errno 66 (EREMOTE): meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: a legacy remote-object layer reports that the target object is remote.

Could be also:
Constant	Type	OS
ERROR_BAD_DEV_TYPE	Win32 error	Windows
ENOTEMPTY	errno	Mac
EREMOTE	errno	Solaris
ATDISK_DRIVER_INTERNAL	BugCheck Code	Windows

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ENOPKG	ENOLINK

EREMOTE

EREMOTE is a legacy errno for “Object is remote”. It is useful when code needs to distinguish a local VFS object from an object managed by a remote or distributed layer. It is not the same as EREMOTEIO, which reports a remote I/O failure.

In Linux, treat this as evidence about object locality or a compatibility layer decision. Preserve the mount type, namespace, remote filesystem, automounter state, and operation that attempted to use the object as if it were local.

Distinguish from

EXDEV: an operation crosses filesystem or mount boundaries.
ESTALE: a remote file handle is no longer valid.
EREMOTEIO: a remote operation failed while performing I/O.

Linux errno(3) · Linux UAPI errno definitions

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