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The bootable installer will be like a Recovery Partition, you have Disk Utility there and will be able to format your drive.

You just need to choose "Install macOS Sequoia" to boot from.
Already I boot with it, as @Mike said I would try to select itself to install and then change to find out the Recovery

After all I have thought that in macos M2 there is a option to reset the system as factory. Maybe this is the option that Apple want you do, no option to downgrade but make a fresh installation without any USB bootable or whatever
 
Already I boot with it, as @Mike said I would try to select itself to install and then change to find out the Recovery

Afraid I don't really understand this sentence.

After all I have thought that in macos M2 there is a option to reset the system as factory. Maybe this is the option that Apple want you do, no option to downgrade but make a fresh installation without any USB bootable or whatever

Yes Erase all Content and Settings will delete the -Data volume and reboot the machine as if it was a new out-of-the box machine, BUT because 15.4 beta has previously been installed, the firmware and hidden partitions will be 15.4, so if you boot to Recovery and "Reinstall macOS" it will reinstall the 15.4 beta. That is why to downgrade macOS you have to use a bootable installer for the version you want to downgrade.

Full release of 15.4 is not far off now and you don't seem to be in a hurry, so perhaps wait for 15.4 release? I don't think you have said why you want to downgrade.
 
Afraid I don't really understand this sentence.



Yes Erase all Content and Settings will delete the -Data volume and reboot the machine as if it was a new out-of-the box machine, BUT because 15.4 beta has previously been installed, the firmware and hidden partitions will be 15.4, so if you boot to Recovery and "Reinstall macOS" it will reinstall the 15.4 beta. That is why to downgrade macOS you have to use a bootable installer for the version you want to downgrade.

Full release of 15.4 is not far off now and you don't seem to be in a hurry, so perhaps wait for 15.4 release? I don't think you have said why you want to downgrade.

The Recovery Partition is normally never updates to beta version. I startet with Developer Beta 1 of 15.0 on my M3 iMac and months later already in the 15.2 betas it was still on a 14.x version. If I never used a full installer of a release version it even might be still there.

I'll look for that now... Just don't know how I find out what the exact version is.

I am now on 15.4 Beta 4.

Edit: I was wrong, when I want to reinstall it's a Sequoia Beta, maybe it only was in the earlier beta or even before the final 15.0 was released. There was a 15.1 beta before the release of 15.0 if I remember correctly. Maybe I am confusing it with that. At least it always said reinstall Sonoma when I looked back then and that wasn't possible because of being a downgrade.
 
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Afraid I don't really understand this sentence.
Some post before you write
“select the Bootable installer (in the middl)e and press continue. It will boot to the installer and you will see the screen like in Recovery.”

The quesrion is that the aceren I share its not the boot menu, its the installer select screen where I can’t find the recovery menu to format the volume

Guessing you advice to choose the bootable volume (in grey icon) to force a recovery menu. The fact is that I don’t try it already, but I will
 
Full release of 15.4 is not far off now and you don't seem to be in a hurry, so perhaps wait for 15.4 release? I don't think you have said why you want to downgrade.
I wanted to downgrade because 15.4 beta 1 and 2 broke OpenMTP and Citrix and because for some reason I still don’t get apple intelligence in the menu

Beta 4 fix Citrix and OpenMTP but still no AI, so maybe I use the erase to factory when final version arise

Other problem to me is that indexing not works well. Spotlight don’t shows the Application while I searching even after force it with Onyx
 
I wanted to downgrade because 15.4 beta 1 and 2 broke OpenMTP and Citrix and because for some reason I still don’t get apple intelligence in the menu

Beta 4 fix Citrix and OpenMTP but still no AI, so maybe I use the erase to factory when final version arise

Other problem to me is that indexing not works well. Spotlight don’t shows the Application while I searching even after force it with Onyx

There are a lot of reasons why Apple Intelligence might not be available, especially if not in US. Presumably you have checked all the language settings in both Siri and Device as in this article.

No suggestions about Spotlight, but assume you have tried Disk First Aid and booting in to Safe Mode. Also Rebuilding the Spotlight Index.
 
Some post before you write
“select the Bootable installer (in the middl)e and press continue. It will boot to the installer and you will see the screen like in Recovery.”

The quesrion is that the aceren I share its not the boot menu, its the installer select screen where I can’t find the recovery menu to format the volume

Guessing you advice to choose the bootable volume (in grey icon) to force a recovery menu. The fact is that I don’t try it already, but I will

How did you create your Bootable USB installer ? Did you use the Terminal method as in this article, or the excellent free third party tool Mist. MDS app used to do it free but is now vey expensive. Unless you used one of these methods you don't have a bootable USB installer and won’t see the screen like in Recovery.

It sounds to me like you just put the Installer app on a USB stick which would just open the Installer.
 
