I just attempted to upgrade my 2017 iMac to Monterey (from Big Sur 11.4) and it got about 85% done and hung up with 52 mintues to go! In reading other posts, I tried to get a clue to the problem by Ctl+L and here's what it said:
Means nothing to me except that it's hung up and tried its best to fix itself but failed. What can I do now to either complete the upgrade or cancel and return to Big Sur?
Thanks.
iMac 27″ 5K, macOS 11.4
This can happen when a very large file such as this gets corrupted during the download. I would put the file into the Trash and empty it, then do another clean download. That means using a wired Ethernet connection. Not Wi-Fi as it is too slow and often fails. In my experience a Monterey upgrade download can take up to an hour to download and another 45 minutes, more or less to install with multiple automatic restarts.
This can happen when a very large file such as this gets corrupted during the download. I would put the file into the Trash and empty it, then do another clean download. That means using a wired Ethernet connection. Not Wi-Fi as it is too slow and often fails. In my experience a Monterey upgrade download can take up to an hour to download and another 45 minutes, more or less to install with multiple automatic restarts.
SSorry, just realized the screen shot for the installation issue didn't come through.
Thanks. That makes sense and I'll give it a try.
Monterey upgrade hangs on installation
