Questions about booting, the process of starting a computer and putting it into a state of readiness for operation.

learn more… | top users | synonyms

0
votes
0answers
35 views

Can't boot normal or from recovery HD

Yesterday my MacBook Pro 15" Retina stopped booting. I see the Apple logo and a progress bar which gets stuck at about 10%. What I tried so far: Booting in recovery mode - same, progress bar stuck ...
1
vote
2answers
2k views

MacBook Pro Mid 2009 does not boot without resetting system management control (SMC)

Today i started my macbook pro and after some seconds it stopped working (just turned). I was not able to start it again. After some apple support search I found a page that described how to reset the ...
-1
votes
2answers
38 views

What is wrong with my mac?

Suddenly today my good old MacBook pro from 2012 won't start. I get the gray screen of death. I have tried safe boot, recovery boot and Internet recovery boot and it all results in a static gray ...
1
vote
1answer
1k views

cannot boot. volume disappeared from boot option after Disk Utility (GUI) repair

I have a 13-inch MBP with the latest OS X version. Problem Yesterday, I went to the Recovery Mode and performed Repair on my boot volume. I was not having a problem, but I just wanted to verify and ...
0
votes
0answers
21 views

Spotlight indexing every time system restart or boot

Every time I restart or boot my Macbook Pro 2015 running Yosemite 10.10.4 bought yesterday. Please help is this normal behavior for a newly bought Macbook Pro 2015 model to do? P.S. I don't have any ...
1
vote
3answers
2k views

MacBook Pro refuses to boot/recover, hangs at “white screen”

I am somewhat new to caring for Macs, but one has been left in my care and I have not been able to restore it to working order yet. Here are the symptoms: The MacBook Pro would hang with a "white ...
1
vote
0answers
28 views

Boot stuck at Prohibitory screen

I'm using Macbook Pro 2012 running Mac OS X 10.10.3 and earlier today, I was trying to install Linux on a USB drive through Terminal. I first converted the format with this: hdiutil convert -format ...
1
vote
1answer
2k views

No bootable device after failed Windows 7 installation via Bootcamp

While trying to install Windows 7 via Bootcamp on my MBP Retina today I really messed up. After getting into the drive selection in the Windows installation utility I deleted the other partitions (3 ...
0
votes
1answer
34 views

MacBook Pro won't start up

This is a 15" 2010 model that came with OS X 10.6 and now has 10.10 installed. After turning the computer on I can hear the startup chime and the power adapter indicator light lights up. The Apple ...
0
votes
1answer
52 views

How can I get Windows to install in Legacy (BIOS) boot on my mid-2012 MBP

I've got a 13" mid-2012 MBP running OS X 10.10.3 Yosemite. I've recently repaved it with a fresh install and now I'm getting round to Bootcamp`ing it. I've installed Windows 8.1 in EFI boot mode and ...
0
votes
1answer
2k views

How to run Apple Hardware Test with broken keyboard?

mid-2011 13" MBA running Yosemite Coffee spill has left keyboard of mid-2011 13" MBA non-functioning. Even power button doesn't work, I boot by shorting the two solder points on logic board. I've ...
0
votes
1answer
29 views

Hard Drive Change SSD - Macbook Pro

My Macbook was slow, and then i've want to make it faster, it is a Macbook Pro from 2011 or 2012, can't remember it. I bought a Samsung SSD 850 EVO. Firstly what i did, was to take out the old ...
0
votes
1answer
1k views

Serious Boot / Sleep Problems

Two days ays ago I closed the lid of my macbook pre for the night as I have done for the last 2.5 years but when I opened the lid in the morning the screen didn't show. It seemed to be 'alive' (ish) ...
0
votes
0answers
25 views

OSX Yosemite bootable usb drive circle slash (“no” symbol)

I have a Late-2011 Macbook Pro (4GB RAM) that has been running slow for several OSX cycles, and since Mavericks it's been unbearable (spinning beachballs whenever you do anything). I tried upgrading ...
1
vote
1answer
3k views

OSX Froze, Fails to Boot in any Configuration

In the middle of working like a charm, my MBP locked up. After a bit, I did a hard power off. Here's the timeline since then Reboot. Got to user screen just fine, logged in. Applications all started ...
0
votes
0answers
38 views

Why does my MacBook Pro (mid 2010) not boot OS X 10.9.2?

