snippetbashTip
btrfs check — Check or repair a btrfs filesystem. More information: <https://btrfs.readthedocs.io/en/latest/btrfs-
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linux
Problem
How to use the
btrfs check command: Check or repair a btrfs filesystem. More information: <https://btrfs.readthedocs.io/en/latest/btrfs-check.html>.Solution
btrfs check — Check or repair a btrfs filesystem. More information: <https://btrfs.readthedocs.io/en/latest/btrfs-check.html>.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}}Code Snippets
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}}Context
tldr-pages: linux/btrfs check
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