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

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17
votes
2answers
62k 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.
9
votes
4answers
11k 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 ...
8
votes
4answers
14k 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
4answers
27k views

How do I get rEFInd working with OS X 10.11 El Capitan?

I noticed that I could not install and use rEFInd after upgrading to OS X 10.11 El Capitan. This restricts me to OS X so I cannot boot my Linux partition. I get the following error: error "Could not ...
7
votes
3answers
6k 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
38k 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
9k 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
2answers
17k views

Windows boot camp option missing in Startup Disk selection

I have a Mac Pro (early 2009) running Yosemite 10.10.2, all up to date. Yosemite is installed on my primary SSD (I have 2 additional magnetic drives). I use Boot Camp, and have Windows 8.1 installed ...
6
votes
4answers
45k 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
35k views

Boot camp install of Windows 7 issue, no bootable devices

So I have a 2010 15" macbook pro (MBP6,1) and I replaced the optical drive with a hard disk. I wanted to install windows 7 on the hard disk with boot camp with a USB and ISO image. After searching I ...
5
votes
3answers
22k 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 ...
5
votes
3answers
6k 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
5answers
17k 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 ...
4
votes
1answer
1k 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
1answer
360 views

Dual-boot Linux on a Mac with original Boot Loader without uninstalling OS X

phew, long title beware! My question here is, I own a Macbook Air 2014 model, and have duel-booted OS X and Bootcamped Windows 10. Now I want to be able to install a Linux distribution (most likely ...
4
votes
4answers
5k 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
1answer
2k views

Is it possible to use Boot Camp with Windows 10 from an external HDD?

I need to run Visual Studio on my MacBook Pro and I need Windows to do that. The easiest and well known way to install Windows on a Mac is by running the Boot Camp app on the Mac and let it do what's ...
4
votes
3answers
550 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
386 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
4answers
18k 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?
3
votes
1answer
150 views

Dual Boot Mavericks + El Capitan

I was using El Capitan without issues till now. I'm starting to use Pro Tools 10 which is incompatible with El Capitan, so I will need to install a previous OS X version like Mavericks to make it ...
3
votes
2answers
12k views

Bluetooth keyboard not working after update to Windows 10

I updated my (native) bootcamp instance to Windows 10 from Windows 8.1, but now the apple bluetooth keyboard doesn't seem to work anymore. The bluetooth screen says 'driver error' on the device. I've ...
3
votes
1answer
935 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
803 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
11k views

Uninstall rEFInd 0.8-3.7 on Yosemite

I recently tried installing rEFInd on Yosemite using the command ./install.sh --alldrivers however it would not recognise the ubuntu 14.04 x64 for Mac disk I made and so I would like to uninstall ...
3
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 ...
3
votes
1answer
253 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
294 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
3answers
2k views

No bootable device USB 2.0 MacBook Pro mid 2014

I've been tearing my hair out the last couple days trying to get Windows installed. I have a MacBook Pro Retina 15 inch mid 2014. Yosemite version 10.10.1. Win 7 64 bit iso (sha1 - ...
2
votes
1answer
240 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 ...
2
votes
2answers
14k 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
2k 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
1answer
201 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
180 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
2answers
11k views

Installing windows on Mac won't recognize USB [duplicate]

I am trying to install windows as a boot camp partition on my main hard drive ssd (after spending countless hours trying to get it installed on the optical bay hard drive). I assumed this would be ...
2
votes
1answer
2k 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
2answers
303 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
104 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
408 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
46 views

Unable to Boot MacBook using any means after attempted Fedora Install

Wondering if anyone has any last ditch efforts I can try here to salvage my macbook! I recently attempted to install fedora to dual boot on my Late 2011 Macbook Pro, the install crashed, the ...
2
votes
1answer
2k views

Read-only HFS+ on Windows 10 with boot camp driver question

I've been searching around on the internet for a while trying to answer this question, but I can't get a clear answer for it. Background info: I'm running El Capitan with a Windows 10 partition on my ...
2
votes
2answers
181 views

Kali Linux auto boot

I have just installed Kali Linux in a separate partition of an iMac with wireless keyboard and mouse and with rEFInd. When I turn on the Mac it boots into Kali Linux automatically and doesn't ...
2
votes
1answer
1k views

How to boot Linux from Mac using rEFInd

I have successfully installed rEFInd on my MacBook Pro 2015 so I can boot into Linux however I cannot seem to boot into it. Here are my issues (both with Ubuntu 64x Mac CD and Kali Linux 64x USB). ...
2
votes
3answers
787 views

Mac OS X doesn't recognize hard disk

I replaced my CD drive with a Western Digital 750GB hard drive using the iFixit guide. My Mac for some reason throws error on any interaction with the hard drive, for example on disk utility when I ...
2
votes
0answers
991 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
727 views

Does Windows Server 2012 R2 work with Bootcamp on MacbookPro running Mavericks?

I am trying to figure out if I can run Windows Server 2012 R2 as a boot camp partition with Mavericks. What drivers should I use? Are there any issues?
2
votes
0answers
510 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
3answers
802 views

I want to backup my Mac partition, including the OS, so that I can use the backup to restore my hard drive to its current state

I want to dual-boot Ubuntu (14.04) of my Mac running OS X 10.10.3. I want to make sure that I can use my backup to fix any issues I might have dual-booting. I have a bootable USB with Ubuntu on it, ...
1
vote
2answers
55 views

Linux on Macbook: Dual Boot or Virtualbox for a longer Battery life?

I currently use Linux Ubuntu in a VM (VirtualBox) on my MBP 2015. However, battery life gets pretty bad when Ubuntu is used continuously. I'd say 4 hours at the best (would be 7 hours on the Mac ...