My MacBook Pro mid 2010 does not boot anymore from the HDD with installed OS X 10.9.2. I came across this solution which is clearing the NVRAM, but my Mac keeps showing the Apple logo and a spinning ...
1
vote
1answer
125 views

Unable to boot into ElementaryOS on MacBook after PRAM reset

I installed ElementaryOS on a separate partition of my HDD. Not sure what happened but the audio in OSX stopped working after the installation. After trying everything else, I found resetting the ...
1
vote
1answer
7k 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 ...
1
vote
1answer
6k views

Mac boots into log on screen quickly but takes long time to log into account

I just replaced the stock OEM hard drive on my 2010 macbook pro 15 inch with a Samsung 840 Pro SSD 256GB and installed Yosemite on it from scratch with USB (the first time i am using Yosemite). Now ...
2
votes
1answer
12k views

iPad won't turn on after a complete battery drain

I forgot to plug in my iPad after the critical battery warning and it went some minutes following the warning. I was not worried because same thing had happened a few times before and iPad was ...
1
vote
4answers
34k views

MacBook Pro can't boot: shows Apple logo then grey screen

There is a MacBook Pro from 2012 with Mountain Lion that won't boot. The Apple logo is showing, the spinning wheel and then it just goes to a solid grey screen. I've tried to hold Cmd+R while ...
4
votes
1answer
3k views

Macbook Pro hangs when booting into Boot Camp Windows 7

I have a 2011 Macbook Pro 15" 10.7.4 with Windows 7 installed in Boot Camp. A few days ago, I tried to boot into Windows 7 and it just froze after I selected the Boot Camp volume on the Select Drive ...
0
votes
0answers
28 views

OSX intall usb key not detected

I've trying to reinstall a clean OS X Yosemite on a Mac Book Pro (mid 2013 model) for the past few days but had no success. I created a bootable usb drive using createmediainstall (as on this: ...
0
votes
2answers
133 views

How do I repartition my Mac to get rid of my dual boot setup?

I setup dual boot on my Mac (with Ubuntu) and want to get rid of it. The Disk Util GUI shows me: However attempting to remove the disk0s4 or disk0s5 partitions results in: Could not unmount ...
1
vote
2answers
35k views

What are next steps when fsck reports “could not be repaired after 3 attempts”?

My Mac Book Pro 13.-" doesn´t get past the grey booting screen with the apple and the spinning wheel (The loading bar appears but when it´s done nothing happens) I have 220 GB in one single ...
1
vote
2answers
15k views

Macbook Pro Crashing and Startup Failure

Firstly, some background information for the problem: My girlfriend's Macbook Pro had an issue that was annoying, but not fatal. Roughly once a day (but sometimes not for a few days, and sometimes ...
3
votes
1answer
2k views

Macbook boots up to grey 'prohibited' symbol

I'm having an issue with my '09 13" Macbook Pro. When I boot it up, it seems to be booting normally until about thirty seconds in, when the Apple symbol is replaced with a kind of 'no-smoking' symbol, ...
1
vote
1answer
23 views

Disk Utility works forever at trying to repair partitions

My computer froze yesterday while I was using a browser. I restarted and never got past a plain white screen. Finally was able to boot from a different drive and ran disk utility on my main boot drive ...
0
votes
1answer
38 views

Cannot press Shift+T in OS X

Since a few days, I am not being able to press T and any other key on my Wired Apple Keyboard. Nothing happens when I press Shift and T. Keyboard shortcuts like Cmd+Shift+T don't work. Cmd+T works. ...
2
votes
2answers
3k views

Resetting MBR on iMac

I installed Ubuntu on my iMac (partially successfully) I had rEFIT installed but it did not recognize the Ubuntu installation. I removed the partition and rEFIT and now when I attempt to install ...
6
votes
4answers
23k views

Boot into Mac from Windows after failed Bootcamp

Don't hate on me too much for this one... I put Win8 on my Mac Mini using Bootcamp, and all was well. I switched back and forth a couple times between the two with no problems. The problem started ...
0
votes
1answer
72 views

Slow Internet Mac Yosemite Recovery Doom (MacBook Air, Early 2015)

Product: MacBook Air(early 2015) with OS X Yosemite. The issue is, that I happen to have my Yosemite reinstalled, so I restarted my MacBook and at the sound of the chime(startup sound of Yosemite), I ...
2
votes
0answers
40 views

Why does my USB hub hide a directly attached drive from the boot menu? (post-Filevault)

I recently enabled FileVault on both my mid-2012 Retina MacBook Pro and my external USB drive containing a Carbon Copy Cloner backup. My external drive is attached directly to the MBP. I also have a ...
1
vote
2answers
2k views

Upgraded to 10.9, but it broke my Windows 8.1 Boot Camp partition!

