DWARFS
From Just Solve the File Format Problem
Revision as of 11:37, 15 August 2025 by Anonymoususer852 (Talk | contribs)
Deduplicating Warp-speed Advanced Read-only File System (DWARFS) is a compressed read-only filesystem, developed by Marcus Holland-Moritz. Compared to Squashfs, DwarFS also offers a choice of hashing algorithms,[2] as well as a tool for checking DwarFS image via dwarfsck. At maximum compression levels using LZMA, DwarFS (using --compression=lzma:level=9:extreme) can produce smaller file size compared to SquashFS with the rough equivalent of using XZ as -comp xz.
See also Squashfs.
Examples
Create an extremely compressed DwarFS image, without history, all root owned contents, sha3-512 hash algorithm, idle task (lowest priority) from present directory to example.dwarfs:
mkdwarfs --input . --output=example.dwarfs --block-size-bits=26 --compression=lzma:level=9:extreme --compress-niceness=10 --schema-compression=lzma:level=9:extreme \ --metadata-compression=lzma:level=9:extreme --no-history --pack-metadata=all,force --file-hash=sha3-512 --set-owner=0 --set-group=0 --no-history-timestamp \ --no-create-timestamp --no-history-command-line
