I keep getting 'command not found after inputting my password? Can anyone help?

citlalli08 wrote:

  sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Password:

sudo: /Applications/Install macOS Big Sur.app/Contents/Resources/createinstallmedia: command not found

citlalliguardado@Citlallis-MBP ~ % 

There are many reasons why the Terminal might throw up the generic error 'command not found'

Is your machine capable of running Big Sur...this maybe a stumbling block...

Is the "Install macOS Big Sur.app" in the default location, ie the Applications folder?

Is it the full installer(?) should be ~ 12-15 GB in size...

Is that the name of your USB "MyVolume" ?

Psswds are case sensitive, verify your CAPs lock is not on...

You can always copy & paste:

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume

(notice the trailing blank space, now drag and drop your USB onto the Terminal Window to complete the path if in doubt)

How to create a bootable installer for macOS - Apple Support

You are not entering the command correctly.

Copy your Terminal from when you enter the command down to the command not found error and post it here.

I believe that you'll need to use an admin account to run sudo. Otherwise, the command (to create a bootable installer for Big Sur) looks correct.

- Pie Lover

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Check the Users & Groups System Preference (see below).

- Pie Lover

Is the Big Sur installer in your Applications folder?

Check the size of the installer. If it is in MB, then it is just the stub installer and can't be used to make a bootable installer.

Which OS are you running? If it is pre-Big Sur, you will only get the stub installer from the App Store.