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ERROR_EAS_NOT_SUPPORTED
Extended attributes are unavailable on this filesystem
ERROR_EAS_NOT_SUPPORTED is a Win32 result associated with portable applications storing metadata.
What the result means
The mounted filesystem does not support extended attributes required by the operation.
What to check
- Identify the filesystem and mount options of the destination.
- Check whether the operation can use a sidecar file, database, or alternate metadata mechanism.
- Do not assume support merely because the source filesystem provides EAs.
- Preserve required security metadata during copy or migration.
Recommended handling
Use a documented fallback or reject the destination when the attributes are essential. Silently dropping security or integrity metadata can change the meaning of the copied object.
References
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