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> Check or repair a btrfs filesystem.
Check a btrfs filesystem:
sudo btrfs check {path/to/partition}
Check and repair a btrfs filesystem (dangerous):
sudo btrfs check --repair {path/to/partition}
Show the progress of the check:
sudo btrfs check --progress {path/to/partition}
Verify the checksum of each data block (if the filesystem is good):
sudo btrfs check --check-data-csum {path/to/partition}
Use the `n`-th superblock (`n` can be 0, 1 or 2):
sudo btrfs check --super {n} {path/to/partition}
Rebuild the checksum tree:
sudo btrfs check --repair --init-csum-tree {path/to/partition}
Rebuild the extent tree:
sudo btrfs check --repair --init-extent-tree {path/to/partition}
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