btrfs check

linux

Check or repair a btrfs filesystem.

Options (3)

boolean

Check a btrfs filesystem

Example: sudo btrfs {{[c|check]}} {{path/to/partition}}

-p, --progressboolean

Show the progress of the check

Example: sudo btrfs {{[c|check]}} {{[-p|--progress]}} {{path/to/partition}}

-s, --superboolean

Use the `n`-th superblock (`n` can be 0, 1, or 2)

Example: sudo btrfs {{[c|check]}} {{[-s|--super]}} {{n}} {{path/to/partition}}

Check a btrfs filesystem

sudo btrfs [c|check] path/to/partition

Check and repair a btrfs filesystem (dangerous)

sudo btrfs [c|check] --repair path/to/partition

Show the progress of the check

sudo btrfs [c|check] [-p|--progress] path/to/partition

Verify the checksum of each data block (if the filesystem is good)

sudo btrfs [c|check] --check-data-csum path/to/partition

Use the `n`-th superblock (`n` can be 0, 1, or 2)

sudo btrfs [c|check] [-s|--super] n path/to/partition

Rebuild the checksum tree

sudo btrfs [c|check] --repair --init-csum-tree path/to/partition

Rebuild the extent tree

sudo btrfs [c|check] --repair --init-extent-tree path/to/partition