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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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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82 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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1answer
487 views

2016 MacBook Pro won't get past the Login Screen

My laptop running 10.13.6, has been working great without any issues until I restarted it on Monday. After I logged in, it got stuck on the loading screen and displaying a loading icon for over an ...
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1answer
405 views

MacBook pro stuck in a loop after booting

yesterday i turned off my computer as usual nothing strange yet ive noticed that it get so hot lately ( I figured out later that it’s due to dirt in fan , i cleaned it ) ; then today morning computer ...
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3answers
17k views

Keyboard and touchpad are not working when booting from live USB

I have a MacBook Pro (mid 2017, 13", no Touch Bar) and I want to create Linux live USB. However, keyboard and trackpad are not working when I'm booting Linux OS from live USB. I'm able to select EFI ...
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0answers
131 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 ...
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1answer
417 views

Can't boot to Mac OS volume after Bootcamp Windows install

I've installed Windows 10 with Bootcamp on a new iMac with Mojave. Now I can't boot to MacOS volume. 1) Bootcamp tool in Windows don't see volume as bootable. 2) Option click on restart don't show ...
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1answer
451 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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3answers
3k views

Green screen while starting up MacBook Pro

For last two three days I have been experiencing this problem. My MacBook Pro looks like this while booting up: But after running for 30 or 40 min this thing goes normal, no problem at all after that ...
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1answer
935 views

Fix boot loop of macOS updater

The latest macOS 10.13.2 update apparently didn't install well on my MacBook Pro 13" with Touchbar. On every boot the system loads the update installer but gives then an error message that the ...
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2answers
624 views

Mojave 59 second hang

About two weeks ago, my Mac started hanging on boot. It has been driving me crazy. Today I looked at the logs in /var/logs/system.log and on every boot I can see a 59 - 60 second hang, exactly. And ...
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0answers
1k views

Installing Mac OS X 10.3/10.4 from USB

I have a PowerMac G4 (AGP) with a working copy of Mac OS 9.2, and a corrupted copy of OS X 10.3. I would like to either reinstall Panther, or upgrade to Tiger. The catch is that for several reasons I ...
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2answers
8k views

MBP boot stuck at 100% loading screen

For a day now i can't boot my Mac El Capitan. It halts on this screen: What I tried: NVRAM reset CommandR Disk Utility checked SSD, I can launch Terminal and browse the files on SSD Reinstall OSX; ...
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3answers
530 views

Bootcamp: My Mac Only Boots into macOS No Matter What Partition I Choose

I have a 2017 Macbook Pro 15 inch running 10.13.5 and a bootcamp partition of Windows 10. I cannot boot into windows unless I select the windows partition from system preferences and restart from ...
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1answer
553 views

What would be the cleanest method of converting my APFS macOS partition back to HFS+?

After installing High Sierra when it was released, I was initially happy with APFS and gave no care to its relative novelty. Recently I've been using Linux, macOS, and Windows, and having to reboot ...
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1answer
408 views

MacBook Pro 9,2 can't read an SSD with a macOS High Sierra OS

Good day everyone. I have a Macbook Pro 9,2 that can't read an SSD that has a macOS High Sierra installed on it. For the background context, a friend gave me her Macbook Pro for me to retrieve the ...
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1answer
366 views

macOS cannot boot. How can I add trailing loader space?

I am running El Capitain on a MacBook Pro and I decided to add a Ubuntu dual boot to the system. To do this I installed rEFInd, partitioned 100GB for the linux file system, partitioned 2GB for the ...
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1answer
512 views

Powering off/crashing during startup MacBook Pro mid 2009

I have a MacBook Pro mid 2009 that crashes during startup after the chime and once in a blue moon gets as far as the login screen before crashing. Crashes during safe reboot or recovery reboot too ...
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1answer
327 views

Apple_Boot “Boot OS X” partition and Fusion Drive

I recently had an 10.13.4 update problem and while trying to fix it I ended up "corrupting" completely my "Boot OS X" partition files. while my Fusion drive partition was updated correctly to 10.13.4, ...
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1answer
778 views

Boot Camp Assistant stuck on creating partition due to EFI formatted as NTFS

Boot Camp Assistant is stuck on ‘create a partition’. I have followed the guide as answered in the question Boot Camp Assistance is stuck on create a partition? but it didn't work after step 8. After ...
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2answers
2k views

Macbook Pro Won't Boot off of USB Flash Drive

Model MacBook Pro 2010 6,2 OS X version Yosemite 10.10.3 I used createinstallmedia to format and create an install USB stick. This step went fine. Command used was: /Applications/Install\ OS\ X\ ...
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1answer
304 views

Can't boot High Sierra from my SanDisk SSD

A couple of weeks ago my MacBook Pro 8,1 early 2011 with a SanDisk 256 SSD wouldn't boot. I have ran the Apple Hardware test many times and everything checks out fine, but even when I restore from the ...
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1answer
2k views

Internal SSD Drive Partition Map Errors

So far all good: My MacBook Pro internal drive (APPLE SSD SM1024G) has been partitioned for a while with two bootable disks: Macintosh HD (≈900GB) - Mac OSX Extended Journaled, FireVault Encrypted ...
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1answer
289 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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1answer
1k views

Startup Disk full - Read-only- cannot boot Mac Mini

I'm at my wits end with this issue. Hours of searching various forums have produced glimmers of hope, but nothing works. First - mea culpa - I have only myself to blame. Short Version: I wiped my ...
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1answer
1k views

