Hey guys,
I know for myself when creating install media that A- I dont always remember the terminal commands off hand and B- sometimes googling gets me numerous sites explaining how to but that , like today for me, the syntax or webpage loses characters in the commands when copying and pasting(ie "volumes").
A fail safe way to create is to do the following. Takes a minute but works every-time:
(I am using Catalina beta but the process should the same for every version after sierra)
Step 1: Download macOS Catalina. After Catalina 10.15 launches later this fall, you’ll be able to download it directly from the Mac App Store. Until then, you can download the macOS Catalina developer beta from Apple’s developer portal, or download the macOS Catalina public beta via Apple’s public beta website.
Step 2: After successfully downloading macOS Catalina, the installer will auto-launch. Close the installer.
📷
Step 3: Open Finder → Applications and right-click on Install macOS Catalina Beta and choose Show Package Contents.
Step 4: Open Contents → Resources.
Step 5: Launch 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 noted 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 and enter your password when prompted.
Step 14: Type a ‘y’ to continue when prompted, and press return on the keyboard.
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