Create bootable osx usb for mac how to#
Create bootable osx usb for mac mac os#
Create bootable osx usb for mac install#

Create bootable osx usb for mac install#

pkg file which if you open tries install that OS, but naturally renders an error as you're trying to install an older OS on a newer OS. They say to use Terminal to use a /createinstallmedia command, but are referring to an Install app in the Applications folder, which just does not exist.

Their instructions to actually make the bootable USB drive using that.

Create bootable osx usb for mac how to#

There are instructions online for how to get a hold of the install files for older macs, such as. My current mac is a Mini 2018 running macOS Big Sur, and this computer is the one I have to make this bootable USB installer for my older mac. Once the dd command finishes its process, you may see a dialogue box saying: The disk you inserted was not readable by this computer.In short, I have an older Macbook Pro mid 2010, for which I've forgotten its login, so I have to, and want to, just do a fresh install of the latest OSX it can run, which is High Sierra. Step 6: Complete the bootable USB drive process It will take a few minutes for the process to complete. Similar to Linux, you won’t see any asterisks or something to indicate that you have entered some keyboard input, but that’s the way Unix terminal behaves.Įven after you enter the password, you won’t see any immediate output and that’s normal. For me the command was like this: sudo dd if=~/Downloads/ of=/dev/rdisk2 bs=1mĪs we are running the above command with super user privileges (sudo), it will require you to enter the password. I hope you remember where you put the converted IMG file, in step 3. Here, we are using dd (copy and convert) to copy and convert input file (if) IMG to diskN. Use dd command in the following manner to create live USB: sudo dd if=/Path-to-IMG-DMG-file of=/dev/rdiskN bs=1m

Create bootable osx usb for mac mac os#

Therefore, do remember the correct device number of your USB drive or else you might end up corrupting Mac OS X. We shall be using dd command which is a very powerful and must be used with caution. Step 5: Creating the bootable USB drive of Ubuntu in Mac OS XĪnd finally we come to the final step of creating the bootable USB drive. The result should be: Unmount of all volumes on disk2 was successful. So, in my case, the above command becomes: diskutil unmountDisk /dev/disk2 Where N is the device number for the USB you got previously. When you got the disk number, run the following command: diskutil unmountDisk /dev/diskN So for me, the command is like this: hdiutil convert -format UDRW -o ~/Downloads/ubuntu-14.10-desktop-amd64 ~/Downloads/ Normally the downloaded file should be in ~/Downloads directory.

Open a terminal, either from Launchpad or from the Spotlight, and then use the following command to convert the ISO to IMG format: hdiutil convert -format UDRW -o ~/Path-to-IMG-file ~/Path-to-ISO-file This can be easily done using hdiutil command tool. The file you downloaded is in ISO format but we need it to be in IMG format. Ubuntu 14.04 is the latest LTS version, and this is what I would recommend to you. Since you are using a Macbook Air, I suggest you to download the 64 Bit version of whichever version you want. Jump to Ubuntu website to download your favorite Ubuntu desktop OS.

Of course, you need to download ISO image of Ubuntu desktop. Of course hit the Partition button to format the USB drive.

It will give you a warning message about formatting the USB drive. When all is set to go, just hit the Apply button.