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

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2
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1answer
2k views

2008 iMac Running OS X 10.8.2 Won't Boot

My 2008 iMac is having trouble booting—it never gets past the initial grey screen with the Apple logo and spinner. After letting it try to boot (spinner working) for upwards of 10 minutes, I'll get ...
1
vote
1answer
6k views

Repair or recover drive from recovery mode

My main HDD is failing to boot. (Neither Normal, Safe mode nor Single User). I can only boot from Recovery Mode or DVD. The scenario was the following: Computer was asleep (lid down). Lifted the ...
1
vote
1answer
196 views

Is this fun partition mess I have made fixable on the Mac OS X side?

On a MacBook Pro, a wrong decision long time ago still causing numerous problems. In a nut shell, I run bootcamp and OS X together on the same drive and the OS X stopped booting a while ago (I was ...
2
votes
1answer
2k views

MacBook Pro running OS X lion stuck on boot screen

My MacBook is stuck on the boot screen like this: I have tried multiple things such as launching it in safe mode and pressing some buttons as soon as the computer boot logo shows up.
1
vote
1answer
274 views

How to mute bootup sound? [duplicate]

Possible Duplicate: How do I disable or get rid of the startup sound my Mac makes? I have an old MacBook Pro (pre-unibody) running OS 10.6. I am annoyed by the traditional Macintosh bootup ...
0
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2answers
3k views

MacBookPro stopped booting what should I try?

My 2008 MacBook Pro suddenly stopped booting the other day and now the screen looks like this each time it attempts to boot: The boot time sound still happens, but I just see the dodgy pink with the ...
1
vote
2answers
2k views

How to tweak boot time by disabling apple kexts (including cryptography related ones)?

Initially, I am running OSX Mountain Lion on a mid 2010 6,2 MBP. I wanted to enhance my boot time a little, maybe by disabling some official apple kexts. Has anyone played with that, knowing which ...
2
votes
2answers
471 views

On/Off vs. Sleep Mode

The new retina MacBook Pro is boot so quickly that if I don't use it for even 5 minutes it doesn't make a difference to me whether I shut the computer down or sleep it. What is the best option for ...
0
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0answers
156 views

Names of bootable partitions aren't the same as the names in Disk Utility

We use external FW/USB drives as portable diagnostic and installers and even though the partitions are named and have a custom icon, they show up as "Mac OS X" with a generic USB/FW icon when option ...
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 ...
-1
votes
1answer
580 views

Macbook won't boot, possibly HDD issue

I am posting this for a friend who is having this problem but obviously can't post this himself as his computer will not boot up. He started having problems after a video game crashed during online ...
3
votes
2answers
3k views

Boot from different drive without using Alt/Option

My 2011 27 inch iMac will not boot, it plays the startup sound and then freezes on a white screen. I am fairly confident I could fix it myself if I could get it to boot from a USB drive or external ...
5
votes
4answers
23k views

What can be done to fix a 2011 iMac that will not boot past the white screen?

I have now tried opening the iMac and removing the cables to the SSD, it still gets stuck on the white screen. I tried again, removing the cables to the HDD as well and the same thing occurs. No idea ...
1
vote
1answer
136 views

Boot time on Mountain Lion

I have my MacPro Quad and upgraded to Mountain Lion. I have cloned the system hard disk to bootable external HD. I have tried it and works fine. Now when I have put the external HD in the BAY I to ...
0
votes
1answer
1k views

BOOTCAMP HDD move - Missing operating system

A few weeks ago I put a bootcamp partition on my 320gb HDD in my mbp early 2009. However, a few days ago I bough me a 1tb hdd and exchanged it. Of course, I don't really want to re-install windows all ...
0
votes
1answer
93 views

Mac operating system from disc at startup

Hello everyone and thank you in advance. I have just downloaded Linux Ubuntu and put it on a disk. What i want to do is to hold C during the Mac startup so that I can choose to boot my mac through ...
1
vote
0answers
229 views

iMac 2011 spinning beach ball after login

the following is the HW profile of my iMac: Hardware Overview: Model Name: iMac Model Identifier: iMac12,1 Processor Name: Intel Core i5 Processor Speed: 2.5 GHz ...
0
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0answers
272 views

Mac OS X Base System interference

I have reviewed what has been written here regarding the Mac OS X Base System and I am still scratching my head. The impetus for this inquiry is how these partitions interfere with booting problem ...
2
votes
1answer
3k views

MacBook Cannot Boot Up - Grey Screen

My MacBook won't boot past the grey screen (white unibody MacBook 15", Intel-based, dual core). I installed an illegal copy of Snow Leopard onto my Mac (as legal copies were not available in my ...
0
votes
1answer
10k views

How to install Snow Leopard from USB where USB disk is prepared using Linux?

