Claude recovers 41 TB of BTRFS data
An engineer used Claude to restore a 41 TB filesystem thought to be hopelessly corrupted after ten months of dual-OS mounting. Standard BTRFS recovery tools had failed.
In a Claude Code session, the model analyzed the disk structure and found two coexisting transaction histories. The active filesystem was intact but lacked pointers from the superblocks. Claude manually rebuilt damaged metadata, recovered 19 destroyed nodes, and redirected superblocks to the correct transaction history.
The filesystem mounted read-only without errors. Zero bytes were lost. The effort took one evening, including verification of 4 million metadata entries and creation of tools to manually assemble nodes.
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Claude Code v2.1.166: resilience and security
Claude Code v2.1.166 introduces a fallback model chain. Users can now specify up to three backup models to take over if the primary model is down or overloaded. The update also closes a security hole in inter-session messaging. External permission requests no longer inherit user trust.
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