Finally I came across this blog post which refers to a super easy method for making bootable USB drives that comes from some German forums. Creating Bootable USB drives using standard methods on the Ubuntu website didn’t seem to work either. Download macOS Catalina Patcher - Helps you create a bootable USB drive.My Mac Mini has a busted Superdrive, so booting from a DVD wasn’t an option. The utility clone the Recovery system on external USB drive, verify it and make it hidden as a boot partition.Mac, iMac Pro, Mac Mini, MacBook Pro, MacBook Air running on: macOS Sierra 10.Make bootable USB (32-bit)Download the obscure German USB creator from here.Format a USB stick to FAT32 and manauly create the folder structure efi/boot/ inside of it.Copy a 32-bit Ubuntu install ISO (I used 14.04 desktop) and the file bootIA32.efi from the german package into the /efi/boot directory you just created.Rename your 32-bit Ubuntu install ISO you just copied to boot.isoYour USB drive should now look like this: (image taken from my chormebook, the drive is named UNTITLED)Thats it! Now when you restart and hold down Alt, you can select the USB from the list of boot options, no Refit install required. Below are the detailed steps I took to get this working. I spent days sifting through message boards and this was the only method that worked for me. Major kudos to all the authors and contributors in the mentioned blogs and threads for paving the way for this to work. This allowed me to boot and install a 64-bit version of Ubuntu without a DVD drive. Using unetbootin inside the 32-bit Ubuntu, I then made a bootable partition on my hard disk from a 64-bit Ubuntu ISO which could then be booted from the GRUB.However, after the installation finished, and before restarting for the first time, I followed these suggestions and installed and ran the boot-repair utility. None of the available locations worked for me, so I chose Continue without a boot loader.This isn’t quite as scary as it sounds, as you can still boot into your live USB if you restart without the boot loader having to be installed. At some point, I got an error which is something like Could not create boot loader in specified partition, please choose location to install boot loader. I chose to Erase disk and install Ubuntu and let Ubuntu automatically create the new partitions needed and I chose not to use LVM (the default option), as this causes confusion later on when trying to re-partition your drives.Because we’ll be loading the 64-bit live CD from the hard disk, we cannot resize this partition during the installation, as the disk will be in use. I just booted from the 32-bit live USB again, then used gparted to resize my partitions. You’ll have to do some copy and pasting into the terminal, but the instructions are very clear within the installer.Install the new GRUB into the disk where Ubuntu is.Done! After restarting without the bootable USB drive, it goes straight into the GRUB loader and you can launch Ubuntu! (If you messed up a step and GRUB isn’t working, you can always just reinsert your bootable USB, restart the computer, then rerun the boot-repair app)Now that you have a working 32-bit version of Ubuntu, you can use Unetbootin to create a bootable partition on your hard disk to launch the 64-bit Live CD from.First, you must make sure you have enough free space to install the 64-bit version of Ubuntu. Press Recommended repairI selected No RAID when the option asked me if RAID was installed on my hard driveI then opted to uninstall any previous GRUB loader and reinstall a fresh one. It’ll automatically scan your computer and suggest repairs.
![]() ![]() Make A Usb Bit Disk For A Mini Mac Mini HasHere we’ll install UNetbootin, which will be used to create a bootable partition.Use UNetbootin to create a bootable partition from the 64-bit Live CD with the following settings:After the partition is created, reboot the computer when prompted to do so and select UNetbootin from the GRUB options and this will take you into the 64-bit Live CD.Launch the 64-bit Ubuntu Live ISO from the bootable partition and then install it along side your 32-bit install. You’ll have to do some fancy command line partitioning, as the LVM system works very differently, and there are not really any reliable GUI tools to do this.Now restart your computer and enter the 32-bit Ubuntu you just resized in the previous step. If you selected LVM (Logical Volume Management) when installing the 32-bit Ubuntu, you won’t be able to use gparted for this. To run gparted from the Live USB, use the following command in the terminal: Final commentsAll these steps worked for me, and I was dual booting both versions of UbuntuIf anything is unclear here, you can check the links to the blogs and threads I posted above (and again here down below). By the end, you should have both 32 and 64 bit versions of Ubuntu dual booting on your system. Again in the installer, select Continue without boot loader option if the error comes up and install and run the boot-repair utility after to get the GRUB working right. The swap space from the previous 32-bit install will be reused for the 64-bit install, so u don’t need to create a new one. Windows emulator software for mac freeHow to manually create a boot loader with boot-repair in Ubuntu: This tells how you can complete the Unbuntu installation when the boot loader fails to install correctly. x86_64-efi not supported error when trying to boot from USB on mac: The explanation on why the x86_64-efi boot loader wont work on pre-2008 Mac Minis. Making a Bootable USB drive for old Mac Mini: Really good instructions on how to make a bootable USB using the obscure German forums method.
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