In a message of 06-23-1997, EARL GATELY wrote re: Setting up dual
boot
EG> DOS 6.22 has a setup for multiple configurations prior to
EG> executing the Config.sys and Autoexec.bat which will allow
EG> different setups depending upon the menu item selected. Would
EG> it be possible to make one of those selections OS/2 boot-up
EG> files. 
No.  More than just a couple files have to be changed; the boot
record must also be altered to point to the OS/2 system files
instead of MS-DOS ones.  With "Dual Boot" you go from one system
to another by typing "BOOT /DOS" or "BOOT /OS2"
From the OS/2 on-line help:
 
BOOT
 Switches between the DOS and OS/2* operating systems that are on
the same hard disk  (drive C). 
  ÄÄÄÂÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÂÄÄÄÄÄÄÄÄÂÄÄÄÄ BOOT ÄÄÄÄÄÄÂÄ /OS2 ÄÂÄÄÄÄ´
     ÀÄ drive ÄÙ     ÀÄ path ÄÙ                ÀÄ /DOS ÄÙ
 
 
 The BOOT command can be run from an OS/2 command prompt or a DOS
command prompt as well as from DOS. 
 BOOT is available under the following conditions: 
    o  DOS Version 3.2 (or a later version) was installed and
operating on drive C before the OS/2 operating system was
installed. (It is recommended that you use DOS 3.3, DOS 4.0, or
DOS 5.0 for greater compatibility with OS/2) 
    o  Drive C was not formatted during OS/2 installation. 
    o  The High Performance File System was not installed on
drive C.       Before typing the BOOT command, make sure all
system operations are complete and all programs are stopped. 
  BOOT verifies that the following files exist: 
       OS/2 files 
            OS2LDR (hidden file) 
            OS2KRNL (hidden file) 
            OS2\SYSTEM\BOOT.OS2 
            OS2\SYSTEM\CONFIG.OS2 
       DOS files 
            IBMDOS.COM or MSDOS.SYS (hidden files) 
            IBMBIO.COM or IO.SYS (hidden files) 
            OS2\SYSTEM\BOOT.DOS 
            OS2\SYSTEM\CONFIG.DOS 
  
  When you use the BOOT command to start DOS from the OS/2
operating system, BOOT renames and stores system startup
information as follows: 
    1. Saves the OS/2 boot record as C:\OS2\SYSTEM\BOOT.OS2 
    2. Moves the OS/2 AUTOEXEC.BAT file to
C:\OS2\SYSTEM\AUTOEXEC.OS2. 
    3. Moves the OS/2 CONFIG.SYS file to
C:\OS2\SYSTEM\CONFIG.OS2. 
    4. Copies C:\OS2\SYSTEM\BOOT.DOS to the DOS boot record. 
    5. Moves the DOS AUTOEXEC.BAT file from
C:\OS2\SYSTEM\AUTOEXEC.DOS to the root directory as BOOT moves
the OS/2 AUTOEXEC.BAT file. 
    6. Moves the DOS CONFIG.SYS file from
C:\OS2\SYSTEM\CONFIG.DOS to the root directory as BOOT
moves the OS/2 CONFIG.SYS file. BOOT reverses the process when
you want to start the OS/2 operating system. 
  Return Codes:  BOOT displays either a return code of 0 for
normal completion or the appropriate error message.
EG> An example:
EG> My D: drive is set up for OS/2 (figurtively) and my C: drive
EG> is set up for DOS.  When I boot, I get the menu asking which
EG> setup I wish to execute.  If I press D:drive, could I boot up
EG> with OS/2?? 
What you want is "Boot Manager" which is also included with OS/2
and is a much better way of managing multiple operating systems on
a single machine.
 * KWQ/2 1.2i * Internet: John.Thompson@ibm.net
--- OS/2 Warp\FastEcho\FD\ProBoard
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