Getting this error with a Windows 10 Pro client (New Laptop). Unable to complete a full image backup. It gets 30 or so percent into it and reboots.
Starting unscheduled full image backup of volume “C:”…
Error on client occurred: Error while reading from shadow copy device (1). The request could not be performed because of an I/O device error… Shadow copy \?\GLOBALROOT\Device\HarddiskVolumeShadowCopy2 not present anymore. May have been removed
Time taken for backing up client BITZHOME08: 9h 32m 14s
Backup failed
Not sure if this helps, but I uninstalled the CBT client (Block checking) and installed the regular client. The full image backup completed without any issues.
The information that you used CBT makes this more plausible. I’d be interested in the .dmp file if you find any (bugreports@urbackup.org).
Did you run the CBT in crash consistent mode or not (default)?