Questions tagged [reboot]

Rebooting is the process by which a running computer system is restarted, either intentionally or unintentionally.

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19
votes
1answer
3k views

Does the command `reboot` hurt a Mac computer?

Does the command reboot (used in Terminal) hurt the computer? Because it is almost like pulling the power cord, which is not a recommended way to power down a computer.
14
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2answers
5k views

How do OS X terminal sessions persist through reboots?

Being an avid Linux user prior to buying a MacBook Pro, I typically have several terminal tabs open at any one time. In the past, crashes and reboots would generally trash my workflow, and the ...
13
votes
3answers
12k views

Rebooting machine with macOS Sierra takes very long time

Since I upgraded my Retina MacBook Pro with macOS Sierra GM (16A319), rebooting the computer takes 20-30 minutes. I select Restart... from the apple menu, everything logs out, then the Mac hangs on a ...
10
votes
13answers
169k views

How can I restart an iPhone 4S with a broken lock button and frozen springboard?

My springboard has frozen and the lock button is broken (two months out of warranty and it's not classed as a hardware failure). How do I restart the phone given that I can't access any apps or ...
10
votes
4answers
95k views

How to perform hard / cold reboot of iPhone or iPad?

I understand that when I press and release the power button on the top of my iPhone or iPad, it stays on but turns off the screen. Whereas if I press and hold the power button, a "slide to turn off" ...
9
votes
2answers
12k views

How can I make Mac OS X run a program before shutting down?

I am trying to get Mac OS X to save all my VirtualBox VMs when it reboots. I already have a script that does this, but I need OS X to run this script automatically before a reboot. When Mac OS X ...
8
votes
3answers
4k views

Rebooting a headless Mac Mini

I have an old Mac Mini on which I installed Ubuntu to be used as a test server. I completely formatted the hard disk before installing ubuntu, installation went fine and everything is working; so far ...
7
votes
1answer
10k views

How to find what cause Mac OS kernel panic?

For last times i have kernel panics at least once a day. Anyone have suggestions how i can find what cause issue and how to fix it? I have latest Yosemite updates installed. Here is latest Problem ...
7
votes
1answer
3k views

How do I know a mac needs to restart?

Is there a way to figure out from a script whether a Mac needs to reboot? A file, the presence or contents of which I could monitor perhaps? I'm looking for an equivalent to the file /var/run/reboot-...
7
votes
2answers
289 views

Cannot restart, shutdown or log out

I am on 10.14.4, the same thing was happening at least on 10.14.1. Laptop: MacBook Pro (Retina, 15-inch, Mid 2014) So the problem is if I open  "Apple Menu" in top left corner and click any of the ...
5
votes
1answer
1k views

Restart automatically if the computer freezes

There is a new option in the power management system preference to "restart automatically if the computer freezes". How does this work exactly? How can the computer check that it is frozen if it is,...
5
votes
4answers
11k views

How to force a Mac to restart without pressing the power key?

The Finder was not responding, so I control+click'd the Finder icon on the Dock and chose Relaunch… except that it didn't relaunch. Activity Monitor happened to be visible and I could see that it ...
5
votes
1answer
15k views

How to know when phone was last rebooted?

Occasionally I get the message about TouchID needing my password after reboot. Problem is, I haven't been rebooting. So I'm concerned my phone is rebooting itself in my pocket without me knowing it. I ...
5
votes
5answers
61k views

-1006F error message when trying to recover mac

my macbook pro crashed and i sent it for repairs.. so the guy installed a new hard drive but then sent it back with a screen having a flashing folder with a question mark.. so i looked at this page ...
5
votes
0answers
587 views

How to perform FileVault authenticated restart when updating OSX from AppStore?

I am aware of the authenticated restart when using FileVault 2 on OS X. Running the fdesetup authrestart command does however restart the system immediately. Now, when running the OS X Update from ...
4
votes
0answers
1k views

MacBook Pro frequently reboots

I'm going to describe the symptoms I'm seeing, diagnostic steps I've taken, then give the hardware configuration below. I would love to have any suggestions on how to fix this, or where to take my ...
3
votes
1answer
2k views

Why does my iMac reboot every day at the same time?

