wimlib

No worries, for hypervisor backups I'll revert to borg or rsync then. Having block level dedup would be nice, but that's also probably outside of .wim spec I'm guessing.

Hi, I'm attempting to backup a virtual machine host (and yes I understand the pitfalls of backing up at a hypervisor level).

It appears that wimlib is backing up the whole VHDX without suitable deduplication, is there a setting to have it incrementally backup a very large file with small changes ...