Re: Need to make a DOS 6.22 boot usb

From	Michael Black <et472@ncf.ca>
Newsgroups	comp.os.linux.misc
Subject	Re: Need to make a DOS 6.22 boot usb
Date	2014-08-23 12:16 -0400
Organization	National Capital Freenet, Ottawa, Ontario, Canada
Message-ID	<alpine.LNX.2.02.1408231214100.20302@darkstar.example.org> (permalink)
References	<lt8pkr$ke0$1@dont-email.me> <lt92qe$f8f$1@speranza.aioe.org> <lt9498$ebc$1@dont-email.me>

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On Fri, 22 Aug 2014, Todd wrote:

> On 08/22/2014 08:46 PM, Balwinder S Dheeman wrote:
>> On 08/23/2014 06:41 AM, Todd wrote:
>>> Hi All,
>>> 
>>> I need to make a bootable USB drive with DOS 6.22 on
>>> it to do a bunch of BIOS flash updates.
>>> 
>>> I have an image of an old DOS 6.22 floppy drive,
>>> but can't figure out how make it bootable on
>>> a USB drive.
>> 
>> Try dd if=<path_to/>msdos_6.22.img of=/dev/sdX
>> 
>> where X is for the USB drive; make sure the MS-DOS image bootable.
>> 
>>> And, Free DOS crashes the flash update utility.
>> 
>
>
> Tried that.  Didn't work.
>
How did you make the "image"?

If you just copied that floppy, stuff is probably missing so it won't 
boot.  You need an actual image of the boot disk, which includes some 
hidden files, but also some code at the right place on the floppy that is 
read and executed to pull in the rest.

That's how Linux floppies were made bootable, the boot code at on the 
floppy.  Even booting from a CDROM, the same arrangement is done, so one 
can put a bootable floppy disk image onto a CDROM in the proper fashion 
and boot from the CDROM.

I seem to recall a USB flash drive may be more complicated, certainly I've 
fiddled around with doing that sort of thing and it didn't always work.

   Michael

Thread

Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-22 18:11 -0700
  Re: Need to make a DOS 6.22 boot usb Balwinder S Dheeman <bdheeman.SANSPAM@outlook.com> - 2014-08-23 09:16 +0530
    Re: Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-22 21:13 -0700
      Re: Need to make a DOS 6.22 boot usb "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2014-08-23 00:49 -0400
        Re: Need to make a DOS 6.22 boot usb "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2014-08-23 00:57 -0400
      Re: Need to make a DOS 6.22 boot usb Michael Black <et472@ncf.ca> - 2014-08-23 12:16 -0400
        Re: Need to make a DOS 6.22 boot usb Robert Heller <heller@deepsoft.com> - 2014-08-23 12:28 -0500
          Re: Need to make a DOS 6.22 boot usb Grant <omg@grrr.id.au> - 2014-08-24 09:50 +1000
      Re: Need to make a DOS 6.22 boot usb Jerry Peters <jerry@example.invalid> - 2014-08-24 20:14 +0000
  Re: Need to make a DOS 6.22 boot usb Rich <rich@example.invalid> - 2014-08-23 04:24 +0000
    Re: Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-22 21:35 -0700
      Re: Need to make a DOS 6.22 boot usb gazelle@shell.xmission.com (Kenny McCormack) - 2014-08-23 10:28 +0000
        Re: Need to make a DOS 6.22 boot usb faeychild <faeychild@noreply.afraid.com> - 2014-08-24 10:43 +1000
          Re: Need to make a DOS 6.22 boot usb "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2014-08-24 19:35 -0400
            Re: Need to make a DOS 6.22 boot usb gazelle@shell.xmission.com (Kenny McCormack) - 2014-08-24 23:46 +0000
      Re: Need to make a DOS 6.22 boot usb Rich <rich@example.invalid> - 2014-08-23 13:26 +0000
        Re: Need to make a DOS 6.22 boot usb The Natural Philosopher <tnp@invalid.invalid> - 2014-08-23 15:11 +0100
          Re: Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-24 19:43 -0700
        Re: Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-24 19:46 -0700
  Re: Need to make a DOS 6.22 boot usb Huibert Bol <huibert.bol@quicknet.nl> - 2014-08-23 08:31 +0200
    Re: Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-24 19:51 -0700
  Re: Need to make a DOS 6.22 boot usb Todd <Todd@invalid.invalid> - 2014-08-26 11:44 -0700

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