Path: utzoo!attcan!uunet!mailrus!uwm.edu!zaphod.mps.ohio-state.edu!samsung!aplcen!haven!udel!mmdf From: postmaster@att-in.att.com Newsgroups: comp.os.minix Subject: (none) Message-ID: <8373@nigel.udel.EDU> Date: 16 Jan 90 16:52:27 GMT Sender: mmdf@udel.EDU Lines: 45 Mail to `att.att.com!attmail!mhs!envoy!ics.test/pn=_test_group' alias `att!attmail!mhs!envoy!ics.test/pn=_test_group' from 'VM1.NoDak.EDU!INFO-MINIX%UDEL.EDU' failed. The error message was: destination unknown or forwarding disallowed The message began: Received: from NDSUVM1.BITNET by VM1.NoDak.EDU (IBM VM SMTP R1.2.1MX) with BSMTP id 8497; Tue, 16 Jan 90 09:50:41 CST Received: from NDSUVM1.BITNET by NDSUVM1.BITNET (Mailer R2.03B) with BSMTP id 8485; Tue, 16 Jan 90 09:50:40 CST Date: Tue, 16 Jan 90 13:00:31 GMT Reply-To: INFO-MINIX%UDEL.EDU@VM1.NoDak.EDU Sender: Minix operating system Comments: Warning -- original Sender: tag was info-minix-request@UDEL.EDU From: Aubrey McIntosh Subject: Re: disk geometry. Comments: To: info-minix@udel.edu To: Multiple recipients of list MINIX-L In the MS-DOS world it is beyond difficult to access the physical drive: you have to have a special low level program to do it. On the UCSD-p system, you could access a drive as a raw device and do a copy, or you could use the file system. the p-system had a boot record disk description on it, and it worked not only with different drives, but with different CPUs (with different byte sex!) My natural thoughts are to work within the file system only, because it does a nifty-keen job of knowing where everything is, and keeping it from getting all together. All of my tar files are in filesystems with names like cc.T. I can mail them across town to friends, or keep several on one floppy. 1) What do I gain by doing a tar to a raw floppy? 2) Can we adopt the convention that tar is done to files; modify build, and alert folks to some extra parameters to dd to preserve the disk geometry sector? -- Aubrey McIntosh comp.os.minix, comp.lang.modula2, soc.culture.celtic Austin, TX 78723 1-(512)-452-1540 (v)