btrfs-rescue:tldr:7f54d

btrfs-rescue: Rebuild the filesystem metadata tree (very slow).

btrfs

$ sudo btrfs rescue chunk-recover ${path-to-partition}

try on your machine

The command "sudo btrfs rescue chunk-recover ${path-to-partition}" is used to recover or repair a Btrfs file system chunk on a specific partition.

Here's a breakdown of the command:

"sudo": It runs the command with administrative or root privileges. This is necessary as Btrfs recovery operations require elevated permissions.
"btrfs": It is the command to interact with and manage Btrfs file systems.
"rescue": It denotes that the following command is related to the rescue or recovery operation.
"chunk-recover": It specifies the specific type of recovery operation to be performed, which is chunk recovery in this case. A chunk refers to a range of data blocks within the Btrfs file system.
"${path-to-partition}": It is a placeholder for the actual path or device of the partition where the Btrfs file system is located. You need to replace "${path-to-partition}" with the correct path or device name, for example, "/dev/sda1".

When executed, this command initiates the Btrfs chunk recovery process on the specified partition, attempting to recover or repair any faulty or missing chunks within the file system.

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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