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

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Cannot boot Ubuntu from USB 2.0 on OS X

I'm running OSX 10.7.5 on a Mac Mini 2012. I'm trying to boot Ubuntu, but keep running into issue, after issue. This is what I have done: Got an extra external hard drive an formatted to MSDOS with ...
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108 views

Install Failed on Macbook Pro

When I want to install the Max Os X on my Macbook Pro, this error occurred. Note: I think my Mac Disk is not empty. Note: My Boot disk is in Windows Disk, But my Windows disk is empty, then this ...
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139 views

Is there a way to boot on iMac from usb using a different OS and access osx files to back them up

I am having issues starting up my iMac. I would like to know if i create a bootable usb with Ubuntu or any other OS, would i be able to boot with it and access the OSX drive? I able to do this in ...
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144 views

Apple's target disk mode recognizes my bootcamp (windows) but not my Mac HD?

Needless to say, my Mac HD is corrupt and Im looking at erasing and installing Mac OS from scratch. I have been able to copy a bunch of files from my MAc HD using MAcDrive on my windows partition. ...
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341 views

Creating a Boot Camp-compatible Windows Installation Disk with GPT

I'm under the impression that Boot Camp Assistant on my MacBook Pro with Retina Display creates USB Windows Installation Drive with MBR format. Now my question is simple: If I am to be able to create ...
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1answer
749 views

Bootcamp and wireless usb keyboard: How to boot with Mac os

I have a Mac mini. I installed windows 7 with bootcamp and now windows 7 is the default OS. My problem is that it doens't seem to recognize my keypress during the boot (I have a logitech usb wireless ...
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1k views

Bootcamp problem -> not booting into Windows

Every three restarts when I'm holding down the option key and try to boot into Win7 the screen goes black and nothing happens. The indicator is the blinking cursor - if it's absent in the start, ...
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49 views

move the /boot partition on Mac OS X to a usb drive

I have done this in linux and Im wondering if someone has found a round about way of doing this in OSX. Here is how it works on linux. The boot partition is loaded to a usb flash drive. When ...
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439 views

How do I troubleshoot a white MacBook that won't boot?

I was given an older MacBook (MacBook 2,1, Late 2006, A1181) that won't boot. I can't figure out why. When I push the power button, the CD drive spins, like usual, and the white power light on the ...
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1answer
253 views

Why does my macbook always shut down on recovery?

Hi am trying to fix a MacBook Unibody Model A1342, The macbook has an unknown error that might also be caused by water accident or drop or just internal problems. (I dont know about the macbooks ...
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52 views

MacPro4,1 USB Boot?

Just bumped into an odd problem with my MacPro4,1 (2009/Nehalem) wherein I cannot boot from USB bootable disks. My various disks are recognized from System Preferences -> Startup Disk, however they ...
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190 views

OS X Lion never boots

When starting up my iMac with OS X Lion 1.7.3 it will show the Apple logo, and soon after a progress bar with the typical spinning progress indicator. The progress bar will go up to about 8%, ...
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1answer
134 views

MacBookPro wont boot Transcend SSD320

I have been having trouble booting my macbook pro. I have a backup of everything on the cloud so I tried reinstalling the system from my usb mountain lion stick. Unfortunately the disk utility did not ...
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165 views

2008 iMac upgraded to Mountain Lion now boots slowly?

We have an Early 2008 Aluminium iMac. 2.4 GHz Core2 Duo, regular HDD. I think it came with 1 GB of DDR2 RAM but we upgraded to 2 GB. It originally came with Leopard but we upgraded to Snow Leopard on ...
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184 views

External Windows 8 boot HDD isn't detected after first reboot

I've installed Windows 8 to external HDD to boot on my Mac Book Air (Mid 2012) with this guide http://bleeptobleep.blogspot.ru/2013/02/mac-install-windows-7-or-8-on-external.html. All run fine except ...
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121 views

2010 MacBook Pro won't boot

I'm having an issue with my 2010 MacBook Pro. It started crashing a lot a couple of months ago, eventually even with kernel panics. Sometimes after a crash, during the next boot, it would display a ...
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74 views

Boot (closed) macBook Pro (2011) via Apple Remote?

I have a 2011 macBook Pro which I use mostly in clamshell mode and everything works perfectly fine as long as the macBook only goes to sleep and is not shut down, however if I do by accident shut it ...
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41 views

How to verify when disk drive detection is done (diskutil will list all drives) during boot process?

In a system where SATA disks are connected to a third party (Highpoint) controller, the wish is to create a bash shell script that will run every system boot. The shell script will test whether each ...
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298 views

iMac does not show bootable USB drive on boot menu

I downloaded the Linux USB Image of memtest86 and used dd to get the image on a USB flash drive. Whenever I used it on an iMac Late 2006 (running SL) or the newest Macbook Air 13'' (running ML) the ...
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1answer
1k 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. ...
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1answer
221 views

What is the simplest way to dual-boot linux?

I am looking for the most straightforward way (both in initial setup and in maintenance) to set up a second partition on an OS X machine for (either) Debian or Ubuntu. I won't be running any other ...
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52 views

Intel bootloader for Tiger

I'm trying to boot my 2007 MBP into Tiger 10.4.11 from a backup of a PowerBook G3. The partition doesn't show up in the Startup Disk preferences, but bless will work with it. On closer inspection, ...
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23 views

Target disk mode boot flag?

