Path: utzoo!attcan!uunet!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cica!iuvax!bobmon From: bobmon@iuvax.cs.indiana.edu (RAMontante) Newsgroups: comp.sys.ibm.pc Subject: Re: Need help on weird disk FAST! Message-ID: <41361@iuvax.cs.indiana.edu> Date: 10 Apr 90 19:31:14 GMT References: <2778@milton.acs.washington.edu> Reply-To: bobmon@iuvax.cs.indiana.edu (RAMontante) Distribution: na Organization: malkaryotic Lines: 33 pingpong@milton.acs.washington.edu (Jimmy) <2778@milton.acs.washington.edu> : [ has a floppy with a puzzling DOS. Posting appended... ] This sounds like a floppy that was formatted with an earlier version of MSDOS from one of the vendors that (for what reason?) named those system files MSDOS.SYS and IO.SYS (in Zenith's case; other names may also have been used). That would be why you can't find IBMDOS.COM. If the files are too specific to one machine (e.g., Z-100 DOS can't boot a real IBM) the error might be reported as "Incorrect DOS version number". And because it's an old version, it doesn't leave enough room for a newer version. You need something to show you what those hidden files are named. Various MSDOS implementations of *nix 'ls' do this, as do other programs. Or, get a 'chmod' that doesn't need explicit filenames, to unhide the files. Or, forget about it and reformat the disk from scratch. [ orignal query follows ] -I hava a weird 5.25 floppy disk. -When I try to boot it from Drive A, it gives me two error messages : - - 1. Incorrect DOS version number - 2. Command interpreter not found. - -So I boot from my C drive, and do a DIR on drive A. NOTHING. That explains -error (2) since command.com is not there. Then I do a CHKDSK on Drive A and -it said '3 hidden files.' Then I used DEBUG A:IBMDOS.COM assuming that is -one of the hidden files. But nope, FILE NOT FOUND. Now, finally, I tried -SYS A:, but it gave me 'insufficient space for system...' - -Could anyone explain error (1) to me? -How could I find out the DOS version on my floppy disk? -Why doesn't SYS work on my floppy disk?