Since the release of Monterey beta 4 last night, I have been trying install the beta. It never completes and - in best base - hangs on "25 minutes remaining", after download.
I run a MBP 13" M1 and upgrading from beta 3.
Anyone experience similar challenges ?
-Michael
Had the same problem. Update was not progressing anymore with “25 minutes remaining”. Waited more than an hour. Then I restarted and tried again. And then the same again. Did not help, always stuck at the same position.
What helped and made it possible for me to successfully install the update was force quitting the “Updatebrainservice” using the activity monitor.
I waited a few minutes after starting the update until there was almost no drive reads and writes anymore with "25 minutes remaining". The “Updatebrainservice” still had a high CPU usage. Waited a bit longer and then force quit the process. Shortly afterwards the update process continued. The “MobileSoftwareUpdate.UpdateBrainService” was doing all the work now. It still took a long time but with a visible progress.