Every evening around 10:30, my iMac just stops and restarts. It's not a power outage because another iMac next to it (same plug) is not affected. I'm thinking maybe a service that's set to run at ...
3
votes
1answer
2k views

Remote dual boot, how to select OS to boot

I'm installing Bootcamp ( Win7 64bit if that matters ) on my Mac Mini, since you need to pick the OS to start up while booting, how can I do this remotely? Example: VNC into OSX, reboot the machine, ...
3
votes
2answers
16k views

Lion: Dock settings revert after logging out or restarting

I'm having problem with my user account in Lion. I want to remove some of the icons in the dock. Every time I sign out the dock will be "restored". Not to factory settings but always to the same ...
3
votes
1answer
929 views

How does iMazing reboot/shutdown iPhone remotely?

I was playing arround with iMazing and found out that it can reboot/shutdown my iPhone 6s without it being Jailbroken. Does anyone know what commands it uses and how I could do this myself from my ...
3
votes
1answer
491 views

Shutdown cause -62

As it says in the topic. My machine spontaneously rebooted this morning and all the logs have to show is: Shutdown Cause: -62 Only searches only lead to incomplete or deprecated (pre-OSX) lists of ...
3
votes
3answers
8k views

How to find cause of repeated reboots?

I have been having issues with my mid-2009 Mac Pro ever since I installed Mountain Lion. First it was intermittent kernel panics; I did some research and found that this is an ML bug that's triggered ...
3
votes
3answers
377 views

How do I keep my session when I reboot in OS X?

When I reboot my machine, I'd like it to reopen all my programs and windows, and put them back in the same place, after restarting. how do I do this? (I'm on 10.6, and use spaces)
3
votes
2answers
227 views

What takes place during an iPhone hard reset?

In response to an iPhone 7 freezing issue I'm having, it was suggested to try a hard reset (holding power + volume down for 10 seconds for iPhone 7 or holding power + home on older iPhones). This ...
3
votes
1answer
347 views

How to permanently disable app relaunch and window restore in Mojave on reboot?

How do I disable both the "relaunch apps after reboot" feature as well as the "reopen windows at relaunch" feature? When I reboot (be it after a hard reset or reboot command) I want to be presented ...
3
votes
1answer
702 views

Super slow browsing on rMBP until reboot

I've just experienced a couple of days of incredibly slow browsing (using Chrome mostly, but changing browser didn't help) on my home wi-fi. After trying many things like rebooting the router, ...
3
votes
1answer
1k views

Operating System becomes unstable after prolonged use

My setup uname -a prints: Darwin Jutsu.local 11.2.0 Darwin Kernel Version 11.2.0: Tue Aug 9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64 x86_64 Mac OS X Version: 10.7.3 as of this post ...
3
votes
1answer
338 views

unexpected forced logout on iMac

My iMac 24" is about 3 years old. Specs: 2.66ghz Intel Core 2 Duo / 4gb RAM / OS X 10.6.7 What happens is while I'm in the mid of using the machine, it suddenly goes back to the blue screen and ...
3
votes
1answer
487 views

No Reboot on MacPro using a new Samsung 860 EVO SSD

From the standard hard disk I can start, restart, and shutdown with no issues. From the new Samsung EVO 860 I can start and shutdown, but I can NOT restart. It freezes with a black screen. If I ...
2
votes
3answers
3k views

Can I restart my Mac remotely via screen sharing if the screen shows only linen?

I am currently in Norway. My Mac mini is in my apartment in Australia. I can access screen sharing via Back To My Mac. It connects fine, but the screen has only linen - no menu bar, no dock, no ...
2
votes
1answer
427 views

MacBook Pro 16 inch 2019 having kernel panics stating thunderbolt power on failed and now my USB-C Ports don't work unless I reboot

My MacBook Pro 16 inch, manufactured in March 2020 - running Catalina 10.15.4, will reboot randomly at times, citing a kernel panic - the full log is listed below. Moreover, my USB-C ports don't work, ...
2
votes
2answers
799 views

How to prevent reopening of all programs after power outage

When shutting down or logging out regularly, there is an option to reopen, or not, all the programs and their respective windows upon logging in again. That option for me is unchecked, and the OS ...
2
votes
1answer
110 views

How can I stop applications from preventing restarts?

