Xref: utzoo comp.unix.questions:26433 comp.sys.next:8944 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!ucsd!ucbvax!unisoft!greywolf From: greywolf@unisoft.UUCP (The Grey Wolf) Newsgroups: comp.unix.questions,comp.sys.next Subject: Re: MACH kernel - source become pd? Keywords: MACH Message-ID: <3180@unisoft.UUCP> Date: 23 Oct 90 23:20:35 GMT References: <450@dill.UUCP> <26980@mimsy.umd.edu> <1369@mtxinu.UUCP> Reply-To: greywolf@unisoft.UUCP (The Grey Wolf) Organization: Foo Bar and Grill Lines: 32 In article <1369@mtxinu.UUCP> shore@mtxinu.com (Melinda Shore) writes: >In article <26980@mimsy.umd.edu> chris@mimsy.umd.edu (Chris Torek) writes: >>(Things look good; CMU already gives away Mach >>for free. The problem is that you must first show your AT&T source >>license.) > >And NFS and others. AFS pulls out pretty easily if you don't want >it or can't get a license, but the ufs filesystem is Sun vnode-based >and (alas) doesn't come out as cleanly. Drivers, math libraries, >debuggers, etc. are also usually under somebody or other's license >(different companies hold licenses for different platforms - >representative companies include Sun, DEC, IBM, Prime). I keep seeing references to the ufs; who technically owns the concepts behind the original Berkeley FFS? And couldn't some other schmo just as easily come up with a scheme for a "Virtual File System" that wouldn't infringe upon Sun's vnode filesystem? I know the original ufs (read: System V file system) is AT&T property, but why anyone would want to be stuck with 14-byte filenames and u_short inode numbers is beyond me. >-- >Melinda Shore shore@mtxinu.com >mt Xinu ..!uunet!mtxinu.com!shore -- "This is *not* going to work!" "Well, why didn't you say so before?" "I *did* say so before!" ...!{ucbvax,acad,uunet,amdahl,pyramid}!unisoft!greywolf