refers to booting more than one operating system on one computer.

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16
votes
2answers
37k views

How to force Startup Manager menu to appear at every boot?

Is there any way to force the Startup Manager menu to appear on every boot? Rather than me having to remember to hold down Alt if I want a different OS.
8
votes
4answers
11k views

Why won't my MacBook Pro boot from a Linux Live CD?

Whenever I try to boot up from a live cd, it starts to boot and then it tells me: No bootable file system available. It's an Early 2011 MacBook Pro 13" 8,1 with the 2.3 GHz Core i5. What's ...
7
votes
3answers
5k views

Dual boot Linux and Lion on FileVault 2 disk

I have Mac OS X Lion installed on FileVault partition. On the same disk I've installed GNU/Linux. When I boot my MacBook I can only boot Lion. How to boot Linux? In case you need here is more ...
6
votes
4answers
5k views

What are the sector sizes on Mac OS X?

I read on the HFS Plus Wikipedia page that the default sector size on a Mac is 512 b. However, I also read that Macs support 4kb sectors. How can I determine which I have, 512 b or 4 kb sectors? I ...
6
votes
3answers
8k views

How do you install and use a Linux partition on Mavericks?

As a just-for-fun type of experiment, I was wanting to install Linux on an external drive that I own and boot it up on my 2007 iMac desktop. I know there are a plethora of guides out there on how to ...
6
votes
3answers
17k 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 ...
6
votes
3answers
25k views

How to install Windows 7 Bootcamp using iso file (without USB/DVD)?

I have a MacBook Pro and I need to install Windows 7 besides Mac OS X so I can play games on it. The problem is that I don't have a USB stick or DVD to copy the Win7 iso image like Bootcamp requires. ...
5
votes
3answers
3k views

Bootcamp: is there an advantage of 64-bit vs 32-bit Windows?

I've got the new MabookPro retina. I want to install a dual boot Windows OS. I have the option from MSDN to either install a 64-bit or a 32-bit. Is there a performance advantage? Other advantages?
4
votes
1answer
770 views

How can I tell OSX NOT to mount some of the drives in my computer?

I have a Mac with a Windows drive that I occasionally boot to. Most of the time, I'm using the Mac, and the Windows disk always mounts and shows up on the desktop. I would like to keep it from showing ...
4
votes
4answers
4k views

Upgrade to mountain lion from dual-boot ubuntu configuration

I have a Lion installation dual-booted with Ubuntu using refit. Upon trying to upgrade to Mountain Lion, I reboot into the mountain lion installer, and get a message about OS X not being able to be ...
4
votes
3answers
529 views

Triple boot (Lion, Win7, Ubuntu)

I currently have my MacBook Pro set up to dual boot OS X Lion and Windows 7. I am in the middle of a development project where I need to write some custom software that depends on proprietary drivers ...
3
votes
2answers
1k views

Is it possible to dual-boot Mac OS X 10.7 Lion and Mac OS X 10.8 Mountain Lion?

I want to try out the new version of OS X (Mountain Lion), but since I'm so comfortable with my current installation of Lion, I do not want to do a normal upgrade and install/customize all my programs ...
3
votes
5answers
294 views

Data Storage Using Dual-Boot System

It's probably not pertinent, but I'm a Mac user since the 1980's. I freely confess that as a middle-aged dog I find it increasingly harder to keep up with the latest and greatest in available Apple ...
3
votes
2answers
10k views

How can I right click on a Mac using only the trackpad in a dual-boot environment?

I am absolutely new to Mac OS and can't determine hot to issue a right click on my Mac. If I want a shortcut menu to appear I can ctrl + click to get the same effect or I can use an old mouse that has ...
3
votes
1answer
674 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
3answers
652 views

Do I need to install the Boot Camp update in Mac OS X and Windows 7?

I'm running Windows 7 on a Boot Camp partition on a 2010 Mac Pro running Lion. Every so often I'm prompted to download and install the latest update to the Boot Camp software under Windows but this ...
3
votes
1answer
210 views

Late-2013 rMBP able to install & boot Win8 using EFI?

