I have set the option “backup-test-samples” to a certain amount, that more time is used to verify the files regularly. Tonight, I have got this message:
Failed to process file duplicati-bcbff1aa2e0f54231bd8f608822878dee.dblock.zip.aes
I manually downloaded the file and tried to extract it with AESDecrpyt, and indeed, the file seems to be corrupted:
“Error: Message has been altered and should not be trusted”
Which options do I have no? Of course I could delete the whole backup and start from scratch, but is there any way to repair this file somehow without starting a complete new backup?
There is no sure way to rebuild lost dblock files because they contain source data, and it may have changed.
What sort of destination is this, what is the file size, and what is the file date? New might have better chance.
Best case (although it seems unlikely based on your test method) would be if it’s from the very latest backup.
You can also see how far back the data in the corrupted file goes using commands run in GUI Commandline.
Run The AFFECTED command for duplicati-bcbff1aa2e0f54231bd8f608822878dee.dblock.zip.aes
If it affects old files, then Recovering by purging files is probably the way out, but first let’s check the situation.