You can make a Sonoma bootable USB installer by first formatting a 16GB or 32GB usb as Mac OS Extended (Journaled) and naming it Untitled.
After downloading the Sonoma Beta 1 installer (which so far is nameless, even though we now know it has the name Sonoma) you can run this in Terminal to make the bootable USB:
sudo /Applications/Install\ macOS\ 14\ beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
The command for future betas will probably change to
sudo /Applications/Install\ macOS\ Sonoma\ beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
and then with public release (or even release candidates) to
sudo /Applications/Install\ macOS\ Sonoma.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
To get the full installer for beta 1 you can search the sucatalogs for InstallAssistant.pkg and look for ProductID 032-94352 to get the link.
To verify the link you can change the g at the end of it to m and download the pkm file, open in textedit and you will see
….version="23.0.5257.17”….
How to read this is that the second number 0,1,2, … etc stands for A,B,C, etc and the fourth number 1,2,3, etc stands for a,b,c, etc.
They will drop the fourth number for release candidates and public releases. Such numbers are only for the betas.
So the second number 0 is A and the fourth number 17 is q and hence the build number is 23A5257q
Just be aware that future betas will have different Product IDs.
For the first beta the installer file looks like this:
which you will find in your Applications folder after running the Beta 1 InstallAssistant.pkg.
After downloading the Sonoma Beta 1 installer (which so far is nameless, even though we now know it has the name Sonoma) you can run this in Terminal to make the bootable USB:
sudo /Applications/Install\ macOS\ 14\ beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
The command for future betas will probably change to
sudo /Applications/Install\ macOS\ Sonoma\ beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
and then with public release (or even release candidates) to
sudo /Applications/Install\ macOS\ Sonoma.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
To get the full installer for beta 1 you can search the sucatalogs for InstallAssistant.pkg and look for ProductID 032-94352 to get the link.
To verify the link you can change the g at the end of it to m and download the pkm file, open in textedit and you will see
….version="23.0.5257.17”….
How to read this is that the second number 0,1,2, … etc stands for A,B,C, etc and the fourth number 1,2,3, etc stands for a,b,c, etc.
They will drop the fourth number for release candidates and public releases. Such numbers are only for the betas.
So the second number 0 is A and the fourth number 17 is q and hence the build number is 23A5257q
Just be aware that future betas will have different Product IDs.
For the first beta the installer file looks like this:
which you will find in your Applications folder after running the Beta 1 InstallAssistant.pkg.
Last edited: