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

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101 views

After strange startup issues TimeMachine/Migration not working properly, some data seems to be lost

since I couldn't find a solution for this problem I hope somebody of you may have one: When I was in holiday 2 weeks ago and repeatedly tried to boot my MacBook Pro 15" (2012, DIY Fusion, FileVault 2 ...
0
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1answer
49 views

If I mess up the EFI System Partition, will Mac OS X be unbootable?

I forgot to make a backup of my EFI System Partition (ESP) and have installed grub onto it. If I happen to accidentally mess up the partition, will OS X be bootable? If not, how would I restore the ...
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2answers
4k views

No bootable device found ( Install windows on Mac )

I'm owning a macbook pro 13 inch mid 2009 and a USB thumb drive Kingston DataTraveler 100G3 16 GB. I successfully installed Windows 7 on my Mac using Bootcamp ( with a little trick to enable "Creat a ...
2
votes
0answers
109 views

Startup Screen Flashes Pink

During boot, I see the gray screen with the Apple logo, then the entire screen flashes pink for a couple seconds before boot continues normally. Is this a problem/symptom of something? MacBook Pro ...
0
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0answers
17 views

Installing Mac OS 10.6 on PC [duplicate]

I need to install Mac OS 10.6 on my laptop using Windows. So I have an .ISO file with Snow Leopard and USB drive,i try to create bootable USB drive via PowerISO but later,when i try to boot from USB ...
0
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1answer
239 views

MacBook Pro doesnt boot after systemupdate / repairing volume doesnt work

i have a problem with my MacBook Pro. I installed a Systemupdate, reboot and then i had a loading screen which loads a long time. Then i started the mac in verbose mode and there is... hfs: mounted ...
1
vote
1answer
63 views

Force a read-only mount of startup disk

I want to create a MacOS recovery startup disk on a USB flash drive. In order to maintain the integrity of the drive's contents (and, perhaps more importantly, reduce write wear on the flash drive ...
1
vote
1answer
69 views

Boot straight to an Application when Mac is turned on

I have a client who wants to use Mac OS X and a Mac Mini to sell a software solution to end users that ALWAYS boots straight to an application when the Mac is turned on. They can't access the login ...
2
votes
1answer
85 views

Changed the mod for ~/.. directory by mistake, made it 744, can't boot anymore

I ran the following command by mistake: sudo chmod 744 ~/.. and I can't boot my macbook anymore, it freezes with the brown screen and ajax-style spin. What should I do to make it work normally ...
2
votes
1answer
3k views

No bootable device - insert boot disk and press any key

When I boot my Macbook Pro 13" Retina (running newest Mavericks), it is showing me this error: However! If I boot holding the ⌥ alt-key, it shows Mavericks as option. When I press ⌤ enter-key to ...
0
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1answer
726 views

Mac Pro hangs at startup showing white screen with spinning pie wheel

MacPro 1,1; lion? startup hard drive failed (with loud buzzing). Removed bad drive, installed replacement, inserted Lion USB drive, verified new drive using the Lion usb drive, started installation ...
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0answers
352 views

After upgrade Lion to Mavericks, can't run Windows 7 on boot camp because is hidden/disabled

The question is about iMac (21.5-inch, Mid 2011) It was with Lion, there was a Windows 7 (32bit) partition created by Boot Camp v4. So, I made the upgrade to Mavericks (no clean install), after this ...
0
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1answer
55 views

Debian won't book on MacBook Pro

I erased the entire content of my MacBook Pro when installing debian. Now, the laptop will not boot into Linux. When I insert USB again it will start installation again. I even selected bootable ...
1
vote
1answer
794 views

Dual boot Ubuntu 14.04 on a MacBook Pro

so after a few hours of Google searching and too many headaches with a broken GPT, I've turned here. I have a 2012 MacBook Pro (9,2) that I want to dualboot OS X 10.9 and Ubuntu 14.04 on. I've read ...
1
vote
2answers
8k views

Dual booting Yosemite/Mavericks: Stuck in Yosemite with an 'Install OS X' volume instead [closed]

