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Questions tagged [boot]

Questions about booting, the process of starting a computer and putting it into a state of readiness for operation.

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How can I create a bootable windows 10 usb installer on Mojave?

Boot Camp Assistant no longer allows to do this dd shouldn't be used for bootable sticks (see here) Using unetbootbin I can only write on FAT32 formatted USB, but that does not work (see here) How ...
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8 views

Dual CPU Mac Pro 4,1->5,1 won't boot with more than one RAM stick per processor

I was working on my dual CPU Mac Pro 4,1 (upgraded to 5,1), having removed the CPU tray to access the board behind it, and subsequently the machine was non-bootable. Following the process of building ...
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MBP 2009 mid Prohibited sign at boot and cant boot into usb ether

I Got a MBP 2009 still with DVD I installed High sierra 10.13 with the (not officially supprted but MacOS Patcher made it possible) And encrypted SSD which my Company's policy demand you to do that if ...
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1answer
19 views

Disable Apple FaceTime Camera kernel module

One day my FaceTime Camera stopped working, so I decided to reboot my MacBook. After waiting hours, MacOS didn't complete the boot process. In verbose mode ⌘+V, I can see initialization hangs with ...
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1answer
23 views

MacBook Pro won't boot from USB installer or go into recovery. Tried everything

Hi I have a MacBook Pro (15-inch, Mid 2012) that won't boot using any method. Around 6 months ago, the mac started making loud scratching sounds, but they stopped after a day or so. However, a few ...
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9 views

External hard drive APFS marked as read only, after repair does not mount at boot time

I have an external 2TB hard drive formatted with APFS connected to my 2017 iMac 27" running Mojave/10.14. Until yesterday, this external disk would be mounted during boot time and everything worked ...
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1answer
29 views

Why my Mac Mini doesn't boot with external HDD attached?

Ext HDD is 3,5" 4TB WD RED (exFAT) in USB 2.0 box with external power supply (220v) When I restart my Mac Mini (late 2012, MacOS 10.14) in 90% the boot will end on black screen (no apple loading logo,...
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Boot: Windows and MacOS can see its own OS as startup disk, only option key on boot allow to select

I installed Mojave to a MacBook Air (2015), and used bootcamp to install Windows 10 (latest SAC) as second OS followed official Apple method of BootCamp assistant. My problem is the only possibility ...
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8 views

(Mac OS) After attempting to resize partition, can't boot with windows 7

So I am using bootcamp to use windows from my mac book pro. I wanted to increase the windows disk size so I tried to resize the partition. While I was trying, I gave up and tried to cancel everything ...
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1answer
43 views

macbook mid 2010 white 13.3" running high sierra has half chance to boot

I have "Macbook (13-inch, Mid 2010)" it has white plastic case with 4GB 1067MHz DDR3 RAM and NVIDIA Geforce 320M 256MB. Model Identifier: MacBook 7,1 Boot ROM Version: MB71.003F.B00.18022149 SMC ...
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Resetting screen brightness setting in touchbar MacBook Pro during boot

Due to a series of unfortunate events, my 2018 15” MacBook Pro found itself out of battery and with screen brightness set to zero. I should also mention that I have FileVault full disk encryption ...
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19 views

How to tell the difference between SingleUser and SingleUserRecovery mode on screen?

SingleUserRecovery mode is usually achieved by holding down Cmdr s on start up. This boots the Mac into the SingleUser mode of the Recovery partition. This is either handy o needed for things like ...
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25 views

Skipping battery level screen when powering on MacBook Pro with Touch ID button

My MacBook Pro used to turn on automatically when I opened the lid. I didnt like that so I disabled that feature. Now I can manually turn on the macbook but it requires a couple button presses and a ...
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33 views

Mac mini (Late 2014) fails to restart on Mojave from external disk

I boot from an external USB SSD, Samsung T3. During a PWR/OFF PWR/ON cycle the machine boots from the correct drive, according to the selected startup drive in System Preferences. However, when ...
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50 views

Mojave 30-60 second hang on boot

I am running Mojave 10.14.3 and getting this pause in my boot. Usually boot was taking about 20-30 seconds, now it is taking between 1:20 and 1:30. I found a 57 second pause in the logs on boot but ...
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1answer
27 views

Can’t get MacBook a1181 to boot

I have two MacBook a1181’s, a black one and a white one. I bought the first one (the black one) a while ago and haven’t had any problems with it. I installed Devuan on it and everything was good. ...
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3answers
45 views

Boot macOS on Lenovo machine from hard drive of MacBook pro that is dead

I have a Lenovo system with Ubuntu installed on it. What I'm trying to do is use the Lenovo system to boot macOS that was installed on a hard drive of a MacBook Pro that died. I saw several posts ...
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1answer
26 views

MacBook Pro Internal Hard Drive dead?

