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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9
votes
1answer
154 views

Grub2 Reboot ISO - Similar process for Mac OS Bootloader

I'd like to add a menu entry to the MAC OS Bootloader for a Linux ISO that resides on the harddrive. I am not looking to install a 3rd party bootloader, but do this with the bootloader MAC uses by ...
0
votes
1answer
16 views

Sierra stuck at boot screen, upgrading to mojove will create new bootup files?

I am facing some issues in High Sierra . Since few days it's stuck at boot screen and load very slow, mac doesn't start even after completing the load progress bar. But when I charge it fully and ...
4
votes
1answer
205 views

How can I enter recovery mode (for Mac OS, on an iMac) remotely?

Our team administrates several Macs. To save costs (flights, etc.) in events where we have to remotely restore a system at our client location, we are trying to understand how to enter recovery mode ...
2
votes
1answer
32 views

Installing new PCIe m2 SSD on MacBook Pro 2014

I have a MacBook Pro Retina 2014 with a bad hard drive and recently found out that I can use a PCIe m2 SSD with it on macOS High Sierra. I purchased a Samsung EVO 970 and an adapter to use in the ...
1
vote
1answer
25 views

Dual booting older (2011) MBP into Windows and Linux (not macOS)

I was given a 8,2 15" MBP, and b/c its graphics won't allow me to install Mojave, I want to turn it into a dual booted Linux/Windows machine. (I'm a developer, and find myself needing to tread into ...
0
votes
0answers
28 views

MacBook Pro 2009 question mark folder screen - holding down option shows my mouse [duplicate]

My MacBook Pro 2009 (A1278) is having an issue. When I power it up it shows a blinking folder with a question mark. I have tried most of the options that I've seen, none of them showing any signs of ...
2
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0answers
32 views

I can't go back to macOS after successfully installing Win 10 from Boot Camp Assistant

I have a iMac running macOS High Sierra. I ran Boot Camp Assistant on it and was able to switch to Win 10, successfully, without any problem. I downloaded the ISO file for Win 10, and used the USB ...
0
votes
2answers
83 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,...
0
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0answers
20 views

2012 Mac Mini with Fusion Drive only Boots while Verbose Mode

I have a mac mini 2012 which only boots to completion when in verbose mode. when just normal booted it gives the fan symbol for a few seconds and then loops back around. I've done a time machine ...
1
vote
1answer
37 views

I used Boot Camp Assistant and can't boot OS X

I installed Windows 10 on my Mac using Boot Camp Assistant. When I got into Windows, it asked me if I wanted to install Boot Camp. I selected yes. Now, when I try to restart in OS X, it says "can't ...
1
vote
1answer
32 views

Howto change the Apple logo after Filevault login?

I managed to change the Apple logo that comes up before my APFS encrypted Filevault disk is accessible from... (That's a white apple on a transparent background). ... to... After logging in and ...
1
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0answers
37 views

Running bless to place boot files failed

I have just cloned the internal hard drive on a Macbook Pro 2013 to an SSD drive, but I keep getting "Running bless to place boot files failed” message if I try to boot from it. I tried entering ...
1
vote
0answers
27 views

How to restore Startup Manager Bootcamp option to point at Windows partition - GRUB overrided Startup Manager when Ubuntu installed

For getting macOS, Windows 10 and Ubuntu as boot options at start up, I: ran Bootcamp to install Windows 10. The result was macOS and Windows options available as boot options - when the option-key ...
2
votes
2answers
38 views

Macbook Pro Booting Issue

I have a Macbook Pro 15" Retina Mid 2014. Off late, whenever i put my mac to sleep and when i try to wake it up, it doesnt! I need restart it, but then it takes lot of time and just hangs at the end ...
1
vote
1answer
52 views

Mac Freezes on Launch

Mac running 10.14.5 is freezing after the login screen each time I reboot. Seeing these stange messages in /var/log/system.log that seems suspect. com.apple.xpc.launchd[1] (com.apple.CloudDocs....
3
votes
2answers
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 ...
1
vote
0answers
31 views

Screen turns black for a while after logging in

After I typed my password and the Apple logo appeared, suddenly my screen turned black for a while and after a few seconds it went back to finish its loading bar progress and logged in normally. Is ...
0
votes
2answers
554 views

Your computer is disabled. Try again in 60 minutes

I need to factory reset a MackBook Pro. Every time I start it up it takes ages to load and then I see this: Your computer is disabled. Try again in 60 minutes. I tried to restart the Mac with CMD +...
43
votes
3answers
71k views

GPU problem - Boot Hangs on Grey Screen

I found this according to my problem in this thread: Boot hangs on grey screen (even when booting from USB drive with fresh OS X install) My MacBook Pro 15" Early 2011 with AMD Radeon HD 6750M ...
2
votes
0answers
21 views

Recovery Mode can't see new drive but USB installer can

I'm having a lot of difficulty replacing a dead SSD in a 2013 macbook pro. Before the drive died the computer was running a fairly old version of OS X, seemingly Yosemite. I bought an OEM ...
0
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0answers
15 views

How to setup properly Clover EFI?

