You have attempted to change the block-size on an existing backup, which is not supported. Please configure a new clean backup if you want to change the block-size.
I have not changed the block size. I’ve double checked and it is still set to the default of 100kb. I’ve tried adding it as an advanced option set to 100kb, no change.
How can I convince duplicati that the block size is the same as it always has been?
Hmm… That would indeed work, though technically I think it’s possible to have a block SMALLER than the set parameter size.
I feel the “attempted to change the block size” message should include what blocksize the backup is using. That way if a user has lost their config on a custom blocksize job they’ll know what to use.
@chmac, the only thing I can think of is to do what Pectojin suggested or run a SQL select on the .sqlite database to see what Duplicati THINKS is the block size.
Other than that it’s possible the database got corrupted somehow.
Thanks for all the support, I really appreciate it.
I opened the sqlite file for that backup.
SELECT * FROM Configuration;
blocksize|102400
blockhash|SHA256
filehash|SHA256
Interestingly, today I got a different error. Perhaps the blocksize was corrupted somehow and since my experimenting it’s somehow been set back to 100kb. No idea how it happened or what fixed it, but fingers crossed the issue has been resolved. I’ll assume my backup will run successfully tonight, but will post again if not.