Can someone please give a step by step guide to resolving a "Storage system verify or repair failed 69716" error when trying to upgrade from MacOS Mojave to MacOS Monterey?
It's happening on a MacBook (Early 2016).
Thanks.
My notes on -69716 System verify Storage Repair failed…
on an iMac (late 2012) with a 1TB Fusion Drive.
anyway, long story short... needed to recreate the fusion drive from the recovery terminal (after Backup, of course). After recreation, installation worked fine.
This is definitely a Fusion hardware issue. I think that the drive is bad and needs to be replaced.
If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.
If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.
In Terminal…
diskutil resetFusion
Finally resolved the issue. Thanks to a suggestion on https://macreports.com/storage-system-verify-or-repair-failed-how-to-fix/ that the MacOS upgrade be done incrementally. I upgraded from Mojave to Catalina, Catalina to Big Sur, and finally Big Sur to Monterey.
Hope this is useful to someone out there!
Great work, thanks for the report my friend, :)
Added your post to my notes.
Storage system verify or repair failed 69716
