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

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Efibootmgr command for OS X

I have successfully been able to install Linux Mint on my Mac. The only issue is I cannot select the boot partition holding option. To fix it I booted into linux and ran sudo efibootmgr -o 1,80. This ...
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1k views

Using Windows on another HDD on a Mac

I have a 2011 MBP and I just replaced my optical drive with a hard drive. I wanted to know the easiest and free way to boot up windows 8.1 on one of the hard drives using only the iso and a flash ...
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51 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 ...
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0answers
1k 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 ...
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0answers
754 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?
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517 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 ...
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54 views

refind : No bootable device (Mac and linux)

I just make dual boot on my macbook pro with linux fedora. when I enter linux on refind menu, it says "no bootable device -- insert boot disk and press any key". I know this question has been ...
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46 views

Cannot boot into OS X after partitoning

I have installed Ubuntu on a Mac Mini, everything works great. I'm able to switch back and forth without any problems. After that, I used GParted in Ubuntu to resize the OS X partition. I then create ...
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103 views

Boot Camp not recognizing Windows 10 ISO

I'm trying to dual boot Windows 10 on MacBook Pro, and Boot Camp Assistant is failing to recognize the ISO I've downloaded (from https://www.microsoft.com/en-us/software-download/windows10ISO). I'm ...
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37 views

My partition is using negative space. Should I worry?

As you can see, according to Disk Utility, I'm using negative space in /dev/disk0s7. This is obviously incorrect, however, I am slightly worried as to what this may mean for the partition's effects on ...
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69 views

How to remove unusable Ubuntu partition after upgrading to OS X 10.11?

I dumbly upgraded my Mac OS X to "El Capitan" and I F&%#ed myself. I can't reinstall rEFInd because of SIP. I can't disable SIP because my recovery partition doesn't have csrutil. I can't delete ...
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42 views

Is possible to create bootable encrypted partitions of Win10 + Debian + DATA on external SSD?

I'm dealing with pretty tricky problem. I want to have external disk completely separated from OS X running on internal SSD. On external SSD should be three partitions: Windows 10 - is possible to ...
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46 views

Delete yosemite partition from dual boot with el capitan

I want to install El Capitan and dual boot it with my current installation of Yosemite. I know how to achieve that with 2 partitions. I just wonder: if, later, I want to delete Yosemite, can I just ...
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26 views

Macbook booting up in Recovery Partition by default after dual-SSD/HDD

I've installed a SSD, and cloned my earlier HDD OS X to it using Carbon Copy Cloner. Now, whenever I boot-up, the MBP by default boots to recovery partition. How do I correct this? How do I ensure it ...
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72 views

Install rEFInd on separate partition (Errors)

I am trying to install rEFInd a separate partition but have run into an error. I'm doing this because I want to install Ubuntu on my other partition (separate from my Mac and and rEFInd partition). ...
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26 views

How to add addional HFS+ partitions after installing Windows with Bootcamp

The goal is to create a few extra HFS+ partitions after running the Bootcamp utility while not breaking Bootcamp's boot-ability. I am Running OS X El Capitain, and I only have a single disk drive to ...
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283 views

Dual-booting a Linux distribution on a Mac with Fusion Drive

I'd like to install a Linux distribution alongside OS X on my 2014 5k iMac with a 3TB Fusion Drive (128GB SSD + 3TB HDD). Most guides about dual-booting Linux I've found focus on regular partitioning,...
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215 views

rEFInd - normal OSX not showing, just Recovery HD

I just installed rEFInd (to dualboot ubuntu) and all is working well so far, with a small exception: In the boot interface the normal OSX (Yosemite) is not there, it´s just showing the Recovery HD. ...
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418 views

Does Apple's EFI patch Thunderbolt devices to Windows 10?

So, I've been rattling with myself about this for a bit. I've followed 5SH-2a's guide of EFI Bootcamp to no avail. I decided to try it on my own, by mapping an NTFS Partition on my hard drive to a ...
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293 views

How to set up a dual-boot (OS X and Windows 7/8) environment in a Mac OS X Virtual Machine?

Anyone found a way to set up a dual-boot environment (preferably Mac OS X 10.9 and Windows 7) in a Mac OS X VM using a type-2 hypervisor like Parallels or VMware Fusion with Boot Camp Assistant? ...
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40 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 ...
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339 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 ...
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55 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 ...
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192 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 ...
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185 views

upgrade a triple boot with 10.6.8 to 10.9 - potential problems?

I was hoping to find a consensus of people who knew about the complications of upgrading from 10.6.8 to 10.9. I see on the App Store that 240 gave 10.9 1 star while 489 gave it 5 stars - so that is ...
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446 views

How to restore the MBR partition table of MacBook Pro?

I am using a MacBook Pro running OS X 10.9.2. While trying to triple boot my mac, I updated my MBR partition tables using rEFIt. Things didn't go as planned and now I want to start afresh. How can I ...
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619 views

How do I install Linux on a late 2012 mac mini?