I recently made a Hackingtosh, and I really need to interface with it using Target Disk mode. Is there a boot flag to be able to enable this? It's running Lion.
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148 views

Installing Leopard on a PowerBook G4 12"

So I stupidly bought a USB on eBay with leopard on it to install on my PowerBook G4. Finding out afterward that I can't boot to a usb on this 12" 1.5Ghz 512MB with combo drive PowerBook G4. So I ...
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2answers
101 views

MacBook Pro Sluggish boot

My MacBookPro has been extremely slow at the startup. Is there something similar to Window's System Registry that I can see all the boot files and uncheck what I don't need? I'm running Mac OS X ...
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1answer
1k views

Dmesg shows no timestamp

The sudo dmesg command works fine, but shows no timestamp. Is there any way to get it to show the timestamps as well?
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2answers
1k 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 ...
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19 views

Apps that were open when I restart still open on startup even though I disabled that? [duplicate]

I'm on an iMac mid-2010 with OS X Mountain Lion. I disabled the feature that reopens windows the next time I startup my computer after a restart, but for some reason the windows that I had open when ...
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1answer
89 views

MacBook Air - random start/wake up times

I have a 3yo MacBook Air running Lion. When I open it to start using it again it seems to sometimes have trouble 'waking up'. Sometimes this is instantaneous, sometimes I get a blank screen for 30 ...
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1answer
169 views

How to image and deploy a Bootcamp setup?

We are rolling out iMac's and MacBook Pro's throughout the business and are setting them up with Boot Camp and an option to boot into Windows 7. Essentially the partition is just split down the ...
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1answer
220 views

Showing the current boot arguments in OS X

Is there some way to know the arguments passed to xnu at boot from within the system?
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1answer
166 views

Could trying to disable WindowsServer.plist break my iMac it will no longer start?

Forgive the long story, but I have a mix of old knowledge and unfamiliarity with Mac so I don't know what might be relevant. The tldr version is my iMac won't boot. Trying to put op an upnp server: ...
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1answer
301 views

Boot Camp drivers don't always load (for Windows 7)?

Recently, I backed up my Windows 7 Boot Camp partition with Carbon Copy Cleaner before realizing that it would not be a bootable backup. Well, after some fiddling around, I made it bootable again ...
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975 views

Mountain Lion booting very slow in Macbook Pro

Hi I am using a MacBook Pro (15-inch, Mid 2010), i5 processor and 4 GB RAM. I recently updated to Mountain Lion and now it takes more than 2 minutes to boot up. Is this normal for the MacBook Pro ...
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1answer
2k views

Booting Windows 7 in Boot Camp shows a black screen with a blinking cursor

I am trying to restore a DMG image of a Windows 7 Boot Camp partition back to Boot Camp. (I know that I should have used Winclone, but I didn't have that option because the drive was already dying and ...
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1answer
105 views

Install Snow Lepard from USB

I have a clean and formatted SSD where I want to install Snow Leopard from a USB flash drive containing a OS X image from a (not the one it came with) original install-DVD. But for some reason it wont ...
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142 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 ...
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1answer
845 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 ...
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1answer
81 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 ...
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244 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 ...
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1answer
207 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 ...
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295 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 ...
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439 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 ...
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1answer
182 views

Ejecting USB-Partitions on boot - works but not entirely

I have an USB drive with four partitions. SuperDuper uses these partitions to back up my mac. Since SuperDuper is scheduled, I have the USB drive constantly connected. But quite frankly the noise of ...
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567 views

How to enable root on the Lion “Recovery” boot drive?

There's a few funny things / clues here and there on the Lion recovery disk "Systems" - that indicate you can save your settings between boots. A very light smattering of persistent settings etc. ...
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100 views

Intel core 2 Duo 2GB SDRAM version 10.6.3 Not booting up

I am unable to boot from a DVD on a MacBook Pro. I need to reinstall Lion. I tried holding C and also I tried using the alt key. Using the alt key is only showing the internal hard drive as a boot ...
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2answers
389 views

Trouble with Memtest86 4.0a on 15" MacBook Pro

I have a 15" MacBook Pro late 2011 (MacBookPro8,2) It has a 2.4Ghz Core i7 CPU and 4GB of stock RAM. I'm trying to run Memtest86 4.0a from boot (Memtest86+ does not work.) After about 5 seconds into ...
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1answer
1k views

OSX Lion showing a white screen plus pointer prior to the desktop appearing

During boot-up, immediately after the Apple logo with the spinning progress wheel ends, rather than the desktop appear, I get a white screen with pointer in the top left for about 5 seconds. Then the ...
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1answer
208 views

Can I boot from Snow Leopard DVD on 'normal' pc?

Just wondering if I have a copy of of snow leopard 10.6, if I put it in a typical pc that runs windows will it boot or do nothing?
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1answer
255 views

iMac 27'' mid-2011 stuck on startup (grey screen)

Okay, so I'm having the dreaded grey screen on my iMac - precisely : i'm having it doing a normal startup i'm having it trying to boot from recovery partition i'm having it trying to boot for ...