Cannot create USB Bootable disc 15.3.1

[t0rqx]

Hi,

I am trying to make a bootable USB disk with Sequoia 15.3.1.

I downloaded the package via the App Store and followed the instructions like I always do on Apples website:

Create a bootable installer for macOS - Apple Support

You can use a USB flash drive or other secondary volume as a startup disk from which to install the Mac operating system. These steps are primarily for system administrators and other experienced users.

support.apple.com

However when i do this I get the message in the terminal:

Installer Sequoia does not appear to be a valid OS installer.

Many post about this on the internet , people suggesting downloading it from an alternative website, which i do not want to.

After that I tried this:

softwareupdate --fetch-full-installer --full-installer-version 15.3.1

But I get an error after it says 100% installed

Does anyone know a fix (from Apple)?

 

[bogdanw]

The links listed by Mr. Macintosh are from Apple:
15.3.1

https://swcdn.apple.com/content/downloads/39/51/072-70706-A_Q2E9RWYCSD/oddej58reimcphudve8mgtxmcjjp0t3cve/InstallAssistant.pkg

https://mrmacintosh.com/macos-sequoia-full-installer-database-download-directly-from-apple/

You can get them from Terminal https://gist.github.com/b0gdanw/44fd5bbe391b4e1db102b7c29ecc59e2

 

[Mike Boreham]

Or just use free Mist app to download (from Apple) and create bootable USB with a few clicks.

Works brilliantly.

https://github.com/ninxsoft/Mist

 

[t0rqx]

Thanks all. Update for some reason trying again did the trick.