?
Oct 27, 2019 3:06 AM
This is a s far as I can get. I’ve done a reboot hold option key, it shows me the Mac & recovery drive & network log on. I’ve got on the Internet & it always just comes back to this screen.
Oct 27, 2019 7:50 AM
Try booting into Safe Mode which disables any unnecessary drivers, Startup & Login items.
What is the exact model of your iMac? You can get this information by entering your serial number here or here.
Oct 27, 2019 9:52 AM
Serial Number: C0***29N
I tried safe mode as well. Nothing😕
this is so frustrating.
[Personal Information Edited by Moderator]
Oct 28, 2019 12:34 PM