How to Install and Dual-Boot Ubuntu on Mac
We will use a USB drive for this example. The drive needs a capacity of at least 2GB, and it should be empty. Disk Utility is, unfortunately, a little buggy sometimes. If Disk Utility persistently disagrees with you, try doing the same thing with Terminal and diskutil.
To accomplish that, we will download and install Etcher. This is where things can start to get a little hairy. This will run the installer script. Reboot your Mac to make sure you see the rEFInd boot menu. This is the no-take-backs step. Back up now or forever hold your peace! MacBooks and MacBook Pros only have the one hard drive these days.
To install Ubuntu and dual-boot with macOS, we need to make an Ubuntu partition on our boot drive. It will be overwritten as ext4 by the Ubuntu installer anyway. Make sure you cut off enough of the disk: Again, it would not be unusual to encounter a Disk Utility error here. To get around this, you may need to remove local Time Machine snapshots.
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You can also use Terminal to partition the drive. With all that accomplished, we are finally ready to install Ubuntu on our Mac! Unfortunately, high-quality screenshots were not available for these steps. Select the partition you created on your boot disk earlier. Again, make sure the free space is selected and create a new partition from the remaining free space. If you do, your Mac will almost certainly start up in the Ubuntu partition automatically. We want to use rEFInd as our bootloader so we can select our operating system at each boot. This will be erased by the Ubuntu installer. If you encounter trouble, you may need to either use Terminal to partition the drive instead or clear Time Machine snapshots.
With all that accomplished, we are finally ready to install Ubuntu on our Mac! Unfortunately, high-quality screenshots were not available for these steps. Use all the available free space. Upon completion, your Mac will likely boot into Ubuntu automatically. If so, the GRUB bootloader has taken over: Follow the instructions in this guide to use efibootmgr from within Ubuntu to solve the problem.
There might be a shortcut, though.
You likely need to install additional drivers and software specifically for your Mac model. The best advice is to search out appropriate drivers and software changes for your hardware in particular.
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Unfortunately I think I have bad news. It sounds very much like you erased the entire hard drive and formatted the whole thing for Ubuntu. If so, that means that all your Mac data is gone. I would stop using the computer immediately to avoid overwriting any recoverable files and use a different computer to research the best Linux-based tool for recovering files from a formatted hard drive.
This is as complicated as everything above, and the link you provided assumes people are used to working with Terminal. Could you please update this tutorial? Regarding boot order, there are a number of varying and mutually exclusive situations that can occur after installation, and capturing them all within the context of this tutorial was too broad a topic and would have lead to a fairly confusing conclusion.
How to Install Ubuntu and Dual-Boot macOS - Apple Gazette
The linked resource is the clearest, most effective explanation I could find and will certainly provide guidance. I need to select the port, but i dont know what to do. The main issue here would be a battle for bootloader supremacy between Basecamp and rEFInd, which can lead to a bad situation, sometimes preventing your Mac from properly booting at all. Mixing and matching basecamp and rEFInd is difficult, and you might encounter some wonky booting bugs. What is preventing you from creating a partition on your hard drive?
The whole purpose of creating the partition is really to make a separate chunk of the disk in macOS rather than the Ubuntu installer.
Regardless of whether you create the space for the Ubuntu installation in Disk Utility or in the Ubuntu installer itself, make sure to exercise necessary caution. I would even recommend booting into the clone once to make sure it can save you in the event of an emergency. Thank you for your tutorial! I had troubles just in the end.
While loading the USB, the operative system loads because I hear a sound, but the screen is black. Any suggestion? Thank you in advance. This reminds me of something: I have the same issue as Giovanni above.
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