LZMA (no) Support for Duplicati on TrueNAS

General Docker
1

I just installed Duplicati on TrueNAS as a docker.
I tried to import an existing backup database that was compressed in LZMA.
I get errors that LZMA is not supported and the DB import failed.

Any suggestions besides recompressing the entire backup?

2

Duplicati doesn’t support LZMA compression for importing backup databases. To fix this:

  1. Decompress the LZMA file manually using tools like 7z or lzma to extract the original database, then import it into Duplicati.
  2. Rebuild the backup by creating a new Duplicati set pointing to the existing backup files.
  3. Consider using ZIP compression for future backups, as it’s natively supported by Duplicati.

These are your best options without recompressing the entire backup.