TrueNAS Scale 25.04.0 Upgrade disaster

admin@truenas[~]$ sudo zpool import WizzPool
[sudo] password for admin: 
cannot import 'WizzPool': I/O error
	Recovery is possible, but will result in some data loss.
	Returning the pool to its state as of Tue May 20 18:20:09 2025
	should correct the problem.  Approximately 4 seconds of data
	must be discarded, irreversibly.  Recovery can be attempted
	by executing 'zpool import -F WizzPool'.  A scrub of the pool
	is strongly recommended after recovery.
admin@truenas[~]$ sudo zpool import -F WizzPool
cannot mount '/WizzPool': failed to create mountpoint: Read-only file system
Import was successful, but unable to mount some datasets
admin@truenas[~]$ 

1 Like