Not too long ago, I tried to update my MacBook Pro to the newest OS (Mojave). I downloaded the updater etc. and started updating my software. I didn't mind, so I just let it update for itself. I came ...
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17 views

Windows 7 on late MBP 2011

I have been trying to install windows 7 on my MacBookPro 8.3 (Late 2011). All unsuccessfuly. So far I have encountered these problems: 1) I have tried installing windows 7 by creating bootable USB ...
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27 views

Mac won't boot without Startup Manager

So I have iMac 5k Late 2014 with macOS Mojave. I also have installed bootcamp Windows 10 although I'm not sure if this is relevant. For a while now I have been experiencing a peculiar issue with start ...
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32 views

Black screen with cursor & black touchbar

I have rebooted by MacBook Pro 2018 (with macOS Mojave installed). Everything went well: I was prompted for my account password and then the system started loading. Here start the bad things: control ...
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1answer
25 views

MacBook Pro 2011 with fuzzy screen won’t boot

I can’t boot into Safe Mode. Also tried recovery mode, but it won’t load. Tried internet recovery mode - no good. ☹️ I'm unsure if this is related to the fuzzy screen (see image above). I've also ...
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1answer
55 views

Single User mode (10.13.6) write locked with SIP disabled

In the light of unbricking my 2011 MBPro due to the known dGPU failure, I am following LangLangC's (great!) response/guide in GPU problem - Boot Hangs on Grey Screen; combined with some other threads ...
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56 views

Black screen on startup on iMac

My dad's iMac (2010 27" i7, https://everymac.com/systems/apple/imac/specs/imac-core-i7-2.93-27-inch-aluminum-mid-2010-specs.html) has no gray apple boot screen on startup and displays a black screen. ...
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15 views

MacBook Pro stuck on white screen

I have a MacBook Pro mid 2013. As you may have guessed from the title, it won't boot. Neither the Disk Utility boots. The only thing I can do is boot from a bootable USB (CMD + OPTION + R) with OSX ...
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1answer
41 views

Bootcamp disk not recognized, can’t get gdisk to work

UPDATE: This is for a Mac Pro (Mid-2010) MacPro5,1 with the latest firmware, 6-core 3.46 Intel Xeon, 32GB 1333 Mhz DDR3 memory. I tried the instructions on this post: Triple Boot: “Missing ...
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0answers
15 views

iMac6,1 showing multicolor after installing mac os x 10.7

It was on Os x 10.6.3 before I decided to install fresh OS x 10.7 everything was fine after the installation but when I restart the 🖥 it start showing multicolor as seen in the picture attached. I ...
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0answers
32 views

APFS volume won't boot after mouse driver install

iMac recently updated to High Sierra and at same time, boot volume migrated to APFS. Installed compatible driver for my Evoluent mouse (which did ask for a Security 'Allow") and following reboot, Mac ...
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1answer
12 views

Macbook Pro can only startup with external hard drive connected [duplicate]

Here are the facts: 13 inch, mid 2012 It gave me the grey screen with the flashing question mark folder one day, and I got an external hard to install the MAC OS X operating system like the apple ...
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1answer
34 views

MacBook startup sound loop

I have a mid 2012 MacBook Air and it is looping on startup sound, stuck on white screen. I have tried: formatting the SSD and installing the latest version of macOS Mojave resetting NVRAM and SMC ...
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0answers
24 views

Launch daemon does not run at boot, but will run when loaded by hand

I have a launchd daemon definition /Library/LaunchDaemons/homebrew.mxcl.docker-machine.plist which contains: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD ...
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0answers
34 views

Mac Pro won't Boot into High Sierra (Prohibited Sign)

I have a Mac Pro 5.1 (2010) with 3 HDDs installed. One is a 1 TB running Snow Leopard. Another one with 2 TB for file storage and a third one I have added recently (WD Gold 4 TB). I have tried to ...
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1answer
82 views

Windows 10 install on mid 2010 Mac Pro - “EFI boot” is not in startup manager

I have been working towards installing Windows 10 on my mid-2010 Mac Pro and have been using the following thread as a guide: said thread. I've formatted both my BOOTCAMP volume (where I plan on ...
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1answer
65 views

