Having trouble creating a boot installer

Tom Wolsky wrote:

Really? An M4 mini that came with 15.1 factory installed?

That's probably the problem. New computers often come with custom OS builds. You will need to wait for the next major update, like 15.2 before your computer gets back on the mains. Don't try to erase it until then. In theory, Internet Recovery will still work. If not, then DFU, with the appropriate, custom IPSW will work, again, in theory.

Been like this since the age of the dinosaurs.

I found a solution. You need to give administrator rights to the terminal or the console app you are using. The method is to add the terminal or console app directly to the disk-wide access rights, and rebooting after this operation is absolutely necessary.

@Tom Wolsky

My point of reference for earlier posting

Some would use M3, M2 and Intel Machines do not experience this Bootable Installer issue

While M4 machines, so far, have had this issue

Bootable USB creation FAIL on M4 Mac mini… - Apple Community

Tom Wolsky wrote:

I tried to run the Terminal installer script but I got this at the end:

Copying essential files...

Copying the macOS RecoveryOS...

Making disk bootable...

Failed to extract AssetData/boot/Firmware/Manifests/InstallerBoot/* from update bundle

The bless of the installer disk failed.

Does that mean the downloaded installer is corrupt, and I need to redownload?

Thanks very much.

PS the boot jump drive Is completely blank. Nothing written to it.

There is a known issue with creating bootable installer using macOS Sequoia.

To be proactive you can file a bug report / submit your Apple Feedback here: Product Feedback - Apple

Even giving Terminal " Full Disk Access " from Privacy and Security Before attempting to create the Bootable Installer it still failed "

Bootable USB creation FAIL on M4 Mac mini… - Apple Community

If I did not know better . . .

Only for Information purposes 😎

This M4 Mac Mini arrived from Apple with

macOS 15.0  ( 24A8332 )

Subsequently >> macOS 15.1  ( 24B2083 )

So perhaps you are right 👍 and need to wait for the next major build

Thanks for the insights

Possible and obviously since it arrived that way

Though, I do remember @VikingOSX having done the Early Pre-Order process

They did mention, their's arrived and Immediately on Initial Boot Up and even before the Initial Setup

Was presented with " There is an Update available " alert

So, If I may ask

Was this M4 Mac Mini Pro part of the Early Pre-Order process ?

From personal experience on a M4 Mac Mini, @leyroydoulas is very correct

Have moved this up the appropriate " Food Chain " for review

I've had the same issue and reported this to Apple. I'm not sure what kind of feedback they'll get.

Self correct and sorry @ leroydouglas for getting your user name incorrectly spelled, Mia Culpa 😔