Using Usn policy can cause loss of files

ts678 · May 5, 2024, 12:10am

Care to open a GitHub Issue on this? Otherwise I might, since I’ve got a repro based on your situation.

Thanks for working with me to troubleshoot this.

ZebCorp · May 5, 2024, 12:12am

Well, I think you are much better prepare for a bug report in this case. I haven’t github account anyway…

ts678 · May 5, 2024, 12:49am

github.com/duplicati/duplicati

snapshot-policy USN plus attribute exclude may exclude all selected files

opened 12:48AM - 05 May 24 UTC

ts678

- [x] I have searched open and closed issues for duplicates. - [x] I have searc…hed the [forum](https://forum.duplicati.com) for related topics. ---------------------------------------- ## Environment info - **Duplicati version**: 2.0.7.1 Beta - **Operating system**: Windows 10 - **Backend**: Local folder ## Description [Using Usn policy can cause loss of files](https://forum.duplicati.com/t/using-usn-policy-can-cause-loss-of-files/17878) discovered a bad interaction between these settings that seemingly decides there are no files. Testing with buttons on GUI Source Exclude, it looks like `System files` and `Hidden files` can do it, but `Temporary files` is safe. ## Steps to reproduce 1. Make a test folder somewhere, e.g. C:\tmp\usntest 1. Put a file in it, e.g. A.txt containing an A. 1. Select the file in GUI Source screen tree. 1. In its Exclude section, check System files. 1. In Advanced options, set snapshot-policy to something that will use USN. Of course, you must run as an elevated administrator. 1. Backup. - **Actual result**: No files. Home screen `Source size` is 0 bytes, Restore tree area empty. - **Expected result**: File backed up. If I select the containing folder, e.g. C:\tmp\usntest here, the file gets backup. ## Screenshots ## Debug log Forum has a few. The most worrisome part of a verbose log is when you see: > 2024-05-04 19:46:47 -04 - [Verbose-Duplicati.Library.Main.Operation.Backup.FileEnumerationProcess-ExcludingPathFromAttributes]: Excluding path due to attribute filter: C:\