Black screen when booting into Mac , external monitor works

I've Macbook Pro (Reina Mid 2016) , Graphics: Iris Pro . I tried to install windows 10 using Boot Camp , it seemed to work. I was able to boot into windows.It worked for about 30-40 minutes and ...
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1answer
352 views

iPhone 6, iOS 11 boot loop/restore bar loop

I have a problem with my iPhone 6. It randomly went off, and when I tried to power it on again it became stuck on boot loop (Apple logo is displayed, going black, and Apple logo is displayed again) ...
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0answers
63 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
2k views

Missing Firmware Partition after NVRAM reset in MacOS High Sierra

Maybe someone can help me. Earlier today, I was working on my MBP and it wouldn't read my external flash drive, yet it read it last night before I ejected it. However, today it wouldn't find it. I ...
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1answer
571 views

Boot Camp Partition Broken after Partitioning and can't be Repaired in OS X 10.9.5 (on Macbook 13" Air - Late 2014)

I have a late 2014 Macbook Air that is running Windows 7 via bootcamp. Everything has been humming along fine until I recently made an update to partitions (via "Disk Utility" shrink size of Mac ...
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1answer
823 views

MacBook stuck on black loading screen

Today my MacBook Pro 2013 crashed so I hard reset it. Since then it boots to a black loading screen with the Apple logo and a loading bar in the middle. The loading bar progresses to around 60% then ...
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1answer
356 views

Mac Mini 2012: Cant Boot after moving SSD from external USB3 to internal SATA

I have a 2012 Mac Mini with a working High Sierra install on a SSD (APFS Volume) in an USB3 external enclosure mounted on /dev/disk2s1 according to Disk Utility After I moved that same SSD to the ...
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1answer
1k views

rEFInd is not working in macos high sierra 10.13.6 on 2018 MacBook Pro 13 inch even after proper installation

I have installed rEFInd in my mac by going into recovery mode -> open terminal -> csrutil disable -> cd "/Volumes/Macintosh HD/Users/username/Downloads/refind-bin-0.11.2" -> bash ./refind-install -> ...
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1answer
833 views

Is it possible to show verbose info on boot/respring?

I recently jailbroke my IPad mini running 9.3.5 using the Phoenix untethered jailbreak utility. I got some things to work, but I want to have verbose boot output on the startup/respring screen. Is ...
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0answers
37 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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1answer
345 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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0answers
29 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
436 views

White Screen – nothing works after NVRAM reset

I can't boot my iMac (27", late 2012) and only get to see the white screen. Nothing works, CMD+R, CMD+ALT+Shift+R, Shift, C, CMD+S, ALT … I can hear the startup chime, screen goes white and stays ...
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1answer
427 views

macOS 10.12: MacBook Pro Retina takes hours (literally) to boot

I've got a mid-2012 15" MacBook Pro Retina (MacBook10,1 - i7-361QM - 8GB RAM) running Sierra 10.12.6 (16G1036) that can take, literally, several hours to boot. I am not able to boot into recovery or ...
2
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1answer
8k views

Mac stuck at loading bar, doesn't start

My mac is stuck at a white loading bar on the start up. I start the mac up, wait and at about 40% the loading bar stops my mouse appears for a moment (i can move it) and dissappears as a rotating ...
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1answer
647 views

My iMac won't boot. Every time, no matter what mode I try booting in, it boots and stays on a blank white screen

I have a problem with my iMac. When I tried booting it, the loading bar went half way, slowed way down, then about 20-30 min later, the bar had gotten all the way to the end... But it stayed on the ...
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1answer
410 views

Macintosh Color Classic won't turn on and has weird boot chimes

I recently got my hands on a Macintosh Color Classic that is known to not work in the hope of fixing it. I have the power plugged in, keyboard, and mouse. When I flip the switch on the back, I hear ...
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2answers
1k views

Jetdrive 850 install on Macbook Pro 2015

I have a Macbook Pro 2015 that I bought used. When I bought it, OS 10.13 (High Sierra) was installed, but the SSD was failing. I bought a JetDrive 850 to replace it, and put the High Sierra installer ...
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1answer
539 views

Windows stopped working on Macbook

I was able to install Windows 7 32-bit on my Macbook 2,1 and it functioned well. Not longer than a week later, Windows Boot Manager hanged, it was stuck on countdown and I couldn't select any other ...
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3answers
11k views

MacBook Pro won't boot with new hard drive, but a different MacBook Pro will

So here are the details. My friend and I both have 13-inch Mid 2010 MacBook Pro's. Same processor and specs since they were purchased at the same time, but originally had 250 GB hard drives. His hard ...
5
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3answers
7k views

Macbook Pro (late 2011 15") is stuck in a boot loop

It boots up until the progress bar is at about 80%, then it flashes to an empty grey screen, no login window shown, no Apple logo. 30 seconds later it reboots on its own. Things I tried: reset the ...
2
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0answers
70 views

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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1answer
2k views

How to boot from ISO without USB stick or DVD on Mac OS X 10.4.11 Tiger

I would like to know a way to boot from an ISO disk image on my iMac running MacOS X Tiger. I DON'T want to use a USB stick or a DVD. Is this possible?
46
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2answers
110k views

How do I set OS X to boot by default?

I set Windows 7 to my Boot Camp. Windows 7 starts now by default in the normal boot. However, I want that OSX boots by default and Windows 7 only as I press ALT and then select it. How can you set ...
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1answer
623 views

FileVault 2 encrypted Fusion Drive on iMac doesn't boot anymore

I bought a 2017 iMac, migrated the contents of my 2012 iMac (so I have my data! ) and I wanted to erase the 2012 iMac it replaces using Disk Utility in Recovery Mode. I had hoped this would be a ...