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btrfs-check:tldr:a48f4

btrfs-check: Rebuild the checksum tree.
$ sudo btrfs check --repair --init-csum-tree ${path-to-partition}
try on your machine

This command is used to check and repair a Btrfs file system on a specific partition.

  • sudo: The command is executed with administrative privileges.
  • btrfs: The command to interact with the Btrfs file system.
  • check: The subcommand to check the file system for errors and inconsistencies.
  • --repair: An option that tells the command to automatically repair any errors found.
  • --init-csum-tree: An option that initializes the checksum tree for the partition. This is necessary if the partition does not already have a checksum tree.
  • ${path-to-partition}: This should be replaced with the actual path to the Btrfs partition that you want to check and repair.

When executed, the command will run a check on the specified Btrfs partition, repair any issues found, and initialize a checksum tree if required.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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