I have some applications that routinely prevent restarts from happening correctly (most often iTerm2 and Slack, though others participate as well). When I request a Restart, these applications will ...
2
votes
1answer
101 views

Apple Watch face blank

I mistakenly unpaired my Apple Watch from my iPhone. Now the voice over on my watch is on, screen curtain is on, but my screen is blank. I don't know which button to press and I have been trying to ...
2
votes
1answer
3k views

Reboot from the command line (stuck processes)

I started a remote reboot of my machine but a couple of stuck processes are hanging the reboot. login with SSH is still possible sudo reboot or sudo shutdown -r hang two processes are trying to exit ...
2
votes
1answer
3k views

Sierra 10.12.6 incremental update caught in reboot loop

I have automatic updates turned on. This morning I was prompted to reboot in order to install a new (incremental) update. However each time I reboot I get the Apple logo + installation progress bar ...
2
votes
1answer
562 views

MacBook Pro RAM upgrade causes endless reboot

I recently acquired a MacBook Pro (13-inch, Mid-2010) that has 4GB RAM (2x2GB) and according to Apple, the unit should be able to handle 8GB RAM. I bought 2 DDR3 PC3-8500 4GB from memorystock.com and ...
2
votes
1answer
834 views

Mac mini (Mid 2011) randomly reboots, but not while I'm using it

Very strange issue here. My Mid '11 Mac Mini (on OS X El Cap, 10.11.6) is randomly rebooting during the day and (mostly) at night when not in use. I will be up in the middle of the night getting some ...
2
votes
2answers
772 views

Safari loses web site “login” state after computer restarts

I have a problem with Safari losing my web site login state after a computer restart. For example, if I am logged in to Facebook or StackExchange the before a restart, then after the restart I will be ...
2
votes
1answer
376 views

Why My Apple iPhone 5s Rebooted automatically?

I was just using my iPhone 5s and it was in charging mode, but suddenly it re-boot without any specific reason, I am lil worried about it, I am still in warranty period and will you expect me to go to ...
2
votes
2answers
2k views

OSx Mavericks (10.9.1.) randomly restarts

After having updated my macbook pro (mid 2010) and having it run without problems for some month, it now started to randomly reboot when I'm working on something. Resetting the VRAM didn't help. Any ...
2
votes
1answer
708 views

How to pesistently configure a Macmini4,1 to boot after power failure?

I do have a Macmini4,1 (2010) and I want to use it as a server so it will always start even after a power failure. Please remind that I am running Ubuntu on it, not OS X. Still, based on what I ...
2
votes
0answers
13 views

Why does my Mac play YouTube videos in open Chrome tabs before it's finished rebooting after installing a security update?

For a while now, I've noticed that if I have a YouTube video active in Chrome when I install a security update, my Mac will start playing that video before about 20 seconds before the login screen ...
2
votes
0answers
140 views

System reboots when I disconnect Blackmagic eGPU from my Mac mini

When I shut down the Blackmagic eGPU using the icon in the Menu bar: Or if I manually unplug it, the system wants to reboot. All the applications ask "Do you want to close?" Then if I say no, at some ...
2
votes
0answers
80 views

How do I fix the “auto-reboot” bug on my iPhone X without resetting it to factory?

Here are some backgrounds: I've got my iPhone X in early 2018. The device model is MQA92CH/A. I have NEVER Jailbroken it. I only install apps from the App Store. I have dropped it to the ground for ...
2
votes
0answers
29 views

All accounts lost on each reboot

I recently purchased a used 2015 MacBook Pro. The machine is in excellent condition, and they did a factory reset before I took the device. Every time I shut down the machine, all of the users have ...
2
votes
0answers
2k views

Kernel panic related to DirtyJetsamMemoryLimit?

I've been having random crashes (freezes or kernel panics requiring hard reboots) but I can't seem to pin down the cause. Looking in Console.app on restart, the only common factor seems to be related ...
2
votes
0answers
586 views

“iCloud Keychain Was Reset” after every reboot

Everytime I reboot my mac (10.9.5), I get a notice that "iCloud Keychain Was Reset". I can set it up again without problems, but I shouldn't have to keep setting it up. What's going on?
2
votes
0answers
319 views

Reboot Error during the installation of OS X Maverick

I have a Macbook pro late 2011, with Lion 10.7.5 and I was trying to update to Mavericks. After downloading it and the process of installation everything were fine, but during the reboot I get this ...
2
votes
2answers
4k views

Mac start up - Flashing Folder

Basically, tonight my mac crashed so I re-started and got a flashing folder. I have searched around online for the commands that I need to press when I first hear the chime to get into the disk ...