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GNU System Workarounds - BTRFS - Increase Metadata

Guide from: https://unix.stackexchange.com/questions/347487/how-do-i-expand-btrfs-metadata

  • Basically, you add a new device to the filesystem - a virtual device - a loop device.
  • Then you start balance (you could start with empty chunks, slowly increasing chunk sizes, or do it all the way)
  • Then you remove the device from the filesystem and delete the loop device

NOTE: The unallocated space is useful.

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