I'm trying to install Snow Leopard (a retail version) into my MacBook, but seems like that the MacBook can't find the boot disk over USB. I guess this is related to the fact that I mounted the .iso ...
2
votes
1answer
518 views

How does Apple achieve such an ultra fast boot up?

I'm a recent Mac user (MBP) and the booting time really surprises me. Within few seconds, from complete power down, the OS prompts you to log in, then the rest just flies! And even faster recovery ...
2
votes
1answer
289 views

Has iOS Always had Secure Boot?

In Apple's recent iOS Security paper here http://images.apple.com/ipad/business/docs/iOS_Security_May12.pdf They speak about the Secure Boot Chain, my question is has iPhones/iPods/iPads always had ...
2
votes
3answers
23k views

MacBook Pro flashing question mark but I can't repair because hard disk not found in disk utility

Today my MacBook showed up some wheel of death and I waited and waited and then after a long time (10 minutes) decide to force shutdown. Ok, I know its not a good idea but I've done this before and ...
6
votes
4answers
3k views

For a FileVault user of Mountain Lion: can I avoid the automated login, which normally follows unlock of the encrypted startup volume?

I have FileVault enabled with two users: AdminGuy OtherGuy. I want AdminGuy to: have the ability to unlock the HD, and therefore only he can enter a u/n + p/w at boot to start boot up have the ...
7
votes
4answers
45k views

Repair disk from single user mode (fsck fails)

Earlier today my 2009 iMac emitted I/O errors trying to copy files. So I ran disk utility, verify disk to see if anything was amiss. It was. But as it's my startup disk I couldn't repair it, so I ...
3
votes
1answer
432 views

How to set up an iMac not to look for USB Flash drive info during boot up?

Short question: is there a way to disable an iMac's USB Flash Drive boot up so that boot up time is faster? Details: My iMac has an external USB hub, and it has 3, 4 or sometimes 6 or 7 USB Flash ...
2
votes
2answers
1k views

How to distinguish multiple OS X installations from each other in the bootloader?

I read with interest this post about setting up a flash drive with multiple OS X installers. It confirms what I've suspected by my tests with just one OS (Lion). However, a question occurred to me: ...
0
votes
1answer
218 views

How do I show a partition created gParted while booting my Mac?

I have a Mac Mini mid 2011, 500GB HDD with dual boot Windows 7. I tried prepping this drive so that i can clone it to a smaller 240GB SSD using gParted from this tutorial. Now when I boot holding ...
2
votes
1answer
200 views

Using OS X Lion on a main SL mac - use USB key instead of partition?

I need some advice. I am new and non-techy so please could you help me on a simplified level. I am running Snow Leopard on my Mac which I am happy with. I will upgrade to Mountain Lion later but I ...
1
vote
1answer
241 views

Regular Boot System Unresponsive

My computer was working fine until last night when I restarted. When the computer booted up and I logged into my account, I suddenly got the beachball whenever I tried to open an application. For ...
6
votes
4answers
16k views

Can you boot a MacBook Air from a USB 3 external hard drive?

Macs have long been able to boot from external FireWire hard drives. I don’t think they’ve been able to boot from external USB 2 drives though. The new MacBook Air (2012) has USB 3.0. Can it boot ...
3
votes
1answer
8k views

Stop-sign after boot and “Still waiting for root device”

Need some advice regarding a problem starting up my Mac Mini (mid 2011). The other day I was browsing websites when the machine froze with the spinning beachball. So I was forced to power off/on my ...
1
vote
1answer
461 views

MacBook Pro Lion crashes after a progress bar boot

Basically my MBP started giving me messages (out of nowhere) about how my Memory was too low and that I needed to shut down a few programs before continuing. In the end I was left with only Finder ...
0
votes
1answer
512 views

Is there a way to burn a Lion installation DVD-R from a new Mac mini or Macbook Pro?