I need a little help to how to setup Clover Bootloader - to handle a dual-boot on a late 2008 unibody Mac(Intel dual-core 2GHz, 4GB). This Mac is already containing two partitions - see below - but ...
1
vote
1answer
16 views

Can't access Recovery Mode (2011 Mac Mini)

I was gifted a 2011 Mac Mini and I decided to try and get the thing up and running with a recent enough version of MacOS. When I turned the thing on, I was greeted with a fast boot to grub, indicating ...
2
votes
1answer
26 views

MacBook Pro (2011) shows flashing folder at startup but the disk is valid

I have a MacBook Pro (early 2011) and recently the laptop boots to a white screen that flashes a folder with a question mark. I know that means the laptop cannot detect an available startup disk. I ...
3
votes
1answer
79 views

SSD drive partition showing as FFFF on my MacBook Pro 2010

About three years ago I replaced my original hard disk on my 2010 MacBook Pro with SSD drive to make the system run faster. It did work fine until now. Regrettably I'm in this position now as my ...
2
votes
1answer
23 views

Reinstall macOS on Ubuntu MBP

After an update broke my 2015 MBP, I installed Ubuntu 18.04 on it (via USB). Now I want to go back to MacOS. When I boot into recovery mode (cmd+optn+R), I reach the usual menu of options. When I ...
0
votes
1answer
975 views

Run Python Script on computer boot

How can I create a python script that runs when the computer boots? I know to get it to run on login I can turn it into an app and add it to a as a startup item in settings, but I need it to run once ...
4
votes
1answer
9k views

How to use Boot Camp Assistant to create a dual OS X, Ubuntu system?

I would like to use Boot Camp Assistant to partition my HD, reserving around 30 GB for Ubuntu. I would then have a dual OS X Yosemite and Ubuntu Linux system. This used to be fairly easy. Boot Camp ...
1
vote
0answers
14 views

How do I install El Capitan and ParrotSec dual-boot? (without Kernel Panics)

ParrotSec was installed on this machine and it was running fine - meanwhile I could not reach it from Grub2 because if I chose MacOSX-32bit/MacOSX-64bit it popped back a Kernel Panic. On the other ...
2
votes
1answer
66 views

No install location available in Mac Internet Recovery

I tried to start my Mac & a folder with a question mark appeared. I researched on Google and discovered it was a problem with the Boot partition. I saw how to fix it. I used Opt ⌥ while booting ...
0
votes
0answers
40 views

MacBook Pro late 2013 (Model: A1502) won't boot or respond to any Input

I have a big problem with my MacBook Pro late 2013 it does not boot or light up in any way. Current behavior The only reaction that I get is, when I connect it to the powercord and start with the ...
0
votes
1answer
24 views

Macbook stuck at login screen

My macbook is stuck on the login screen after entering the password. I've been using this MBP for the past 4 years and it's been slowing down of late. However, I'm now having trouble logging in to my ...
1
vote
0answers
56 views

Getting the “prohibitory” symbol on startup

I have a mid-2004 PowerMac G5 that until recently was running fine. It had OS-X 10.3.5 installed. At one point the screen froze, no mouse, no keyboard. I powered it down and back up again. That's ...
1
vote
1answer
25 views

MBA 2017 won't boot up in macOS, but will in Ubuntu

A few days ago my spouse's MBA started showing problems. At first it wouldn't turn on at all, showing an orange indicator on the MagSafe charger. After resetting the SMC a couple times and letting it ...
4
votes
3answers
61 views

MacBook Pro 15" 2008 freezes with colorful screen

Starting a few days ago my Mac froze mid usage, was using Chrome when it did it. I got all these crazy colors everywhere, and it froze. I turned off the power, waited a few, then turned back on. It ...
1
vote
1answer
21 views

