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- #Boot imac operating system how to
- #Boot imac operating system install
- #Boot imac operating system software
- #Boot imac operating system Pc
When I power on the computer, it boots straight to OS X.
#Boot imac operating system install
I have had the problem, twice now, that whenever I install OS X updates, rEFInd disappears.
#Boot imac operating system software
rEFInd is a handy piece of software that allows you to easily select the OS you want to boot into whenever you restart your Mac. You will arrive at the rEFInd menu with a 20-second timer, and all three OS’s should be visible. After Windows is fully installed and you can use it normally, Option+Power reboot into OS X, then install rEFInd. If ever it reboots into the wrong partition (it shouldn't), then manually shutdown, Option+Power boot, and select the Bootcamp partition manually.Ĩ. Complete the Windows installation process normally. Your Macbook should boot into the Bootcamp installation partition. (If you reboot into the Mac bootloader at this point, Ubuntu should not be visible).ħ. Reformat the partition you created in Step 4 for Ubuntu and complete the installation process, then shutdown. Shutdown again and hold Option+Power restart to get to the Mac bootloader, then select the Ubuntu install disk (should be labeled EFI, there might be two of them, either should work). Create an Ubuntu installation disk whatever way you prefer with (I believe) whatever version you prefer.Ħ. File format on the Ubuntu partition shouldn't matter at this point. Reduce the size of the OS X partition, then create a new partition for Ubuntu in the empty space. When the Mac reboots into the Bootcamp Windows installer, hold down the power button to shut down, then press and hold Option+Power to restart into the Mac bootloader. Create a Windows installation USB drive (I've created both Windows 8 and 10) and create a hard drive partition for Windows.ģ. This software allows you to merge unused space on your Mac HD with your Windows partition.Ģ. Download the free software Minitool partition. Click on it and resize the Mac HD to however many GB (gigabytes) you may need to run your multiple OS’s ( Windows OS and Ubuntu). Now the “dragging” corner to partition your hard drive is available. You might notice that your hard disk name changes. Turn off any disk encryption if enabled, which is at the file setting on the top bar. Once in recovery mode, run Disk Utility.Restart in recovery mode by pressing and holding Command + R during the reboot process.Note: it can take up to 3-4 hours to unencrypted the drive. Turn off FileVault encryption in the System Preferences under Security if you have it enabled.In OS X, remove the Core Storage designation from your OS X partition.
#Boot imac operating system how to
How to Triple-Boot a Mac (with OS X 10.10 Yosemite, Windows 10 and Ubuntu 14.04 LTS)ġ. Incorrectly performing the following steps may result in damage to your computer. Warning: the following steps are for intermediate to advanced computer users. For these individuals installing multiple operating systems on a Mac is a convenient feature. Some individuals might need run company-specific software that requires Windows or a Linux operating system but might prefer Mac’s OS X operating system for personal use and don’t want to use multiple computers or be stuck using an operating system they are not familiar with. Some programs are only OS X compatible and vice versa.
#Boot imac operating system Pc
Some older PC games can only run on Windows. There are some programs, apps and games that are system specific.
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You might be asking yourself why would someone want to be able to run three operating systems on one device. Wouldn’t it be nice if you could have all three major operating systems (OS X, Windows, Ubuntu Linux) running on your computer! This is totally possible with a Mac.