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EADV
EADV is a historical remote-file-sharing errno meaning “Advertise error”. It comes from older distributed Unix vocabulary rather than from common modern Linux networking APIs. Linux retains the name and number in its generic errno definitions for compatibility.
If this value appears today, first identify the compatibility layer or old interface that still uses advertise/unadvertise semantics. Do not diagnose it as a web, DNS, or package repository issue just because the word “advertise” appears in the message.
What to capture
- The remote filesystem or compatibility service that attempted the advertise operation.
- The resource name being exported or registered.
- Registration conflicts, service discovery logs, and mount-table state.
Linux errno(3) · Linux UAPI errno definitions
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