There are a lot of reasons why Apple Intelligence might not be available, especially if not in US. Presumably you have checked all the language settings in both Siri and Device as in this article.

No suggestions about Spotlight, but assume you have tried Disk First Aid and booting in to Safe Mode. Also Rebuilding the Spotlight Index.
15.4 beta open AI to Spanish language, even if I change the language I don't get it to install. I will wait to final release
 
How did you create your Bootable USB installer ? Did you use the Terminal method as in this article, or the excellent free third party tool Mist. MDS app used to do it free but is now vey expensive. Unless you used one of these methods you don't have a bootable USB installer and won’t see the screen like in Recovery.

It sounds to me like you just put the Installer app on a USB stick which would just open the Installer.
sudo /Applications/Install\ macOS\ Sequoia.app/Contents/Resources/createinstallmedia --volume /Volumes/NO\ NAME

As usual

My Mac is M2. With Intel Mac I did a lot of re installs, downgrades or whatever, in fact I had a "unsupported Mac" and did the "magic" to upgrade a "unsupported Mac".
The fact is that as I expect, after choose USB Sequoia Installer in boot menu I don't get the "Recovery screen to format the primary SDD" and I can't choose the bootable USB. The only way was install it in a external SSD, boot, format internal SSD and then re load the bootable USB to install over a formatted SSD
 
sudo /Applications/Install\ macOS\ Sequoia.app/Contents/Resources/createinstallmedia --volume /Volumes/NO\ NAME

As usual

My Mac is M2. With Intel Mac I did a lot of re installs, downgrades or whatever, in fact I had a "unsupported Mac" and did the "magic" to upgrade a "unsupported Mac".
The fact is that as I expect, after choose USB Sequoia Installer in boot menu I don't get the "Recovery screen to format the primary SDD" and I can't choose the bootable USB. The only way was install it in a external SSD, boot, format internal SSD and then re load the bootable USB to install over a formatted SSD

Not really understanding. Why have you used OCLP for unsupported Mac ? (EDIT or was that just referring to your Intel iMac?) Might be why your bootable USB is not showing you the normal Recovery options.
At a loss why your bootable USB installer isn’t working normally.
 
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Not really understanding. Why have you used OCLP for unsupported Mac ? (EDIT or was that just referring to your Intel iMac?) Might be why your bootable USB is not showing you the normal Recovery options.
At a loss why your bootable USB installer isn’t working normally.
I try to tell that I know the process for many years and I have done without problem choosing the installer menu and formatting the primary sdd

The question is that I guess that with M2 there is more restriction for downgrade and you are not able to do even if the macOS is still signed

What you explain before is a known process what I can’t apply in my case, there is no option to select the ssd and formatting, apple don’t offer this option any more as before

IMG_7232.jpeg
 
I try to tell that I know the process for many years and I have done without problem choosing the installer menu and formatting the primary sdd

The question is that I guess that with M2 there is more restriction for downgrade and you are not able to do even if the macOS is still signed

What you explain before is a known process what I can’t apply in my case, there is no option to select the ssd and formatting, apple don’t offer this option any more as before

View attachment 2494857
I don't have an M2 currently but bootable installers still work normally on my M1 and M3 Macs. Including booting to a bootable installer for older version of macOS

Just checked the above on my M3 and realise what might be happening for you. When you boot to the bootable USB it does indeed initially launch the installer as you describe....BUT you then have to quit the installer from the menu at top left, and then the normal Recovery screen appears. Apologies for not mentioning this before.

But you say you have used bootable installers before so I would think you know this, although I didn't mention it before
.

EDIT Re-reading I realise you know all this but for some reason your M2 is not behaving normally and I am out of ideas. I am sure it is not a general problem with M2 Macs. I did own an M2 Mac until three months ago and bootable installers worked fine on it.
 
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I don't have an M2 currently but bootable installers still work normally on my M1 and M3 Macs. Including booting to a bootable installer for older version of macOS

Just checked the above on my M3 and realise what might be happening for you. When you boot to the bootable USB it does indeed initially launch the installer as you describe....BUT you then have to quit the installer from the menu at top left, and then the normal Recovery screen appears. Apologies for not mentioning this before.

But you say you have used bootable installers before so I would think you know this, although I didn't mention it before
.

EDIT Re-reading I realise you know all this but for some reason your M2 is not behaving normally and I am out of ideas. I am sure it is not a general problem with M2 Macs. I did own an M2 Mac until three months ago and bootable installers worked fine on it.

@alfon_sico ....I am nagged by the thought that you have been forgetting to quit the installer to get the Recovery screen, after booting to the bootable installer.
 
Ops this is shy, you’re true.
That’s the key, if I force exit that window from the menu I got recovery menu and I can use disk utility

Thank you for your patience
 
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