Questions tagged [startup]

Usually referring to the startup process of a device or computer from an initial "cold" state rather than sleep or hibernation.

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Can't update boot security on new Macbook Pro

I am trying to boot from an external device and it is asking for an administrator password. The machine is new and didn't have a password so I created an admin password and it still won't allow me to ...
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186 views

I turned my iMac on, but I only see a grey blinking question mark folder

I bought a 2011 21.5" iMac in a garage sale. I pressed Command + R. Once I'm in the macOS Utility folder, I don't see the Macintosh HD. Now, I went back to macOS Utility and tried to re-install macOS ...
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561 views

Update to 10.14.1 on Mac Pro 5.1 results in black screen

I tried to update my Mac Pro 5.1 with the delta updater to 10.14.1 from 10.14. I have a Sapphire RX 580 installed. After some minutes I saw he load screen but after that the screen turned black. I ...
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MacBook keyboard doesn't respond during startup

I have had this problem for quite some time. my MacBook pro Retina early 2015 takes forever to start up.duribg startup the keyboard seems to be unresponsive to eg.cmd+alt+p+r or any other working key ...
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How can I delete all network users on startup or shutdown?

I want to run this script before any student logs into the computers daily. #!/bin/sh mv /Users/admin /admin wait $pid mv /Users/Shared /Shared wait $pid rm -rf /Users/* wait $pid mv /admin /...
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Change icons order in Startup Disk MacOS Mojave

Yesterday I installed Mojave on my MacBookPro 13'' 2015. I had Sierra before. I have 2 partitions: Macintosh and Bootcamp (Windows). Every time I went to Startup Disk or in Startup Manager (after ...
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1answer
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Every time I turn on macbook pro I get menu for choosing startup disk

Every time when I turn on my macbook pro mid 2014 I have to choose my startup disk to continue with booting. It behaves as if I am holding the option key... However, the right option key doesnt work ...
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My Mac repeatedly beeps three times on startup. What does this mean?

When I try to boot my Mac I get nothing but strange beeps. They beep as follows: BEEP BEEP BEEP [3 second pause] BEEP BEEP BEEP [3 second pause] and it continues until I power off. So far, I have: ...
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218 views

Mac not starting or going into recovery mode

My Mac (mid 2011 21.5" iMac running mac OS High Sierra 10.13.6) suddenly froze while watching a video and restarted. It now keeps on restarting. Soon thereafter, my wireless keyboard stopped working, ...
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133 views

Recovery mode not loading on MacBook (Late 2008)

For some reason, I'm not able to load recovery mode utilities on my late 2008 MacBook (running Mavericks). I've referenced the technical steps here but none of the startup keyboard sequences appear ...
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1answer
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What is normal for startup chime till Apple logo shows?

My late 2015 iMac recently started taking a very long time to go from the startup chime till the Apple logo appears - about 2.5 minutes. Between the chime and the logo, the screen was black. After ...
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781 views

How to start Internet Recovery Mode of El Capitan with multiple OS installed?

Thank you for your time. Here is my problem: A) Goal Start into Mac OS X El Capitan internet recovery mode and temporarily disable System Integrity Protection (SIP) to use (X11 functions of) ...
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3answers
1k views

Remove Startup Arduino CreateAgent on High Sierra

Recently this application was installed on my Mac. Now it runs every startup. How can I stop it ? Tries to solve: 1) search in Login Item of current user - Not found. 2) Not found in /Library/...
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1answer
5k views

Not able to select a disk to reinstall OS in safe mode

I have iMac A1418 with High Sierra on it. I had to erase entire Macintosh HD disk hoping to reinstall OS on a ‘clean’ drive. Unfortunately I’m not able to accomplish this as when I select “Reinstall ...
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2answers
3k views

MacBook Air won't power on

My MacBook Air won't turn on. I plugged in the charger and it says it's charging. When I turn it on, the light instantly turns green for a few seconds, and then it goes to amber. What's going on? I ...
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1answer
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How do you create a bootable drive on an external disk?