I've previously installed Win7 (and then upgraded to 8) via Bootcamp, but I've been looking around some forums recently regarding running Win8 natively. I now have the impression that the latest-gen ...
2
votes
1answer
262 views

Dual Boot OSX on Retina MBP 15

I want to install a fresh copy of OSX onto my Retina MBP, next to the one that it came preinstalled with. I have created a 2nd partition using Disk Utility ready for the install, but have now found ...
2
votes
2answers
2k 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?
2
votes
3answers
1k views

Run a Windows Virtual Machine on Mac OS X 10.8 with a real Hard Drive partition

I have dual-boot setup on my MacBook using bootcamp. I have 2 partitions: 1 is Windows 7 and the other is Mac OS X 10.8. I have all of my stuff personal stuff setup for the Mac side. I have ...
2
votes
2answers
210 views

What is the minimum partition size for Mac OS 10.10 Yosemite?

I'm about to set up a Mac mini to dual boot Mavericks and Yosemite for software development purposes. What's the recommended minimum size of a Yosemite partition?
2
votes
1answer
161 views

What are these weird permissions? ==> d????????? ? ? ??

Since my Mac crashed and does not boot OS X at the moment, I am trying to recover some data from my user folder in OS X from within of Ubuntu. Usually I have no problem accessing the files. But not ...
2
votes
2answers
5k views

Dual boot MacBook Air 2012 with Windows 7 - now boots directly into Windows

So I attempted to set up dual boot (Boot Camp) on my new MacBook Air (Mountain Lion) with Windows 7 and failed spectacularly in the process. The Mac just boots straight into Windows now. There's no ...
2
votes
2answers
176 views

After getting a Mac, how to install Lion again on another partition?

After getting a Mac with Lion and creating a partition to install Lion again (to have different versions of Xcode and Xcode beta on different partitions), how can Lion be installed on the new ...
2
votes
1answer
516 views

Can only boot to Windows 7, no OS

Back in late 2010, when I first got my MacBook Air, I followed the instructions at http://howto.cnet.com/8301-11310_39-20020513-285/install-win-7-on-macbook-air-from-a-usb-drive/ to install Windows 7 ...
2
votes
1answer
292 views

Sharing users between Mountain Lion and Snow Leopard — will this break user preferences?

I have ML and SL installed as dual boot OSes and want to share a user's home directory (on an external drive). I wonder, however, if I rather should use different users for each OS as ML might write ...
2
votes
1answer
98 views

Can one Mac boot up to several OS X installation?

Since there will be iOS 6 / Xcode 4.5 Beta or Preview and Mountain Lion Beta or Preview, I wonder if using an iMac with 1TB of hard drive, can it be partitioned using its Disk Utility into 4 or 5 ...
2
votes
1answer
349 views

Two SSDs in a Macbook Pro with OSX on one and Windows 7 on the other

Is it possible to have a setup like this? What I want to be able to have is one SSD with OSX Lion and another SSD with Windows 7 in a usual dual boot setup.
2
votes
0answers
275 views

How to bless a partition using a custom EFI-boot file with non-conforming directory structures and/or file names?

Is there a guide on how to bless a partition for booting, one that doesn't have the default /System/Library/CoreServices/boot.efi structure? For example, I installed GRUB on the default EFI System ...
2
votes
0answers
348 views

Accidentally deleted OS X partition

I was installing Windows 7 using bootcamp on my iMac machine and accidentally deleted the main OS X partition while doing that. So now I when I start the machine I see only an option to choose windows ...
1
vote
1answer
230 views

Dual boot versus VM storage use?

Which requires the least total storage to run Windows 7, configuring an MBA for dual-boot with Bootcamp, or using a VM (Parallels, VMWare, VirtualBox)? For the smallest solution, how many free GB ...
1
vote
4answers
2k views

Gray screen immediately upon boot. Cannot enter into safe mode, and cannot show boot loader with the Alt key.

