Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!clyde!cbosgd!cwruecmp!hal!ncoast!allbery From: allbery@ncoast.UUCP (Brandon Allbery) Newsgroups: comp.os.minix Subject: Re: Becoming ROOT on MINIX Message-ID: <2546@ncoast.UUCP> Date: Fri, 22-May-87 23:30:20 EDT Article-I.D.: ncoast.2546 Posted: Fri May 22 23:30:20 1987 Date-Received: Sat, 23-May-87 19:25:28 EDT References: <600@dutesta.UUCP> <832@ncsuvx.ncsu.edu> Reply-To: allbery@ncoast.UUCP (Brandon Allbery) Followup-To: comp.os.minix Organization: Cleveland Public Access UN*X, Cleveland, Oh Lines: 23 As quoted from <832@ncsuvx.ncsu.edu> by abc@ncsuvx.ncsu.edu (Alan B. Clegg): +--------------- | This brings up a point that may have been discussed before, but I don't | remember it. Why do 'casual users' get to mount and unmount disks? +--------------- Because Minix is based on V7, and V7 allowed it. System III (on the AT&T side) changed that. Actually, I used that feature quite a bit once under Xenix 2.3, back when ncoast was a Radio Shack Mod 16 with 8MB HD; I mounted /dev/fd2 as /u/allbery (after moving to /) and subsequently had 1.2MB to play with safely. However, it does seem a security hole. At least you have source so you can fix it. ++Brando -- Copyright (C) 1987 Brandon S. Allbery. Redistribution permitted only if the redistributor permits further redistribution. ---- Moderator for comp.sources.misc ---- Brandon S. Allbery {decvax,cbatt,cbosgd}!cwruecmp!ncoast!allbery Tridelta Industries {ames,mit-eddie,talcott}!necntc!ncoast!allbery 7350 Corporate Blvd. necntc!ncoast!allbery@harvard.HARVARD.EDU Mentor, OH 44060 +01 216 255 1080 (also eddie.MIT.EDU)