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- Path: sparky!uunet!gatech!rutgers!njitgw.njit.edu!hertz.njit.edu!dic5340
- From: dic5340@hertz.njit.edu (David Charlap)
- Newsgroups: comp.os.os2.misc
- Subject: Re: Can both DOS and OS2 be booted from same HD ?
- Keywords: boot, partition
- Message-ID: <1992Jul29.152502.12190@njitgw.njit.edu>
- Date: 29 Jul 92 15:25:02 GMT
- References: <HBPmoB2w165w@comtch.spk.wa.us>
- Sender: news@njit.edu
- Organization: New Jersey Institute of Technology, Newark, N.J.
- Lines: 29
- Nntp-Posting-Host: hertz.njit.edu
-
- In article <HBPmoB2w165w@comtch.spk.wa.us> mstaben@comtch.spk.wa.us (Matthew Staben) writes:
-
- >As far as I know - you can only use OS/2 to recognise an HPFS partition,
- >and the only way you'll be able to see all four partitions with both
- >operating systems is to use the FAT system for all four partitions. If
- >you find a way to boot DOS (from DOS) and still see the HPFS partitions,
- >I would be extremely interested in how this was done. It would be
- >interesting if a device driver was written for DOS to enable HPFS
- >partitions to be recognised.
-
- Well, DOS can read an HPFS partition as raw sectors. You can use
- Norton Utilities to read them (HPFS shows up as a "Non-DOS"
- partition).
-
- So you should be able to write an application to extract files from
- HPFS and copy them to a FAT volume. Assuming there is a byte-level
- description of the HPFS data structures available. You could have a
- DOS app do all the direct-sector reads to find files and read them.
-
- To install HPFS seamlessly in real DOS, though, would probably be
- prohibitive. I'd expect the driver to use all your real-mode memory
- for itself, leaving nothing for applications.
-
-
- --
- |) David Charlap "I don't even represent myself
- /|_ dic5340@hertz.njit.edu sometimes so NJIT is right out!.
- ((|,)
- ~|~ Hi! I am a .signature virus, copy me into your .signature file.
-