I erased an APFS Volume containing a second OSX installation (trying out Mojave) but my Mac keeps trying to boot into it

I added a Second Volume to my Main APFS Container to install and try Mojave (I'm running High Sierra). I decided that Mojave is not for me and I erased the volume from Disk Utility. My Mac still ...
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0answers
37 views

iPhone keeps restarting itself every 3 minutes

I just got an iPhone 5 from my friend. It worked well and I decided to restore it to reset it. Yet it is now restarting itself every 3 minutes so I'm trying to do a factory restore. While letting it ...
2
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1answer
144 views

Boot Camp / macOS Mojave / 3 TB Fusion drive

If I replace the current 3 TB hard drive with a compatible SSD drive, will this fix the issue with being able to load and run boot camp on my 2012 iMac? If you see the alert 'Installation cannot ...
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0answers
213 views

macbook pro stuck in boot loop - recovery mode and safe mode not working

I have a macbook pro 2015 (8gb ram, running macOS mojave) stuck in the loading screen with the apple logo and the loading bar 100% completed. I tried leaving it for long periods of time. Resetting ...
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0answers
35 views

Dual boot install of OSX and Ubuntu on my 15" Macbook Pro 2011 which already installed with Ubuntu.

My 15" Macbook Pro Late 2011 have a crooked GPU and won't finish any reinstallation of OSX. tried to verbose it in installation and it hanged in hardware validation or something that make me believe ...
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1answer
41 views

How can I troubleshoot Macbook pro 13 with touch bar model 2017 that won’t start?

I took my Mac on vacation where it was working fine. Upon return, I opened it up and nothing; no start or any sound. I tried all the tricks of soft keys but nothing. I don't understand what went ...
5
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2answers
96 views

iPhone 7 Plus takes days to turn on showing Apple logo or black screen

I’ve had this issue for months but in the last couple of days it’s got very very bad. When my phone runs out of battery it needs like 2–3 days to turn back on. At the beginning of this problem the ...
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1answer
115 views

Macbook Startup Freeze

I have a mid-2013 Macbook Air (A1466) that has been freezing/hanging during the startup process. It is running Mojave 10.14.2. This issue first began when I attempted to wake the computer from sleep ...
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0answers
28 views

Retina Pro display gets stuck on startup screen while rest of system finishes booting

I recently finished replacing the "lower half" (upper case, logic and I/O boards, battery, keyboard, and trackpad) of my mid-2012 retina pro (MacBook 10,1) with an early 2013 "lower half" that I ...
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0answers
20 views

Partitions name on startup boot selection are listed with the wrong name

I partitioned a USB hard drive as above /dev/disk4 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme ...
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1answer
129 views

Mac Internal Drive Uninitialized | Macbook Pro 13 (mid 2010)

Bit of background - the whole problem began with the mac being really slow and unresponsive. I thought it might be a good idea to wipe everything clean, and reinstall a fresh copy of High Sierra. So, ...
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Do I have enough evidence to conclude that my 2017 MacBook Air's problem is in the logic board? [duplicate]

I'm trying to revive a MacBook Air 2017 that suffered a liquid spill (diet Crystal Light on the keyboard). After a week of drying, open, in an aggressively dehumidified room, it started up and behaved ...
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0answers
38 views

iMac cannot boot from an external SSD but MacBook can

I have recently bought an SSD (Crucial MX500) and an USB enclosure (EE25-F6B). I wanted to use it instead of my internal drive in iMac(Late 2012). I tried installing macOS Mojave on it from a usb ...
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1answer
45 views

"No bootable device…” after unplanned empty battery shutdown

The MacBook Pro has suddenly shutdown (battery went out) while I am doing Boot Camp to Windows besides macOS. Now there's a big black and white message "No bootable device..." I can't do anything, I ...
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1answer
58 views

Boot windows bios from second internal drive MBP Mid 2012

I'm facing a little big problem concerning my windows partition: State of the art is, that I removed my CD-Drive and replaced it with a second SSD. Therefore I thought of moving windows 10 to one disk ...
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0answers
15 views

iMac doesn't see external bootable SSD on startup

I have an iMac 2013 with HDD and I recently upgraded it with extarnal SSD connected via Thunderbolt. It works pretty well but sometimes when I turn my iMac on, it shows a black screen with text like "...
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1answer
392 views

My external boot volume won't startup all my Macs when it should

Because of the mobility of my work I decided to create a boot volume on an external USB-C SSD so that I can run my user environment on a number of Macs (on an iMac Pro (2017) while at work, on a 15" ...