iso file you downloaded? To fix WiFi we are now going to add this. Remember I told you to also back up the Ubuntu.
Then click install and wait for it to finish, restart and you’re done. If you want to be fancier, you could have one partition mount to /home to use as separate home directory. Locate the previously set up partition and assign it to mount at / and use ext4, pick the smaller partition you created and assign it to be „swap“. It will ask you to erase the disk (you will lose everything), or do „something else“ (this is what we’ll do), which will open the partition manager. Then click „install“ Ubuntu, follow the steps. If you reboot and have your Ubuntu USB plugged in, rEFInd will let you boot into that live Ubuntu, and you can „try Ubuntu“ and go online with it (you really should connect to the internet before installing).
Your Mac will boo with a nice menu that gives you various options.
You should do a quick restart to confirm rEFInd was properly set up. Very straightforward, if in doubt consult the installation instructions at their page. Go to the rEFInd page, download the package, unpack, and from the terminal, execute the install.sh script. To dual boot and switch OSs most conveniently, we’ll install rEFInd boot manager, which has a graphical UI and works without a problem, unlike MacOS‘ own boot manager, which won’t help us enough. Step 2: Installation of Bootmanager rEFInd Optionally, create one for your /home folder. Then what you’re going to do is create one partition for /boot and one for a swap file which should be at least as large as your RAM. What did the trick for me was booting into recovery mode and verifying and repairing the disk from there, and then using the disk utility there to resize the partition. Even after undoing the logical volume setup, I was still unable to create a partition. Note: This is by far the biggest issue I have encountered – I was unable to partition my harddrive.
Please note you will only be able to create a partition for Ubuntu from free drive space, so I highly recommend cleaning up your MacOS installation well in order to maximize free disk space. The harddisk utility in Yosemite is not the greatest, but this is fairly straight forward.
Note: MacBook support in Ubuntu has improved drastically, even from 13.x to 14.x Ubuntu. I am not an engineer or technical person, but I have I would say above average Ubuntu and computer skills, but still I found the landscape of tutorials out there to be a bit lacking, and I think short of official guidelines from Canonical or anything, I want to try to condense the existing tutorial steps, distilling from all of them what – from reading all of them – turns out to be best practice. There are plenty of tutorials out there about installing Ubuntu or other operating systems on a variety of older and newer MacBooks. What I don’t like at all, is MacOS (Yosemite is an improvement, but I still find it to be a highly inefficient and strangely restrictive system), so I decided to dual-boot with Ubuntu 14.10 for a while to see how that works out. Even though it has its downsides ( see previous blogpost), it mostly works reliably, has long battery life and is highly portable. I am mostly happy with the 11″ MacBook Air (2013 model) as my primary workhorse.