I just got Windows 8.1 set up via Boot Camp a couple days ago, and everything was working wonderfully. Today, I upgraded my Mac to OSX v10.9, as suggested by Apple. Nobody told me it would break my ...
2
votes
1answer
3k views

Can't boot MacBook Pro 13" (mid 2010)

The problem occurred after installing the update SMC 1.6 on Apple - OS X Mountain Lion: First for a long time was a white screen and noisy cooler After the system battery icon was crossed out and ...
2
votes
3answers
142 views

Installation of Yosemite is interrupted by a white screen at ⅓ of progress bar

The loading of the installation from a Yosemite USB installer drive is interrupted by a blank screen about ⅓ into the progress bar. The same USB drive works on another (older) MacBook Pro. The ...
0
votes
2answers
117 views

MacBook Air won't start up, won't enter secure mode and repair in Disk Utility

Unfortunately some data was downloading and my Mac got stuck, so I forcefully power it off. After that, I couldn't enter the login screen, because the loading bar was stuck. I tried to enter safe ...
-2
votes
0answers
28 views

How to recover a Windows 7 only MacBook Pro 2010 with no bootable device?

After trying to boot my MacBook Pro 2010, I get the following message: NO BOOTABLE DEVICE -- INSERT BOOT DISK AND PRESS ANY KEY Only Windows 7 Home Premium but no Mac OS X is installed. I ...
1
vote
1answer
17 views

Default ubuntu to boot in startup manager causes ubuntu to not work anymore

I have installed ubuntu alongside os x. I can start it by pressing the option key during startup and choose the correct disk. Everything works. Now I want to default the ubuntu disk. That works by ...
0
votes
1answer
14 views

SATA cable problem?

I have a MacBook Pro 8,2 (15 inch, early 2011) running Yosemite (with encryption enabled). I have a strange problem that seems to relate to my boot drive (Samsung 840 Pro SSD). The system runs great ...
1
vote
1answer
34 views

Why does my Mac Pro boot to black screen with third-party video card when holding Option key?

I have a Mac Pro 2012, and recently installed a new Gigabyte GTX 760 graphics/video card. I also have Windows 7 installed on this computer on my Bootcamp partition. When I attempt to start up my ...
0
votes
2answers
3k views

iPhone 5 stuck at Apple boot logo after screen replacement

My girlfriend smashed her iPhone screen. Being technically competent and after looking at YouTube videos of how to fix it I thought I would give it a go. After replacing the screen and moving the ...
0
votes
0answers
8 views

iPhone 3G stuck on boot logo - iTunes not available

This might be easy on Win/Mac but I only have Linux, so no Itunes is available: I have an ooold iPhone 3G that runs iOS 3.1.3. It might be jailbroken, I can't remember because I haven't used it for a ...
0
votes
0answers
91 views

Mid 2012 15 inch MacBook Pro Yosemite 10.10.3 Grey Screen Startup Freeze w/ Bootcamp

Recently, I tried to log into a windows partition (created with Bootcamp) that I had not been on in a while. When I selected that partition from the boot options screen, it would freeze on a ...
3
votes
3answers
9k views

Cannot access vital boot options on Mac Pro with OS X Lion

I have this used Mac Pro (mid-2010) that I recently bought, that came with OS X Lion installed. It was apparently installed from an image because there are a lot of installed apps and, though there is ...
0
votes
1answer
4k views

I can't boot into Windows 7 on Boot Camp

I have a mid-2009 MBP. A couple of years ago I swapped out the optical drive for an SSD, made the original hard drive a Boot Camp partition and installed Windows 7 on it. It has been a brilliant "best ...
0
votes
2answers
3k views

Mac Pro: Kernel panic during HDD boot and DVD boot

I have a 2007 Mac Pro (OS X Tiger 10.4.11) that cannot boot up anymore since a few days. I see the grey screen with the apple logo and the rotating circle. After a minute or so I get a kernel panic. ...
1
vote
1answer
43 views

Gray Screen on Boot

After getting some kernel panics and failing to fix it, I decided to reinstall OS X. It now boots but gets stuck on a gray screen with the Apple logo. The odd thing is I can boot into single user ...
1
vote
2answers
33 views

2009 Macbook not booting up

I found a white plastic/ rubber 2009 Macbook in the IT Office of my school and was given permission to try to get it to be usable again. Currently, it is able to be charged with its magsafe connector ...
0
votes
1answer
24 views

iPad mini will not turn on

I can not get my iPad mini to turn on. I have tried to press the home and power button simultaneously but that doesn't work and when it is attached to the charger I hear the charge ding sound. What ...