MBA (2013-15?) wont boot from macOS boot stick

A friend of mine somehow managed to delete his internal drive including the recovery partition while trying to reset his MacBook to factory settings. Now when trying to boot up the MBA only displays ...
1
vote
1answer
3k views

iMac (mid 2011, OS X 10.12) gets stuck on white screen on boot, all DIY options exhausted?

iMac (mid 2011, running OS X 10.12) gets stuck on white screen (after playing the chime sound and displaying the Apple logo and progress bar) when I try to boot normally boot in safe mode (holding ...
1
vote
0answers
62 views

MacBook Pro 13" Mid-2010 - upgrade HDD to SDD with intermittent Prohibitory sign

Good morning folks, I can't wrap my head around this one. I recently upgraded a failing 250 GB HDD to a 1 TB SSD and transitioned the data using a hard drive duplicator. When starting from a cold ...
1
vote
0answers
18 views

How do I prevent repeated iCloud logins when switching boot disk?

I've several different APFS bootable volumes. When I restart, and switch from MacOS 13 to 15, or back to 13, after I log into my user account, I'm asked to re-authenticate on iCloud. It seems that ...
2
votes
2answers
787 views

“No administrator was found” in Startup Security Utility

My friend got a new MacBook Pro from office, later on he resigned and in a hurry erased the "Macintosh HD", now we are trying to install Mojave using Bootable USB but it won't allow because "External ...
1
vote
0answers
101 views

How to get DMG file for making macOS USB on Windows PC?

I saw this discussion and updates on StackExchange on making macOS USB on Windows. I'm unable to comment there, so I'm posting a new question. I have been trying everything from that page, but as of ...
9
votes
4answers
14k views

Single-User-Recovery-Mode on High Sierra 10.13.6

Before the High Sierra update to 10.13.6 I was able to boot in single-user-recovery mode by holding Cmd-R-S at startup, but after the latest software update booting while holding Cmd-R-S just enters ...
15
votes
8answers
431k views

How do I create a Mac bootable USB drive using Windows?

My MBA 2012 with OS X 10.9.4 Mavericks won't boot anymore - it simply freezes after the initial jingle. I already tried resetting NVRAM and SMC, but to no avail. I don't have any time machine backups. ...
0
votes
1answer
17 views

Macbook shut itself down during sleep and won't boot unless leave it for a few days

model: macbook 13'3 with retina display (2013 late autumn) OS: 10.10.5 symptons: The macbook shut itself down while I put it to sleep with amost 60% battary left; Won't turn on by pressing power ...
0
votes
1answer
31 views

Can't boot from USB or reset PRAM/NVRAM on mid-2006 iMac

I got a free mid-2006 iMac from a friend, and while it boots to the login screen, all the user accounts are password-protected, so I've decided to try reinstalling Mac OS X Leopard. I created a ...
1
vote
0answers
26 views

Mac boot partition FFFF (High Sierra) [duplicate]

I know many people have had similar kind of issues and I tried to fix this with the answers I found but with no luck. Device: iMac 27" mid 2011 OS: Latest High Sierra (I think the recovery mode is ...
2
votes
1answer
4k views

How to check if a Firmware Password is enabled in OS X?

I do not know how to check if Firmware Password which prevents changing the OS Startup Disk options is enabled on my Macbook Air 2013-mid with El Capitan 10.11.4. How to check if Firmware Password ...
4
votes
1answer
47 views

Cloning macs within a context of no internet access

I'm shipping a project which my client (the army) wants to run on new MacMinis2019, which they, being less tech saavy consider a whole (the mac with all the software and configuration installed on it ...
3
votes
2answers
229 views

MacBook Air not booting, Boot loader not available, Internet recovery not available

Recently I tried to factory reset my Mid 2012 MacBook Air. In order to do that: I booted into Recovery mode with Command + R. Then navigated to Disk utility and Erased Macintosh HD. Then I restarted ...
1
vote
0answers
31 views

Problems with bless tool

The computer is an early 2015 13" MacBook Pro. Two weeks ago we sent my spouses 15" in for battery recall, and bought an OWC Aura Pro to replace my internal 1GB SSD (we SuperDuper'd her 15" MacBook's ...
1
vote
1answer
124 views

How to stop macOS updates from taking over the rEFInd boot manager? [duplicate]

I have rEFInd installed on the EFI partition of my 2015 MacBook Air. Every time I update macOS, it ends up taking over the bootloader and resetting it to using the macOS operating system. Afterwards, ...