chris@mimsy.UUCP (Chris Torek) (01/13/89)
In article <2862@kuhub.cc.ukans.edu> sloane@kuhub.cc.ukans.edu (Bob Sloane) writes: >I have been looking for a portable operating system for some time. Does anyone >know of one? Unix? Which version? BSD, SYS V, Ultrix, XENIX,...? Does such >a thing really exist? I mean one operating system that can run on several >different machines, UNCHANGED. The `Tahoe' release of 4.3BSD runs on the DEC VAX series as well as the CCI/Harris/Sperry/ICL `Tahoe' machines (though not on all current models of each). The same user and kernel sources are used; machine dependent portions (device drivers and assembly code) are segregated by subdirectories; it is entirely feasible to run a command like okeeffe% tar cfFF - /usr/src | rsh somevax tar xf - okeeffe% rsh somevax 'cd /usr/src; make clean; make build' and make a new Unix system on a Vax based on the last month's work done on a Tahoe. (Okeeffe is a CCI Power 6/32 at Berkeley. The secret -F option in tar is for `source feathering'.) -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163) Domain: chris@mimsy.umd.edu Path: uunet!mimsy!chris