How the problem came to be: I wanted to dual boot Debian on my MacBook Pro 8,1. I got my USB ready, downloaded ISO, and installed rEFInd. I restarted to make sure the new boot manager worked. It ...
1
vote
1answer
163 views

Smart “Applications” folder

How to create a "smart" Applications folder that unifies the content of other three folders? In my machine I have three versions of OS X installed (for testing purposes) in different partitions, each ...
1
vote
2answers
98 views

Using an external boot drive and the app store

I'm trying to setup my MacBook Pro so that I have an internal drive with one OS X installation (Lion) as well as an external installation that boots via an esata card. Everything is working great ...
1
vote
4answers
2k views

Disk Utility hangs prior to resizing partition

When trying to shrink the size of a partition, the period before the actual resizing happens (where Disk Utility says "Preparing to partition disk") hangs forever. I dug into Console to see what was ...
1
vote
1answer
543 views

BootChamp equivalent to go from Windows to Mac

I use BootChamp to restart into Windows directly from OS X. I was wondering if there is an equivalent piece of software to restart from Windows into Mac. This will be especially useful when using ...
1
vote
1answer
823 views

Boot Ubuntu 12 on Mac Mini with Lion OS

How can I boot Ubuntu-12.04 LTS on Mac Mini Lion Server (early 2011) with no CD reader?
1
vote
1answer
552 views

Safe to upgrade to Windows 8 on Bootcamp?

So I'd read a service advisory on the Parallels site warning users not to upgrade to Windows 8 due to it damaging their virtual machine and associated files therein. That being said, is it currently ...
1
vote
1answer
845 views

Is it possible to dual boot Mac OS X Snow Leopard and Fedora 17?

Has anyone attempted this before? Are there any installation guides to follow? I attempted to install before but I wasn't able to boot into the fedora partition when i was done.
1
vote
1answer
4k views

gptsync showing blank GPT and MBR partition table

background I have Lion 10.7 and Windows 7 64 bit (Boot Camp) installed on my Mac Mini. They both boot fine. But when I tried to run Windows 7 from Parallel using existing Boot Camp, I encountered ...
1
vote
2answers
388 views

Upgrade dual booted MacBook Pro to Lion from Snow Leopard/Ubuntu

I have a MacBook Pro running Snow Leopard and Ubuntu on separate partitions. I use rEfit to choose which operating system I want to boot into. I would like to upgrade to Lion, but I'm concerned this ...
1
vote
2answers
169 views

Install Mavericks on second partition in Yosemite-only system?

I have a 2012 MacBook Pro (so yes it's capable of Mavericks). I have only Yosemite currently installed on the drive. I have an app I need to run that does not seem to properly support Yosemite, so I ...
1
vote
0answers
12 views

Option key boot selector suddenly failing

I have an early 2008 Mac Pro (12 GB, several hard disks). On OS X I run Yosemtite, On Bootcamp, Windows 7. All works fine. Yesterday I installed a "new" Radeon 5770 to replace the aged (and very ...
1
vote
2answers
68 views

OS X takes long to boot after starting rEFInd once

I have an SSD in my MacBook (Pro 9,2; encrypted), and until recently, the apple icon appeared almost immediately after pressing the power button. Soon after that I would be able to unlock the disk ...
1
vote
0answers
138 views

How to fix a Windows partition after removing Bootcamp?

I have a 2009 MBP. For a long time I've had a Bootcamp partition on the hard drive, recently I bought a second SSD and installed it in the Optibay and installed Windows on it. As it was going well I ...
1
vote
2answers
2k views

Dual boot Kali with Mac

I want to dual my Macbook with Mavericks 10.9.4 and Kali 1.0.8. I have downloaded the Kali .iso and "burnt" it to a USB stick using the dd command from in Terminal. I have partitioned my hard drive ...
1
vote
1answer
257 views

Reliable instruction on installing Ubuntu on Macbook Pro

There are some walk-through kind of instruction on installing Ubuntu on Macbook Pro (as dual boot OS along with Mac OS X), such as Lifehacker's post. But they are either too old that I worry if the ...
1
vote
1answer
65 views

Is it possible to have multiple filevault2-activated partitions on one disk?

What I would like to have: A disk with the following systems on it: OS X 10.8 (FV2-encrypted) OS X 10.9 (FV2-encrypted) Windows 7 When I try to start FV2-encryption on my secondary partition, OS X ...
1
vote
0answers
40 views

How do I get my dual boot to behave correctly?

Once upon a time my Mac had only OS X on it, but at various points in history it contained different versions of OS X and several different Linux distributions and their boot menus. I also had rEFIt ...
1
vote
0answers
131 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 ...