I installed a 2nd hard drive in my late 2012 mac mini. This hard disk had Mint Linux - 12 on it (Installed when it was in a different computer). Pressing the Option showed me two additional hard disks ...
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102 views

Windows and Ubuntu won't boot with optical drive disconnected

I set up my Macbook Pro (15" late 2008, if it matters) to quad-boot Lion, Snow Leopard, Windows 7, and Ubuntu 12.04 (using rEFIt). Everything worked fine for a couple months. Then my optical drive ...
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16 views

Serious problem with damaged OS X dual boot partition (Mavericks 10.9.5 Macbook Pro 13-Inch Mid 2009)

So I'm having a lot of problems with my Hard Drive for about 3 days. What happened was, out of nothing, my computer started to act strange. I could not move or rename files (error -50), open any ...
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56 views

Can't disable csrutil

I want to disable SIP with the command csrutil disable on my OS X 10.11.5. I tried it many times, got in the recovery mode and typed in csrutil disable. I got the message: Successfully disabled ...
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73 views

Can't find installed ubuntu partition + rEFInd doesn't work

I created a new partition, created a bootable USB with Ubuntu 16.04 and installed it. After installation completed, I get the message for restart the device and I did it. So after that it boots ...
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33 views

Upgrading to OS X El Capitan while maintaining dual boot

I've been running a MacBook Pro with OS X Yosemite dual boot with Linux, and I would like to upgrade to OS X El Capitan. However, I'm afraid that upgrading would break the ability to dual boot. How ...
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27 views

Problem Installing Kali Dual Boot on Mac OS X El Capitan

I've tried installing Kali by installing refind, reverting my CoreStorage main partition, resizing it to free 30 GB, and burning the Kali ISO to a USB using the Mac Linux USB Loader. However, when I ...
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39 views

Permanently Decrypt non-CoreStorage Partition Encrypted with FileVault

I am asking this on the behalf of someone who did not want to sign up for the SE network. I will use first-person for simplicity. When I bought my computer, it came with FileVault enabled as default. ...
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52 views

Bootcamp Windows 7 stuck in 'Installing Updates'. Windows Resuming so can't get to safe menu

I am using OSX version 10.10, I used Bootcamp to install Windows 7. I attempted to restart Windows and it stuck on Installing Updates 1 of 19 for about half an hour. I pressed the power button, I'm ...
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18 views

How to run multiple versions of Mac OSX on my MacBook

I recently bought a Macbook 4,1 from early 2008. (as it says in system information) I need to run multiple versions of osx, like on two partitions. I currently have installed os x 10.7 and need to ...
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31 views

Mac not booting into OS X nor hard-drive utility is running

I am using OS X El captain 10.11.4 on Macbook pro 2009 I created a partition in Boot camp assistance for windows 7, after reboot Windows installation started, but while installing setup shows ...
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60 views

rEFIt Not Working with Ubuntu 12.04/MacOS dual boot after upgrade to El Capitan

I have a MacBook Pro Late 2011 and the version of MacOS 10.7.2 Lion and I've always been using it no problem, so I didn't update to any of the newer versions of Yosemite, Mavericks, etc. On this Mac, ...
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41 views

Regain access to OR get rid of Windows, Linux partitions

(Note: this question is regarding an early 2015 MacBook Air (256 GB 2.2 GHz) running OS X Yosemite 10.10.3) I have happily been running my laptop dual booted with windows - installed as 8.1 Pro, ...
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93 views

How do I use bootcamp or virtualbox to run my windows 7 machine from an external drive on macbook pro?

I already purchased and installed my Windows 7 on an old PC laptop that is about to die. I want to continue using my PC-only programs but I want to upgrade to a macbook pro. I just learned about ...
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79 views

Windows 7 Installation - Missing operating system

I have replaced my superdrive with hard drive in order to install windows on it. and I have followed the tutorial here - Boot camp install of Windows 7 issue, no bootable devices And after ...
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262 views

Dual-booting Linux, cannot view images, some text or buttons

I was trying to boot 4 linux OSes (using rEFInd): Kali, Ubuntu, Mint and Elementary on my 2015 MPB. Both Kali and Ubuntu would not boot at all and Linux Mint and Elementary would boot however some ...
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230 views

Bootcamp: Insert Boot disk error

Ok so I have been trying all day using all sorts of ISO's that I can find but I run through the process in Boot Camp Assistant ensuring that all three options are selected and I point to my ISO but ...
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290 views

Install Windows 8.1 and OS X 10.9 on external SSD USB3.0 (iMac Late 2012)

Good morning, Currently I have my iMac running OS X 10.9 on an external USB3.0 SSD drive, and it has been running flawlessly. My question is: - Is it possible to dual-boot Windows 8.1 in the SAME ...
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396 views

I can't install the drivers from AppleMultiTouchTrackPadInstaller64 on WIndows 8.1 (Bootcamp dualboot)

When I try to install "AppleMultiTouchTrackPadInstaller64.exe" (Apple Multitouch (09/04/2013 5.0.20) and Apple Multitouch Mouse (09/11/2012 4.0.3.0)) on Windows 8.1 I get an "install failed". As a ...
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1k views

Mac alternative boot loader for booting legacy OS from USB

I am trying to install Windows 7 on my MacBook as a dual boot setup. I have a MacBook 7,1 running Mavericks. I have replaced the DVD drive with a SSD (now have 2 internal drives) so cannot use a ...
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1k views

Compressed windows boot manager on dual boot Macbook and windows 7

I have never posted here before so I hope this is the right place to ask this question. So I'm helping my friend with his computer right now, I should mention that I am not a user of OS X on a ...
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2k 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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2k views

Install Linux Mint on a dual-drive MacBook Pro with Windows and OS X

I have a Macbook Pro 13 mid-2012. It was shipped with a 500GB HDD, to which I added an additional SSD drive (128GB). After installing my SSD in a caddy, thus replacing the optical drive, I installed a ...
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197 views

Can't boot into MacOS X and Boot Camp

This happen when I got home from school. Early morning at school, I still perfectly use Windows in Macbook Pro (early 2011). So I did a hibernation before packing it up. Then when I was gonna use it ...