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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Verbose Mode during startup not working on Apple Silicon

I have a Mac mini 2020 (with the Apple Silicon M1 chip). I want it to boot up in verbose mode, i.e. the details of the boot process should be logged as text on the screen during bootup. The following ...
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Problem creating a Windows 10 bootable USB on Windows, to work on a MacBook Pro

I have a MacBook Pro 2013, now with a clean SSD (no OS). I have a Windows 10 PC from which I am trying to create a bootable USB from a Windows 10 ISO file. I tried a lot of combinations and softwares, ...
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1answer
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Create an El Capitan rescue USB using a Modern M1 Mac

I am trying to rescue my dad's 2008 iMac. It is running Snow Leopard but the most recent OS it supports is El Capitan. It won't boot past a spinning progress bar on a grey screen, and will not boot ...
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My MacBook Pro 13" 2020 doesn't boot when I plug in the power adapter and the lid is closed

I want to use my MB with external hardware (Display, Keyboard, Mouse) in clamshell mode. Everything is set up to work in clamshell mode, display, keyboard and mouse are connected. I basically shut ...
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Boot stick not detected

My company provided me with a secure boot stick from ECOS which shall boot Linux on any Mac or PC when plugged-in. However, my MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports, BigSur Version 11.2....
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MacBook Pro wouldn't turn on, new charger got it on a few times but won't turn on again

I bought a Mac off eBay. Bought and installed Logic Pro X and was using it with much satisfaction until one day it stopped turning on. I took it to Mac Choice and they identified a faulty charger. I ...
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Does serverperfmode work on Apple Silicon Macs?

Is it possible to enable serverperfmode on an Apple Silicon Mac? I am using an M1 Mac Mini on macOS 11.2, and following Apple's instructions. I enabled serverperfmode=1 in the NVRAM boot-args, and ...
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1answer
29 views

How can I create a BIOS USB stick for ASUS ROG Strix X570-F in OS X?

I need to install a new BIOS for my new motherboard ASUS ROG Strix X570-F here where I need USB flashback tool and BIOSRenamer. I need flash an USB stick and then rename the file somehow but the tools ...
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1answer
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Cannot boot macOS after installing Ubuntu on dual-boot Boot Camp Windows

While installing Ubuntu on my MacBook Pro 2015, which already has Windows and macOS installed, I made a huge mistake by selecting the "install alongside Windows" option. As a result, I can ...
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Macbook Pro Water Damage - Now only boots while holding shift key. Crashes as soon as released [duplicate]

I have a 2015 Macbook Pro that had a small amount of water spilled on it. Everything seemed fine for a few days. Then it stopped booting properly and crashed after the chime but before the Apple logo. ...
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Macbook pro 2017 Internal SSD not recognized

I wanted to upgrade my internal SSD from my Macbook Pro 2017 256GB to a 1TB SSD I found online. I bought it from Aliexpress and seemed genuine. The fact is that my computer does not recognize it IN ...
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1answer
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Can't boot from Big Sur installed on a USB

I'm trying to install Big Sur on a USB so that I can boot from the separate installation on the usb. Note, I'm not trying to create an installation USB. I followed the directions here and everything ...
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1answer
30 views

Disable startup sound when turning on my Macbook M1

I am looking for a way to turn off that useless sound every time I open / turn on my Macbook. This is a Macbook Air (M1, 2020) currently on Big Sur 11.0.1 I already tried something without success: ...
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1answer
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How can I use rEFInd boot manager without an enter key?

I have a MacBook Air (11-inch, Late 2010) (it’s old I know) and I have installed rEFInd on an USB. The thing is, my return key does not work, so rEFInd is basically useless. Is there any way rEFInd ...
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Mac Firmware password suddenly appeared after moving drive

/tldr - Moved original Apple SSD to new logic board. No firmware password before, now suddenly there is - even on original board (after clean install). Sharing experience and insight from others - not ...
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Macbook Pro mid 2015 + Dell P2721Q + DP - mDP cable not booting after restart in clamshell mode

I am pretty happy with the combo I have currently but this issue drives me nuts. I am using Macbook Pro 15" mid 2015 with Dell P2721Q 4k monitor connected with DisplayPort to Mini DisplayPort ...
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My iMac gets stuck after internet recovery

Model: Late 2012 iMac OS: Catalina CPU: 3.2ghz i5 Intel something GPU: 675MX Storage: 1TB HDD Last thing I did: play TF2 It’s stuck at the progress bar. The recovery partition isn’t available. I tried ...
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Cant see my internal disk on boot manager

Iam trying to make a clear installation on my MacBook Air 2017, I already created a Boot USB, one with Transmac and one with Etcher. I only have another laptop with Windows. My Mac is showing the ...
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Why is it that when I login to my Mac there is another login that briefly shows up?

