To take advantage of this, you'll to download rEFInd, an open-source boot menu that adds an OS selection screen to your Mac's boot process. Since OS X Lion, Apple has permitted third-party access to the EFI portion of the logic board to boot different operating systems natively. It's folder location will be added wherever your cursor was in Terminal. Tip: If you don't want to type in the local destination of your disc image, you can open the folder where it downloaded and then drag it onto the Terminal window. When the copy has completed, you will be asked to eject the drive. If you are successful, the cursor will flash for a few moments while the disc image is moved over. Replacing /path/to/downloaded.img with the location of your Ubuntu download. Sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m (where N is the number correlating to you USB drive) The first thing to do in Terminal is determine what drive name OS X has assigned to your USB drive. The easiest way to convert a disc image into a bootable USB is to use Terminal. Once downloaded, you will have a disc image to load onto your USB drive. If you are using a Core i5 or better Mac, you will want to download the 64-bit edition to maximize your hardware. You may download Ubuntu, Desktop or Server and 32-bit or 64-bit versions, from the Ubuntu website. Ubuntu is a free, open-source operating system, as are many of the other variants of Linux.

Nowadays, the same is possible with a USB drive with at least 2GB of storage. This was a low-cost way for new users to test out Linux and sample a few different distros. In the heyday of disc-based media, a Linux distribution (distro) could run from a CD in its full glory. The minimum recommended by Ubuntu is 5GB though you'll be left with very little space for files and applications. Use the + button in the lower left-hand corner of the partition map to add some space for your Linux partition. Once you're satisfied, click Apply to let Disk Utility create a space for Ubuntu. You can then resize it by dragging the lower right hand corner of the partition square or by typing a specific amount of gigabytes into the textbox. At the bottom, click the + (plus) button in the lower left-hand corner and then name your new partition. Tip: OS X prevents you from splitting it beyond two partitions, so if you already have a boot camp installation or you want to triple-boot OS X, Windows, and Linux, you will need to wipe the drive, create your three partitions, and then reinstall OS X followed by your other two OS variants.įirst, select the top-level drive in the left-side menu, and then click the Partition tab.

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