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ENOANO
ENOANO: Linux legacy errno
ENOANO (errno 3) reports that a legacy filesystem or communications interface cannot resolve the requested anode object. These names come from historical System V/XENIX compatibility interfaces; on modern Linux they usually point to a driver, STREAMS-compatibility layer, or legacy IPC contract rather than a general filesystem error.
Evidence to capture
Record anode identifier, owning filesystem/device, lookup call, and object generation.
Focused test
Look up a known-existing anode through the same interface and compare the result.
Correction
correct the stale/missing anode reference or rebuild only the owning metadata if required.
Verification
Repeat the original system call and confirm it passes the former ENOANO boundary with the same object identity.
Technical references
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