So, when I log in my cursor will be in one spot, then after I login it will switch to another spot with the same login background and prompt, but then load after that. I only type my password in once.
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1answer
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Failed OSX update and how to fix it

I have a MacBook Pro Mid 2012. Until yesterday it had High Sierra. I tried to update to Catalina with an installer I found online, but the installation brakes up every time and starts again, once the ...
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83 views

Why does updating Big Sur make my Mac start in Recovery mode?

After updating my Mac to Big Sur, every single 11.x update of Mac OS (including the update to Big Sur itself, as well as the latest to 11.2.2) ends up with restarting my Mac to Recovery mode, that is, ...
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1answer
28 views

macOS BigSur keep booting from external backup disk (made with CCC)

My Mac is on BigSur and I am using Carbon Copy Cloner to create a one on one disk which is bootable also. I have this setup running for years now and never noticed any problems – also on BigSur it ...
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Mac mini won't restart after erasure with Find My app

I recently had to erase my Mac mini (bought in 2019) using the Find My app on my iPhone. After I did, I switched on the Mac mini and tried to install macOS. However, when prompted to choose a start-up ...
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49 views

Issue with clean install of macOS on early 2015 MacBook Pro

I tried to install FreeBSD on my SSD on my mac since I was guessing they should be working, but there no drivers for macos and I decided that I should go back at Big Sur. I formatted the disk via the ...
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1answer
55 views

macOS Big Sur deadlock update

This evening my macOS Big Sur requested a restart for an "important update". After macOS reboot, I get a screen made of a background with standard Big Sur wallpaper and a mid-size centred-...
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1answer
45 views

Restart USB hubs without restarting the whole computer

I am running MacBook pro OS Catalina 10.15.7. When I unplug my USB-C modem, sometimes it will no longer work again when plugged in, even after having the computer sleep. The only solution I have ...
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2answers
148 views

Mac not bootable, save files with other mac

I am looking for a way to recover files from a Mac. Following facts: The files I want to recover are on Mac #2. I have another Mac if I need it. Mac #2 no longer turns on. It no longer boots up. It ...
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2answers
80 views

iPhone XS Max stuck in bootloop, cannot get into recovery

This issue started with a message saying that my storage space was almost full. I open settings and check storage, the estimate size does not show up. I go to photos app to delete a few photos/videos. ...
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1answer
69 views

How to get access to hidden folders from another Macintosh HD (Users/Applications)?

I need to back up the main Users folder, as well as all other data, from my main Mac (2013 13" MBP). I've gotten the dreaded UEFI-inspired flashing question mark, and tried running Disk Utility's ...
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1answer
1k views

Does a Big Sur 11.x Update kill genuine Apple SSDs in MacBook Pro 13" Early 2015?

I've heard quite a few stories of Big Sur bricking older MacBooks, but I'm not quite sure in which way precisely they get bricked (motherboard or just SSD), so question is whether the following story ...
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1answer
35 views

Reinstalling Mac OSX Lion on Locked Disk

I have a 2011 vintage MacBook Pro which is not booting at all. It gets to the gray screen with Apple logo and does not move ahead from there. I pressed Command-R at bootup to enter the disk utility ...
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MacOS Mojave Won’t Go To The Second Part Of Installation

I installed the first part of Mojave until it told me to reboot to continue and then it just went to the installer again. Is there any way to manually go to the second part of the installation? Thanks....
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20 views

Transfer Dual Boot Drive to iMac

My mid 2009 MacBook Pro (refurbished in 2014 and 2016) has stopped turning on late 2020. It had over heating issues beforehand. However, it had a fusion drive that was relatively new. It was a dual ...
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2answers
34 views

Flashing folder icon with question mark on startup of MacBook Pro

This is about a MacBook Pro Retina 2014 with Catalina. I tried to do a factory reset of the MacBook. Having backed up everything I needed (not using Time Machine, just copying photos etc. onto an ...
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1answer
55 views