I have a MacPro that i want to keep on Mountain Lion, but I'd like to be able to startup off of the latest MacOS. Is there a way to create a bootable drive that uses High Sierra?
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1answer
867 views

How to prevent app from auto starting

I know there are Login Items under Users & Groups and /Library/LaunchAgents and /Library/LaunchDaemons under Library, System/Library and Users/FooUser/Library. And then there's right click on Dock ...
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Macbook startup problem. Once started is extremely slow

I have a serious problem with my Macbook pro retina 13" early 2015. Some days ago, after a normal shutdown, the Macbook did not startup anymore. It emitted the short start sound and it went back to ...
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Set the mode for next boot from the terminal

I'd like to be able to boot into the recovery mode the next time the machine boots not by using the start up key presses. I'm already logged in in normal user mode - can I set this in the terminal? ...
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How can I prevent macOS from restoring all applications after a hard reboot? [duplicate]

At least in macOS 10.13, if my iMac reboots due to a kernel panic or when a software update requires a reboot, the system restarts the applications that were running immediately before the shutdown ...
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iMac 2008 Flashing Question Mark on Startup (Tried almost everything)

I recently purchased an iMac from a local Goodwill. After talking to Apple support I was able to find out that this is a 2008 all-in-one model. Additionally, I asked for help with the "flashing ...
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Can I simply make a partition on my Mac, install an OS to it, and boot from it via Startup Manner?

On my Mac, can I simply create a new partition in Disk Utility, install an Operating System to it, such Arch Linux, and then boot from it by holding alt/option during boot (Startup Manager)?
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488 views

Why won't launchctl automatically load my plist entries?

I have put several plist entries in /Library/LaunchDaemons all configured to run at load. However, after booting, none of them load up automatically. Every other script in this directory loads ...
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Make sysctl changes at startup

I'd like to change the default smb settings at startup to remove timeouts. I have the following script; #!/bin/sh sysctl net.smb.fs.kern_deadtimer=0 sysctl net.smb.fs.kern_hard_deadtimer=0 sysctl ...
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697 views

iMac doesn‘t start up

My iMac doesn’t start up. The loading bar doesn’t fill up and then, after 10 minutes or so, it shuts down. I tried to get in the recovery mode, but there is the Macintosh HD drive grey and it says „...
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1answer
8k views

Can’t choose startup disk after wiping hard drive from OSX Utilities

I’m helping someone with their old laptop (17”, mid-2009, if that matters). I restarted with cmdR to load OSX Utilities, and I used Disk Utility to wipe Macintosh HD, overwriting it three times and ...
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Preventing a specific application from relaunching at startup?

When I reboot my mac, I have the "Reopen windows when logging back in" option checked, and for most applications it works fine. However, there's a few applications I use that behave very badly at ...
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1answer
944 views

Trouble mounting High Sierra start up disk from OS X 10.9

I have a Mac mini late 2012/2.5 GHz Intel Core i5, with 2 disks, one SSD, and a HDD. The SSD has the most recent High Sierra and the second drive OS X 10.9.5. After many attempts to force High ...
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1answer
2k views

Single user mode comes up with wrong boot disk

For some reason Single User Mode is now booting to something other than my usual HD partition: The disk has no /Users directory; fsck -fy takes only 1.7sec; df shows the root device to have only 3.9M ...
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1answer
444 views

Shortcut to boot into different startup disk

I often boot into an external startup disk. In order to do this, I need to access the Startup Manager by holding alt/option while rebooting and then selecting the disk I want to boot up into. Since ...
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Folder/Finder Startup Items: How not to open window after logon?

I'm using El Capitan at the moment, but I've had this "problem" for a long time - it's more an inconvenience, really. I have a number of network volumes in my Startup Items because I want them to be ...
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163 views

if the startup disk is copied to external drive, can that external drive be used as a startup disk?

If the startup disk is copied in its entirety to an external drive, can that external drive then be used as a startup disk?
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What affects the colour of the Startup Screen?

