Blog/Btrfs-progs v6.9 released

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Btrfs-progs v6.9[edit | edit source]

Btrfs progs v6.9 has been released, bringing several fixes and changes. Notably fixes btrfs receive on architectures requiring strict alignment (ARM v5, ARM v6)

The sources are available at


  • mkfs:
    • if --force used, don't continue if the mount status cannot be determined (e.g. due to permissions)
    • fix minimum size calculation on zoned devices, make it work with option -b
  • check:
    • option --clear-ino-cache removed (functionality still provided in 'rescue' command group)
    • detect and repair wrong file extent item ram_bytes value
  • qgroup clear-stale:
    • sync the filesystem before search to read the up to date state
    • handle cases where qgroup cannot be deleted due to uncleaned subvolume or when squota is enabled
  • qgroup show: display status of qgroup regarding the cleaning of the subvolume or if it's squota
  • receive: fix stream parsing on strict alignment hosts (e.g. ARM v5 or v6)
  • tune change-csum: fix check of dev-replace status item, continue if no dev-replace in progress
  • dump-tree: print contents of dev-replace status item
  • convert: fix extent iteration to handle prealloc/unwritten extents
  • libbtrfsutil:
    • patchlevel version update 1.3.1
    • fix potentially unaligned access to send stream
    • create library links to all version levels
  • libbtrfs:
    • patchlevel version update 0.1.3
    • fix potentially unaligned access to send stream
    • create library links to all version levels
  • build:
    • fix compatibility with e2fsprogs 1.47.1
    • fix header file dependency tracking
    • -O2 by default
  • other:
    • new and updated tests
    • ASAN and UBSAN test coverage in CI
    • documentation updates

Static builds for aarch64, riscv64 and x86_64[edit | edit source]

As usual there are static builds for ARM64, x86_64 and RISC-V systems available.

You can find all the current builds at

For more information about static builds and why you would use them, check out the dedicate wiki page Btrfs/Statically_built_btrfs-progs