I've made a partition on my hard drive, so I currently have Macintosh HD (call it 1) and Macintosh HD 2 (call it 2). I downloaded the Yosemite installer with my Mavericks install on 1, then ran it ...
2
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0answers
38k views

Freeze on boot after installing Yosemite

Sorry for the writing style but I am typing from my smartphone now. My MacBook pro on Mavericks worked like a charm but crazy as I am I decided to install Yosemite without any backup as I am lacking ...
0
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0answers
12 views

How to boot in Windows by default? [duplicate]

I installed windows 8 on a bootcamp partition. When the computers shut off because the battery is low or because of windows update, it will restart in Maverik (unless I notice in time to press alt ...
1
vote
1answer
313 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 ...
2
votes
1answer
481 views

nvram boot-args to boot in target disk mode

I'd like a Mac to always boot in target disk mode. Similarly to setting sudo nvram boot-args="-v" which boots in verbose mode, I tried sudo nvram boot-args="-t" but to no avail. Any idea?
0
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0answers
86 views

2 Mac Mini Server in a restored RAID 1 config and question mark folder at boot

We have two identical Mac Mini servers (let's call them A and B) running OS X Lion with two 500 Gb HD. Using a Thunderbolt cable, a RAID 1 matrix was creating using three HDs (2 from A, 1 from B) with ...
3
votes
1answer
240 views

iMac will not boot

An office iMac will not boot - it sits at the gray startup screen with the progress circle spinning continuously. I have tried: Booting in safe mode (same result) Booting in recovery mode (same ...
0
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0answers
27 views

Ubuntu boot not available at startup

I have partitioned my internal hard drive and installed Mac OS X Mountain Lion on one partition and Ubuntu 14.04 Trusty Tahr on the other. The installation was done via alt/option key at startup ... ...
6
votes
1answer
4k views

Stuck in a boot loop after failed update to Mavericks, can't reformat HDD

I recently tried to upgrade a 2008 Mac Pro from Snow Leopard (10.6.8) to Mavericks (10.9.2) using the free upgrade available in the App Store. The upgrade seemed to go without a hitch until the ...
2
votes
1answer
487 views

Install Windows on MacBook Pro, without OS X

I installed Linux Mint on my 2006 MBP 15" this weekend before hearing that the system will not enter a compatible firmware mode for Linux/Windows without rEFIt or rEFInd installed first. Well, I do ...
-1
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1answer
62 views

Problem with bootable usb drives

So I have just created a windows 8 bootable drive using the tutorial at http://bleeptobleep.blogspot.fr/2013/02/mac-install-windows-7-or-8-on-external.html?m=1 But when I held down the option key at ...
0
votes
1answer
26 views

rEFIt defaulting to 32bit kernel

rEFIt is defaulting to the 32bit kernel of OS X which will not boot and will show this error message: at boot I have to press F2 then manually select the 64bit kernel. How do I change the default ...
0
votes
2answers
30 views

How old would a Macbook Pro need to be in order to have a non-64bit Intel processor?

My friend has a MBP that was bought 2 or 3 years ago, and I need to help him prepare some software to run. What are the chances he won't be able to boot from a 64bit Linux live USB flash drive?
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0answers
1k views

iMac 27″ boots successfully to safe mode only

I can only boot my iMac 27″ (end of 2009) in safe mode. The problem started in Lion, when the computer suddenly froze. All I can get is the grey screen, which turns black after a while. I upgraded ...
1
vote
1answer
107 views

Why the launchd has multiple instances per user (not only me and root, but also _spotlight and _windowserver)?