I've seen Macs startup with a white [very pale grey] screen & some with a black screen. random pics from interweb... What differentiates which it will be? My own machines here - 2 old Mac ...
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1answer
10k views

Macbook Pro won't start after restart (red charger icon)

So I just installed Flash and restarted my Mac, and now it won't start. It was working perfectly before that and I didn't drop it or anything. The power cable works (tried it on another Mac) so it's ...
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154 views

Run Script As A Service After Startup

Recently I am trying to figure out how to run a dotnet service after my MacOS startup. On Windows, I can install the NSSM to run the script as a service. This script will be triggered whenever my ...
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Keyboard not active in Bootcamp Manager [duplicate]

After moving to High Sierra, I realized that I can’t use the normal bootcamp preferences any more, since Windows won’t detect MacOS on the APFS volume. Apples workaround is to hold down the option key ...
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2k views

sudo trimforce disable not working

Not so long ago, my early 2013 MacBookPro used to boot in a sweet 13s. Since I updated to High Sierra, this has turned into an ugly 58s. I read here and there that the startup slownesses in high ...
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340 views

Unreliable Thunderbolt 2 startup disk

I have attempted to improve the performance of a Mid 2011 27" iMac by booting from an external Thunderbolt SSD, specifically a Transcend 256 GB StoreJet 500. It may or may not be relevant that this ...
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2answers
12k views

Triple boot macOS High Sierra, Ubuntu, and Windows without rEFInd

I currently have three OSes installed on my 2017 MacBook Air: macOS, Ubuntu, and Windows 10. I couldn't boot into Ubuntu without rEFInd, but I strongly prefer the default boot manager, because I want ...
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2answers
2k views

Mac Crashed during High Sierra Update - Won't reboot [duplicate]

My mac was turned off during the High Sierra update and now just gives me the flashing question mark when I turn it on. If I boot into recovery I can't select my startup disk because the OSX Base ...
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2k views

Sierra stuck on “Setting Up Account” for hours

Last to last night, I was upgrading my Macbook Air 13" from Sierra to High Sierra. During the installation (when the software was upgrading), the Mac was taking a lot of time, so I closed the flap and ...
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2answers
5k views

Is there a way to disable Facetime from starting?

I don't use facetime. I'd like to disable it so it doesn't automatically start following system startup. Is there a way to do this? (MacBook Pro, High Sierra)
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1answer
876 views

I need a list of MacOS app startup locations

A year or so ago, I set up (under Sierra) a shell script I wrote to launch automatically using the conditions that it required "network availability" and was to trigger on external drive mounting by ...
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2answers
2k views

High Temp at Startup after Upgrading to High Sierra

After upgrading to High Sierra (I have clean installed it), my mac (Macbook Pro 2010) needs unreasonably longer time to login. As a result, I have noticed that the temperature increases to around 100 ...
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1answer
1k views

Stuck during High Sierra installation and now no startup disk found

I was upgrading my MacBook Air from Sierra to High Sierra, but the installation failed and the last line of log window was an error about directoryd. I restarted and then came across the blinking ...
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29 views

How to Switch Startup Partition without entering password

For testing purposes I frequently want to restart my iMac in El Capitan, Sierra, or High Sierra which I have on separate disk partitions. When using System Preferences/Startup Disk, I have to enter ...
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1answer
640 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 ...
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2answers
866 views

How do I find the Apple startup chime/sounds on my computer?

How do I find the Apple startup chime/sounds on my computer? I know there has to be someway for it to be stored, but I'd just like to be able to access the file/raw binary...
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1answer
485 views

Mac does Start up sound even though volume was muted before restart

My Brothers iMac ignores that it was muted before shut down and makes the start up sound when it will be started again. This happened all of the sudden – normally you can avoid the start up sound by ...
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Bootable USBs no longer appear at startup

I recently had my Macbook (early 2015) reset after a bootloader mess up I won't get into. When I got it back I found that it would no longer show bootable USBs at startup in the boot menu even though ...