Path: utzoo!attcan!uunet!snorkelwacker!ira.uka.de!sun1.ruf.uni-freiburg.de!hartnegg From: hartnegg@sun1.ruf.uni-freiburg.de (Klaus Hartnegg) Newsgroups: comp.os.msdos.misc Subject: Re: help: peculiar msdos 3.3 crash Message-ID: <1990Oct5.172806.8081@sun1.ruf.uni-freiburg.de> Date: 5 Oct 90 17:28:06 GMT References: <5XwDq2w163w@bluemoon.UUCP> <1286.270b48d3@iccgcc.decnet.ab.com> Reply-To: HAKL@ibm.ruf.uni-freiburg.de Organization: Rechenzentrum der Universitaet Freiburg, Deutschland Lines: 29 browns@iccgcc.decnet.ab.com (Stan Brown, Oak Road Systems) writes: >In article <5XwDq2w163w@bluemoon.UUCP>, andy (Andy Vaught) writes: >> The following restrictions apply: >> 1) IBMBIO.COM (IO.SYS) must be the first file in the root directory >> 2) IBMDOS.COM (MSDOS.SYS) must be the second file >> 3) The files must be the first files stored on disk, and they must be >> stored in order in contiguous clusters. >1 and 2 are true for all DOS versions up through 3.3 (which was the >original poster's question). 3 is >> FALSE << for DOS 3.3. Who knows something about upgrading to Dos 4.01? I tried to do it with Norton's Disk Doctor and it seemed to work first but on the second day Dos destroyed the boot-area, fat and directory of the hard-disk on C: while running an endless loop that was writing data on D: (second partition) and this second partition got full. DOS 4.01 can read floppy disks with the old type of FAT but what about hard disks? And what about Dos's signature that every disk gets that is formatted with 4.01? Is it really necessary on hard disks? Could the missing of this signature cause DOS to overwrite the FAT? -- --------------------------------------------------------------- Klaus Hartnegg, Kleist-Str. 7, D-7835 Teningen, Tel 07641/48652 BITNET : HAKL@DFRRUF1 Internet : HAKL@ibm.ruf.uni-freiburg.de