Booting from a cloned Windows 10 installation

I have Windows 10 Pro installed on a external flash drive, I tried to install Windows via bootcamp but it is required to have more free space. I succeeded to install Windows 10 with VirtualBox on a ...
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1answer
114 views

Why won't my iMac boot? (com.apple.displaypolicyd exited with abnormal code: 1)

I'm using a 21.5-inch 2017 iMac with 3.6GHz i7 CPU, and Radeon Pro 560 graphics card. I'm running Mac OS Mojave 10.14.6 For the last week, the iMac will not finish booting. The progress bar gets ...
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1answer
43 views

Time Machine drive takes long time (~5 minutes) to mount on boot

My time machine backup drive (a Samsung T5, 1TB) is giving me trouble: I noticed that it takes a long time for the drive to show up on my desktop (5 minutes or so) after start or restart. The drive ...
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0answers
32 views

2015 MacBook Air stuck in reboot loop during Mojave > Catalina upgrade – any way to view logs/errors?

I'm trying to update my 2015 11" MBA from Mojave (latest patches) to Catalina (newest version of installer). I have >20GB free disk space and I'm running the installer from a USB stick created ...
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2answers
270 views

Big Sur 11.2 upgrade stuck in boot screen

My Mid 2014 MBP decided to install 11.2 Big Sur update yesterday evening. After rebooting, it stuck in the boot screen. Left it there overnight but nothing changed. Then I force-powered off it and ...
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1answer
66 views

Mac Mini won't open Startup Manager

I have recently obtained a Mac Mini second-hand from an organisation. When I power on the device it boots Windows 7, however, I'm unable to boot from a USB due to the Mac Mini not opening it's Startup ...
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1answer
32 views

Can I boot from a USB stick containing MacOS if there is an issue with MacintoshHD?

So my mac HD started playing up and then refused to work, would not boot. Tried recovery mode but it wouldn't allow me to run first aid on the Macintosh HD drive. Created a MacOS USB boot up stick by ...
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1answer
113 views

MacBook Air 2015; Login and recovery mode failed

I’ve been having problems with my MacBook Air (Early 2015). Since installing an update to 10.13.6 (From 10.13.3, I believe) the computer freezes once the progress bar fills up on the login screen. ...
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3answers
190 views

Late 2010 iMac getting quarter way in booting then turning off

Late 2010 iMac getting quarter way through booting then turning off Ok - first things first, apologies for a long post - I have lots of details about this issue. Context: As far as I can remember, ...
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1answer
35 views

Why do I have a “HD” in my bootcamp screen and not macOS or similar

I have a MacBook 12 with Big Sur. I have also a Bootcamp installation with Microsoft Windows 10. When I open the bootmenu I have the following screen: I don’t know why this label HD shows instead of ...
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1answer
26 views

Macbook Air 2017 7.1 Disk is crashed?

I have been trying to reboot my MacBook air 2017 from the disk I've used for a while. Couple of days ago my mac shutted down with a circular error sign. I've been able to boot it back with an external ...
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52 views

How to clone a MacBook Pro disk into bootable external device

I would like to clone my MacBook Pro (15-inch 2018, macOS Mojave 10.14.6), which I will call "Mac", into an external USB hard drive, which I will call "backup". I want to do this ...
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50 views

Partition disk after deleting the original partition

I have a MacbookPro 2017 running on macOS Big Sur version 11.2 and I installed Windows using Bootcamp without any errors on the first time but I was unaware of the space that was needed for this so I ...
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2answers
86 views

Used MPB 16 bricked after seller remotely erased it

My recently purchased MBP 16 (used, from eBay) suddenly crashed and upon restart, would not find the internal SSD to boot up. It would show the questionmark-folder icon flashing. After rebooting and ...
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0answers
120 views

iMac 10,1 allegedly does not support nvram, and takes longer than usual to boot. What could be the issue?

Command+Option+P+R does nothing, and executing nvram -xp and nvram -c returns the same nvram is not supported on this system This is on a clean install of Yosemite (installation of El Cap and above ...
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21 views

OSX “install to usb” wont reboot to usb during install

Trying to install OSX High Sierra on an external USB drive. (I know. Old OS) During install, the mac says it needs to restart. When it restarts, it defaults to booting from the MAC, not the USB drive. ...

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