Why do you need a bootable USB drive. If you only use Apple software and hardware, you will not need this. But if you want to replace your hard drive, this can come in very handy. How to do it in 3 easy steps. Open Terminal.app.
Before you start, you’ll need a USB 3.0 flash drive with at least 8GB of storage. A USB-C flash drive might be best, especially if you’re a MacBook user. Here are a few USB-C-enabled flash drives found on Amazon:. Because this process will erase the contents of the drive, ensure that there is nothing stored on the drive that you need before beginning.
A USB-C flash drive makes things easy for MacBook users How to create a bootable macOS Mojave 10.14 USB install drive Step 1: Download macOS Mojave. Once Mojave 10.14 officially launches, you’ll be able to download it straight from the Mac App Store. Until then, you’ll need to access the Mojave beta from, or (once available) via. Step 2: Once macOS 10.14 Mojave is downloaded, close the installer that appears using Command (⌘)+Q. Video walkthrough Step 3: Open Finder → Applications and right-click on Install macOS 10.14 Beta and select Show Package Contents.
Step 4: Open Contents → Resources. Step 5: Open a Terminal window via Applications → Utilities → Terminal. Step 6: In the Terminal window type sudo followed by a space. Step 7: Drag createinstallmedia to the Terminal window from the Finder location in Step 4. Step 8: Type -volume followed by a space. Step 9: Open Finder → Go → Go To Folder Step 10: In the Go to the folder box type /Volumes and click Go.
Step 11: Connect your USB drive to your Mac, and it should appear in the Finder window. Step 12: Drag the USB flash drive volume into the Terminal window. Step 13: Press Return on the Keyboard to submit the full command. Step 14: Type a ‘y’ to continue when prompted, and press return on the keyboard. Step 15: The install process will start by erasing the contents of your USB drive and copying the installer files to the drive. The entire process can take a while (around 20-30 minutes).
You’ll need to exercise patience as the install process proceeds. Once the process is completed, you can use the USB flash drive to boot to the macOS Mojave 10.14 installer. Simply connect your USB flash drive, and restart your Mac while holding the Option (⌥) Key. Select the macOS Mojave Installer to get started. What’s changed?
The -applicationpath flag that was used in is now deprecated. Including the flag will show the following warning message prior to creating the boot disk: WARNING: '-applicationpath' is now deprecated. Note: you may see a dialogue menu inquiring about the SetFile command requiring command line developer tools. Choosing Not Now will not disrupt the creation of the USB install drive. For a hands-on look at what’s new in macOS Mojave, be sure to check out our walkthrough of over.
The idea behind a macOS Clean Install When you install a new major version of OS X, or after some time has passed, it is a good idea to do a clean install (that is, to erase the disk you are installing OS X onto as part of the installation process). That will make your Mac run blazingly fast for a few months or more, and many people report that it fixes longstanding problems they’ve had too. It used to be common practice to occasionally run a clean install, and then manually migrate all the files and settings over in order to get a completely fresh start. However, it has been shown in recent times that in the vast majority of cases if you simply run a clean install, then duplicate your old home folder to your new disk, you will get all of the same advantages as a clean install followed by manual migration, with a small fraction of the effort. Mac Clean Install Procedure Here is the clean install procedure which can be performed at least every time a new version of macOS is released:.
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Download the macOS installer from the App Store. You can download macOS High Sierra by clicking. Backup all the data to an external disk with a clone.
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Two options are to use (a free utility which can copy and paste an entire bootable volume), or (a paid, fully featured backup utility with unique incremental backups capability) for that. Create a bootable USB Installer with and boot from it. Erase the startup disk and install macOS onto it. Boot up from this newly created startup disk. Note: The Finder’s built-in “Copy” and “Paste” will not work for the following. Go to the backup disk and use (free) or to right-click and select Copy on the home folder (eg: External Backup/Users/Bob) and then Paste on the Macintosh HD/Users folder on the startup disk.
This migrates all of your personal data and settings to your new home folder. Then migrate the applications by selecting Copy on the External Backup/Applications folder on the backup disk then Paste on the startup disk (eg: Macintosh HD). This will copy all of the applications which are present on the backup disk but not present on the startup disk to your new Applications folder, and automatically skip any applications which are already on the startup disk. At this point, after a reboot and some minor adjustments (the Dock may not have your previous configuration for example, if you did this while logged into the same user account as you just updated), your new OS should be indistinguishable from your previous one, while being faster and smaller due to reduced clutter.