Sonoma 14.2 not installing

I'm having same problem. Just tried updating my M1 MBP twice in a row.....each time I get the white apple on black background, but it's gone again way too fast to be a dot OS update, and then it restarts, and then.....14.1.

Complete OS update failure.

Where in the update process are you? Don't restart it if it is showing an apple logo with a progress bar, if this is the case wait for it to finish. How long is the update still installing? You might want to wait a little

I had to restart the install 3 times .. and it downloaded the update each time!

eventually instead of clicking on the restart now button in System settings - but the one in the top right (it has a 60 second countdown to auto reboot) .. after that my machine updated ok

jrmyeh wrote:

I ended up restarting into Safe Mode, after which the update worked.

I still don't know why it wouldn't work the normal way.

If the install worked fine in Safe Mode, this typically indicates 3rd party software in interfering with a normal installation.

Do you have any anti-virus, Mac "Cleaner", Mac "Optimizer" or VPN software installed? If so, I recommend you uninstall them with the vendors' uninstaller. They simply aren't needed on a Mac, and almost always create issues rather than prevent them. (The only use case for VPN would be if it's needed to connect your Mac to a corporate system that requires VPN).

I have now attempted to install Sonoma 14.2 THIRTEEN times but after each attempt my computer remains stuck on Ventura 13.3.1 (a). I have tried Safe Mode and removing unwanted apps and disconnecting hardware but all to no avail. My computer is a Mac Mini 2 (bought new in March 2023) with a new Studio Display. I expect much better than this from Apple after spending so much money. Who may I contact for advice?

Wait a little? it's stuck for hours at 5%-10% of the loading bar, not moving one millimeter in 2 hours or more, is that normal ?

I ended up restarting into Safe Mode, after which the update worked.

I still don't know why it wouldn't work the normal way.