I got a new Mac mini and Macbook Pro, and hope to burn a Lion installation DVD-R if it needs to be used in the future. But I searched for any file greater than 1GB on the hard drive and didn't find ...
1
vote
0answers
373 views

SSD only boots from USB adapter

I would like to know if anyone has an idea or suggestion to what's happening on my SSD. I was using Lion on my Vertex 3 SSD 240GB - MacBook Pro (early 2011 model) and everything was running well ...
2
votes
0answers
229 views

Boot into Legacy HD option rEFIt

I just synced my rEFIt partition tool and now I get an option to boot from legacy HD when at the moment the only bootable disk is that cotaining Mac OS X. Has anyone got any idea of how I can get rid ...
2
votes
1answer
7k views

How do I install Linux on an Intel iMac with no OS nor CD drive

What I want: Linux on an Intel iMac (Core Duo). What I have: An empty PC (17" Intel iMac) with broken CD drive. It's model A1173. This PC with Ubuntu 12.04 and an old Windows Vista partition. a ...
2
votes
2answers
1k views

After System Update last night, the system will not boot with IOPlatformExpert.cpp:1504 error

I have had Lion for a 2, 3 months on the iMac 27 inch purchased last October (2011). Last night I chose to update the system, and deselected iMoves update because it was 1GB, and chose only 4 ...
1
vote
2answers
119 views

Are “Extensions” something that disappeared many Mac OS versions ago?

On a sheet of Mac keyboard shortcuts for booting, one of them says, "hold down shift while booting and the computer will not load login items or extensions". Am I wrong, or are Mac OS "extensions" ...
1
vote
2answers
137 views

Keyboard shortcut to prevent login items from loading but still allow extensions

I know that if I boot my Mac while holding down Shift, then it does "safe mode" which causes it to boot without either login items or extensions. I often want to boot the computer and not load login ...
0
votes
2answers
2k views

Successful jailbroken iPhone ran out of battery and stuck in constant reboot with worn sleep/wake button

I successfully jailbroke my iPhone 3GS 5.1.1 untethered using Absinthe. I had been using the phone for a handful of days. Last night however the phone ran out of battery. A few hours later, I ...
3
votes
1answer
12k views

How can I make a bootable Windows 7 usb in OSX Lion?

I want to make a bootable Windows 7 USB in OS X Lion. How can I do that?
2
votes
2answers
6k views

Can I use 16 GB RAM with my MacBook Pro 7,1?

I just picked up 16GB of RAM for my MacBook Pro, running the newest OS X. According to the NewEgg reviews, it should work in it. However, once I boot up, it shows the Apple logo and, after a few ...
2
votes
1answer
1k views

How can I fix my GPT?

I just migrated from a 120 GB SSD drive to a 600 GB SSD drive. As I was lazy and didn't want to reinstall Mac OS X (Lion), I chose the following migration path: I created at GPT on the 600 GB target ...
2
votes
2answers
4k views

MacBook Pro (Lion) won't boot anymore

My MacBook Pro won't start up anymore. Here are the symptoms: displays only folder with question mark icon on startup when boot from Lion installation disk the disk utility program crashes. when i ...
0
votes
1answer
727 views

Unable to boot into 10.4 installation disc

I'm attempting to fix my friends old iMac G5 running OSX 10.4. There are a bunch of updates she needs, but she doesn't know her admin password. I'm attempting to reset it with her 10.4 install disc, ...
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0answers
2k views

iPhone won't charge anymore in infinite boot-loop [closed]

NOTE: I know this is a lot of text to handle, but I'll add a bounty whenever I can to the person who can bring me the solution. So see is as a motivation to read the whole text :) My friend has the ...
3
votes
3answers
9k views

Macbook Pro (Late 2011) Bootcamp and USB boot questions

I have a Macbook Pro with an OWC DataDoubler drive caddy replacing the Superdrive (installed at an Apple premium reseller, when I bought it, so I can still have my warranty). The main drive slot has ...
0
votes
1answer
582 views

Problem booting Ubuntu from newer Macbook Pro (late 2011 model)

I'm trying to create a USB stick that is bootable on both PC and Intel Mac systems, which will contain a full installation of Ubuntu (i.e. not just a LiveCD). I've succeeded in creating a USB that ...
0
votes
2answers
4k views

How can I boot a 2012 Mac Mini off of a USB thumbdrive with CentOS on it?

I have a 2012 Mac Mini running OS X 10.7.3. On another PC, I have created a USB boot disc with CentOS 6.2 on it. The goal was to install CentOS onto the Mini. The USB drive is MBR partitioned and ...