I found that the launchd process has multiple instances in the process list. What is looking interesting is that there are four users under which these launchd processes are running: root < ...
1
vote
3answers
5k 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 ...
0
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0answers
57 views

Macbook Pro 2008 doesn't boot

I'm having a problem with my Macbook Pro from 2008. If i boot up the Apple logo with the grey background is staying and a stuck spinner. BUT I can make sound with my mac, while it's stuck on the logo. ...
1
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0answers
117 views

MacBook pro boot's to wrong OS after waking up from Safe Sleep

I am dual booting Ubuntu and OS X Mavericks on my MacBook pro 9,2. I am using the rEFInd boot manager, since I was told that I should use it to dual boot OS X and Linux (I could have used rEFIt, but ...
0
votes
1answer
149 views

USB Boot iMac 4,1

I have a Fat32 USB that I would like to boot on my iMac 4,1. The Mac does not recognize the device from the boot menu (option key on boot) and I have tried the Plop disk but it freezes when it says ...
1
vote
1answer
933 views

MacBook Pro won't boot, or boots slowly

I have a MacBookPro OS X 10.7.5 from 2011. When trying to boot it has a slow startup or login, with numerious spinning wheels. Sometimes after a long time I can sign into the computer and sometimes it ...
2
votes
2answers
858 views

How can I boot my dual-booted Mac back to OS X?

I have a MacBook Pro and run Windows XP on it too much however I cannot remember how I can open the MacBook Pro with OS X on instead of Windows XP. How can I boot back to OS X?
0
votes
2answers
229 views

Apple infinite load. I/O error and even a new HD

My mac mini from the 2011 refused to boot. Apple logo and loading image forever.. I tried cmd+s: Went through all the steps from the applejack, tried fsck -fy, all semmed pok, Tried cmd+v: It ...
1
vote
1answer
123 views

Boot from CD, make backup, reinstall snow leopard. Good idea?

My iMac has some problems, and to repair it I thought I'd do as it says in the title. Currently, I'm running (a broken) Snow Leopard, and ideally I'd make a backup (with Time Machine) before I erase ...
0
votes
3answers
56 views

How to copy my Mountain Lion system to another drive?

I'm considering upgrading at long last to Mavericks, but need to feel confident that all my apps & workflows will work properly before committing 100%. I boot off of an external Thunderbolt SSD ...
0
votes
1answer
1k 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 ...
1
vote
1answer
506 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
2answers
3k views

How to create a 10.6.8 recovery CD (not clone of the OS or install environment)

Upon Google searching people seem to equate "recovery CD" with full installation. I have seen methods such as using Disk Utility with the Mac HD as the source and a DVD as the destination. This ...
0
votes
1answer
97 views

How to create a bootable Mavericks dvd (double layer)?

my macbook's hard-drive is dead so i bought a new one and i'm looking for a way to install os X on it. Is it possible to download mavericks on an imac running 10.6.8 and create a bootable dvd ? ...
0
votes
0answers
20 views

Debian on air 3.2

I installed Debian on my macbook air a week ago after first going through the http://www.rodsbooks.com/refind/installing.html#osx installation guide. The installation of Debian worked fine and i ran ...
2
votes
1answer
362 views

Verbose mode startup

I've been having sporadic issues where my Macbook Pro Retina hangs at startup. I started up in verbose mode and it always hangs at this message. AppleUSBMultitouchDriver::checkStatus - received ...
0
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1answer
97 views

How to turn off boot up chime on late 2013 mac pro?

I use my new late 2013 Mac Pro in Windows only. But, I'd like to disable the bootup chime. How can I do this?
1
vote
0answers
86 views

MacBook Pro 13" 2011 not booting — question mark folder

My MacBook Pro is not booting. It only shows me a question mark folder. If I try to manually boot, it doesn't give me any options than to go into recovery. And if I go into recovery and then disk ...
-1
votes
1answer
686 views

How do I recover data from a dead MacBook Air?

Things I've tried: All of the key combinations, it does not respond to any of them. I can't boot from anything external, I tried removing the SSD which is an OWC Mercury Aura Pro 6G. It doesn't ...
2
votes
0answers
130 views

Installing Mavericks on USB pen to run on Windows PCs [closed]

How can I install Apple's Mavericks on a pen drive, that I can then plug into a windows machine and boot from it? I did that some years ago with 10.6: I installed it on a 16Gb pen drive and then I ...
1
vote
1answer
1k views

Login - Screen Flashes and Returns to Login Screen - Tried Everything Possible

I have an absurd issue which pretty much nothing seems to be able to fix - I have a 2011 Macbook Pro running Mavericks. When I try logging into my main account with the correct password, the wheel ...
0
votes
1answer
1k 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 ...