Thanks!  That does sound very similar.  I'll try the approach that the 
easyBackup page suggested, and see if it helps.

        Steve

On 2/14/23 12:28 PM, Martin Simmons wrote:
If Nextcloud works like OneDrive, then it could be caused by the problem
described here:

https://eazybackup.com/knowledge-base/error-media-is-write-protected-backing-up-onedrive-with-vss/



On Sat, 11 Feb 2023 10:52:29 -0500, Steven A Falco said:

I have been using Bacula to back up a Windows 10 virtual machine client in 
addition to a number of physical Linux clients without any problems for several 
years.

Recently I upgraded the win10 vm to Windows 11, and I am now getting an error 
message from the VSS snapshot system.  I don't know if this is a permission 
problem.  I also don't know how serious it is - is just one file affected, or 
is all of C:\ affected?

The error message is a bit confusing, because it says there is a read error on 
the file and the media is write protected.

I've tried deleting shadows using vssadmin but that didn't help.  The file that 
is triggering the error is on a Nextcloud shared directory, but that was 
working fine with win10.

I'm not sure how to troubleshoot this.  Any guidance would be appreciated.

        Steve

11-Feb 09:59 saf-sd JobId 22162: Ready to append to end of Volume 
"v1_0007_0017" size=40,122,007,412
11-Feb 09:59 win11-fd JobId 22162: Generate VSS snapshots. Driver="Win64 VSS"
11-Feb 09:59 win11-fd JobId 22162:     Snapshot mount point: C:\
11-Feb 10:01 win11-fd JobId 22162: Error: Read error on file 
//?/GLOBALROOT/Device/HarddiskVolumeShadowCopy9/Users/sfalco/Nextcloud/SMS/sms-20230211004914.xml.
 ERR=The media is write protected.

11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "Task Scheduler 
Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "VSS Metadata Store 
Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "Performance 
Counters Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "System 
Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "WMI Writer", 
State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "MSSearch Service 
Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "ASR Writer", 
State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "Shadow Copy 
Optimization Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "COM+ REGDB 
Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 win11-fd JobId 22162: VSS Writer (BackupComplete): "Registry 
Writer", State: 0x1 (VSS_WS_STABLE)
11-Feb 10:03 saf-sd JobId 22162: Elapsed time=00:04:05, Transfer rate=37.48 M 
Bytes/second
11-Feb 10:03 saf-sd JobId 22162: Sending spooled attrs to the Director. 
Despooling 267,081 bytes ...
11-Feb 10:03 saf-dir JobId 22162: Bacula saf-dir 13.0.1 (05Aug22):


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