Xref: utzoo comp.bugs.sys5:458 comp.unix.wizards:9132 Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!oliveb!sun!gorodish!guy From: guy@gorodish.Sun.COM (Guy Harris) Newsgroups: comp.bugs.sys5,comp.unix.wizards Subject: Re: File System Type (statfs, sysfs) Keywords: System V Release 3.1.1 Version 3 for AT&T 3B2 Message-ID: <55513@sun.uucp> Date: 6 Jun 88 17:14:12 GMT References: <479@uniq.UUCP> <681@labtam.OZ> <480@uniq.UUCP> <5747@chinet.UUCP> Sender: news@sun.uucp Lines: 9 > Doesn't release 3.1's "find" have a -local parameter to keep it from > walking into remote filesystems (useful when the other machine is > doing its own backups and disk accounting..)? There must be some > reliable way to tell the remote mounts. No, not necessarily. There just happens to be a way that happens to work under S5R3.x, namely "if the 'dev_t' on which the file exists has its high bit set, the file system is remote." This trick also happens to work under SunOS, and maybe under other versions of UNIX, but it has never, as far as I know, been specified as an official part of the UNIX system interface.